Nevaeh

This page lists questions and answers that were posted by visitors named Nevaeh.

Questions

The following questions were asked by visitors named Nevaeh.

Exercise 14.55 Consider the reaction: NiO(s)+CO(g)⇌Ni(s)+CO2(g) Kc=4000.0 at 1500 K When calculating the answer, do not round to the appropriate number of significant figures until the last calculation step..

9 years ago

Predict the effect of decreasing the temperature on the position of the following equilibria. (a) H2(g) + Cl2(g) ↔ 2HCl(g) + 49.7 kJ My answer: shifts to the right (b) 2NH3(g) ↔ N2(g) + 3H2(g) ∆ H = 37.2 kJ My answer: shifts to the left (c) CO(g) + H2O(g)...

9 years ago

A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill the balls on both sides). My a...

9 years ago

What is the final temperature and physical state if water when 47.50 kJ of energy is added to 15.0 g of ice at -10.0 C? Helpful information: Cs (ice) = 2.1 J/g C Heat of fusion (water) = 6.02 kJ/mol Cs (water) = 4.184 J/g C Heat of vaporization (water) =...

9 years ago

How many gallons of ethylene glycol, molar mass 62.07 g/mol, density = 1.1 g/mol do you need to add to each gallon of water ( 1 gallon = 4 liters and kf = 1.85 C/m) in your radiator to get the water to freeze at -15 C? Is it 0.458 gallon?

9 years ago

I got 62.9 mL. Is this correct? I think HCl is the LR. A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) + H2 (g) What volume of hydrogen gas (in mL) is collected over water at 25 degrees...

9 years ago

Which if the folowin species is not amphoteric? a) H2SO4 b) H2PO4- c) HPO4 2- d) HSO4- e) H2O

9 years ago

The pH scale ranges from 0 to 14. What is the range of the hydronium ion concentration covered by this scale?

9 years ago

Ammonium hydroxide is commonly advertised as an ingredient in some window cleaners. Rank the following in order of decreasing concentrations in these solutions: NH4OH, NH4+, OH-, NH3. Explain your reasoning. (Note that kb for ammonia = 1.8 x 10^-5. So doe...

9 years ago

Determine [OH-] of a solution that is 0.135 M in CO3^2-. I got 0.00532.

9 years ago

What is the pH of a solution that is 0.150 M in acetic solution and 0.300 M in sodium acetate? The Ka of acetic acid is 1.8 x 10^-5. My work: pH= pKa + log (base/acid) pH= -log (1.8 x 10^-5) + log (0.300/0.150) pH=5

9 years ago

The outside diameter of a pipe is 5 cm. The inside diameter is 4 cm. The pipe is 4 meters long. What is the volume of the material used for this length of pipe?Round your answer to the nearest cubic centimeter. (Hint: be sure that all units are in centime...

9 years ago

A student completes a titration of an unknown diprotic acid. In this experiment, 0.79 g of the acid is dissolved in 250.0 mL of water. It requires 13.48 mL of 1.0 M NaOH to reach the second equivalence point. What is the molar mass of the acid?

9 years ago

When titrating 50.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the 1st equivalence point? I am confused... What H2A problem? Chemistry-Dr.Bob222 - DrBob222, Tuesday, April 12, 2016 at 1:49am Refer to the H2A prob...

9 years ago

A 40.0 mL sample of 0.100 M HNO2 is titrated with 0.200 M KOH. Calculate the pH at the equivalence point for the titration of HNO2 and KOH. I got pH= 11.74.

9 years ago

A 40.0 mL sample of 0.100 M HNO2 is titrated with 0.200 M KOH. Calculate the pH at the equivalence point for the titration of HNO2 and KOH. When I did this problem again, I got pH= 8.08. Is this close to your answer? Dr.Bob: I estimated the pH and didn't...

9 years ago

A 100.0 mL sample of 0.05 M NH3 is titrated with 0.10 M HCl. Determine the pH of the solution after the addition of 50.0 mL HCl. Here is my work: NH3 + H3O+ --> NH4+ + H2O Before Addition: NH3= 0.005 mol H3O= 0 mol NH4+ = 0 mol Addition: NH3 = 0.005 mol H...

9 years ago

A 25.0 mL sample of 0.125 M pyridine is titrated with 0.100 M HCl. Calculate the pH at 0 mL of added acid.

9 years ago

Like a equilibrium constants, the values of Kw depends on temperature. At body temperature (37 C), Kw= 2.4 x 10^-14. What are the [H3O+] and pH of pure water at body temperature?

9 years ago

Determine [H30+], [OH-], and pH. A solution that is 0.655% HNO3 by mass (assume a density of 1.01 g/ mL for the solution).

9 years ago

Jay purchased a new leather jacket on sale at a 40% discount. The origanal list price was $320. What wad the amount of the discount. I just need to learn how to do this kind of question because my teacher did not teach me this.

9 years ago

Which is correct? The usefulness of learning is considered valuable. OR The learning usefulness is considered valuable.

9 years ago

Arrange the solutions in order of increasing acidity. NaCl, NH4Cl, NaHCO3, NH4CLO2, NaOH

9 years ago

A 500 mL buffer solution is 0.1 M benzoic acid and 0.10 M in sodium benzoate and has an initial pH of 4.19. What is the pH of the buffer upon addition of 0.010 mol of NaOH?

9 years ago

Is there an actual value for the buffer capacity of acetic acid? I need to know the actual value, so that I can calculate the percent error for my lab.

9 years ago

Consider the compounds with the generic formula listed and their corresponding molar solubilities in pure water. Which compound has the smallest value of Ksp? a. AC; molar solubility = 1.35 x 10^-4 M b. AX2; molar solubility = 2.25 x 10^-4 M c. A2X; molar...

9 years ago

Calculate the molar solubility of calcium hydroxide in a solution buffered at each pH. a. pH=4 b. pH= 7 c. pH=9

9 years ago

A 1.00 L buffer solution is 0.250 M in HC2H3O2 and 0.250 M in NaC2H3O2. Calculate the pH of the solution after the addition of 0.150 mol of solid NaOH. Assume no volume change upon the Additon o f NaOH. The Ka value for HC2H3O2 at 25 C is 1.8 x 10^-5.

9 years ago

I got pH = 5.3 A 1.00 L buffer solution is 0.250 M in HC2H3O2 and 0.250 M in NaC2H3O2. Calculate the pH of the solution after the addition of 0.150 mol of solid NaOH. Assume no volume change upon the Additon o f NaOH. The Ka value for HC2H3O2 at 25 C is 1...

9 years ago

Question 2 What is the solubility of AgCl in 10 M NH3? The Kf of Ag(NH3)2+ from AgCl(s) in aqueous NH3 is 0.0031, which is for the balanced reaction shown below. AgCl(s) + 2 NH3(aq) → Ag(NH3)2+(aq) + Cl-(aq) Is the answer 0.557 M?

9 years ago

I do not quiet understand what you said. Could you show your work. What is the solubility of AgCl in 10 M NH3? The Kf of Ag(NH3)2+ from AgCl(s) in aqueous NH3 is 0.0031, which is for the balanced reaction shown below. AgCl(s) + 2 NH3(aq) → Ag(NH3)2+(aq) +...

9 years ago

What is the solubility of AgCl in 10 M NH3? The Kf of Ag(NH3)2+ from AgCl(s) in aqueous NH3 is 0.0031, which is for the balanced reaction shown below. AgCl(s) + 2 NH3(aq) → Ag(NH3)2+(aq) + Cl-(aq) Work: Ksp = x^2 /(2x+10)^2 = 1.8 x 10^-10 Now I am confuse...

9 years ago

Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solutions to the left. a. 0.035 M BaNO3; NaF b. 0.085 M CaI2 ; K2SO4 c. 0.0018 M AgNO3 ; RbCl My work: Are my answers correct? a. BaN...

9 years ago

Predict the half-reactions occurring at the anode and the cathode for the electrolysis of aqueous Na2SO4.

9 years ago

A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 C. The initial concentrations of Ni2+ and Zn2+ are 1.50 M and 0.10 M, respectively. a. What is the initial cell potential? My answer: 0.56 B b. What is the cell potential when th...

9 years ago

Is the following correct? "The abysmal absence of food deprived me of energy."

9 years ago

Rank the following atoms in order of decreasing electronegativity, putting the most electronegative first: F, Ne, O, N, C

9 years ago

Which is the electrophilic site in the molecule (CH3)2C=O? A. CH3 carbon B. CH3 hydrogen C. C=O carbon D. C=O oxygen I think the answer is D. because oxygen is electronegative and wants to hog electrons this making it electrophilic. Is this correct?

9 years ago

Idk the answer to the question please help. Your a good man,Charlie Brown and "Happiness is a charming Charlie Brown at Orlando Rep" have very different purposes. In a paragraph, discuss how the purpose of each selection is reveled and why the purpose of...

8 years ago

The soccer team is selling key chains to raise money for the team. They ordered 100 key chains that sell for .25 each. There is a flat shipping rate of $8. The team sells the key chains for $2 each. With that information, I figured they made $33.00 sellin...

7 years ago

I am a seven letter word most people want me. If you have the second third and fourth letter you are sick. The 5th, 6th, and 7th letters are something with a charge. What am I?

7 years ago

How do i unscramble LCAIRTEPE

7 years ago

An ant is on top of a tree 232323 meters tall, directly above her home, which is 0.30.30, point, 3 meters below the ground. Which of the following expressions represents the distance between the ant and her home? A.) ∣0.3−23∣ B.) ∣23−(−0.3)∣ C.) None of t...

6 years ago

Can you assume that any fraction is in simplest form if either the numerator or denominator is a prime number?

4 years ago

A student applies a 100 n force at an angle 55 degrees above the horizontal to a 20 kg box. The coefficient of static friction is 0.43 and the coefficient of kinetic friction is 0.3. Describe the motion. I really need help with this.

4 years ago

An early major objection to the idea that the earth rotates on its axis was that it would have to turn so fast that people would be thrown off into space. Show the error in this logic by calculating: the speed of a 100 kg person standing at the equator. (...

4 years ago

a 45 kg boy sits on a horse on a carousel 5.0 m from the center of the circle. he makes a revolution every 8.0 s. calculate his speed. what is centripetal force acting on the boy?

4 years ago

a student attaches a 0.5 kg object to a 0.7 m string and rotates the object around her head and parallel to the ground. how much tension force is required to make the object rotate with a speed of 12 m/s?

4 years ago

The function f has a domain of [0,5]and a range of [0,3]. Start by sketching a potential graph of f. Suppose the function k is defined as k(x)=f(x−3). Determine the domain and range of k. Domain: Range:

4 years ago

what is the average gravitational force of attraction between the earth and the sun? the earth averages a distance of about 150 million km. the earth has a mass of 5.97x10^24 kg, and the sun has a mass of about 2x10^30 kg.

4 years ago

the earth 's moon has a gravitational field strength of about 1.6 n/kg near its surface. the moon has a mass of 7.35x10^22 kg. what is the radius of the moon?

4 years ago

titan is the largest moon of Saturn. if a 60 kg person stood on titan, they would have a weight of 81 N. a. what is titan's mass if it has a radius of 2576 km? b. what is the gravitational field strength of titan near its surface?

4 years ago

Ok im just here to check my answer for this question a student places two 100 kg spheres a distance of 0.5 m apart. what is the gravitational force between the two spheres? Fg= GmM/r^2 F= 6.67x10^-11(100)(100)/(0.5)^2 F= 2.67x10^-6 N Correct me if I'm wr...

4 years ago

what is the average gravitational force of attraction between the earth and the sun? the earth averages a distance of about 150 million km(aka 1.5x10^8 km). the earth has a mass of 5.97x10^24 kg, and the sun has a mass of about 2x10^30 kg. Correct me if...

4 years ago

which applies a larger force: the gravitational force on Mars by the sun or the gravitational force on the sun by Mars? explain your answer. Correct me if I'm wrong. Neither. They apply the same force on each other.

4 years ago

what is the gravitational field strength of mars measured at a position 400 km above its surface? mars has a mass of 6.39x10^23 kg and a radius of 3390 km. Correct me if I'm wrong. G=GM/r^2 G=(6.67×10^-11)(6.39×10^23)/(3390000+400000)^2 G=(6.67×10^-11)(6...

4 years ago

a student connects an object with mass m to a rope with a length r and then rotates the rope around her head parallel to the ground. the object takes 0.5 seconds to complete one rotation. mass= 50 kg. length of the rope = 1.2 m what is the objects speed o...

4 years ago

A student places an object with a mass of m on a disk at a position r from the center of the disk. The student starts rotating the disk. When the disk reaches a speed of 0.8 m/s, the object starts to slide off the disk. What is the coefficient of static f...

4 years ago

A particular satellite with a mass of m is put into orbit around Ganymede (the largest moon of Jupiter) at a distance 300 km from the surface. What is the gravitational force of attraction between the satellite and the moon? (Ganymede has a mass of 1.48x1...

4 years ago

I'm here to check my answers please correct me if I'm wrong. A student places an object with a mass of m on a disk at a position r from the center of the disk. The student starts rotating the disk. When the disk reaches a speed of 0.8 m/s, the object star...

4 years ago

Tony uses the length of his hand to measure the size of his desk. He finds the top of his desk to be about "3 hands by 9 hands" in size. Jacqueline uses her hand and finds the same desk to measure about "4.25 hands by 12.75 hands" in size. Tony's hand is...

4 years ago

Which of the following are appropriate units of angle measure? Select all that apply. 1/7-th of the circumference of a circle. 1 radian 1 inch 1/15-th of the circumference of a circle. 1 degree 1 meter

4 years ago

what is the gravitational potential energy of a 30 kg box at rest on top of a hill that is 15 m tall? Peg= mgh Peg= (30 kg)(9.8 m/s^2)(15m) Peg= 4410 J Is this correct?

4 years ago

what is the spring potential energy of a spring that is stretched 15 cm if its spring constant is 350 n/m? how much force is required for this stretch?

4 years ago

how much work is required to make a 1400 kg car increase its speed from 10 m/s to 20 m/s? what average force is required if the car travels 15 m during this speed change?

4 years ago

how much work is required to make a 1400 kg car increase its speed from 10 m/s to 20 m/s? what average force is required if the car travels 15 m during this speed change? So I got 70000 J for the first part The second part is W=fd W= (1400)(15) W= 21000...

4 years ago

a student applies a constant 200 n of force horizontally to a box for distance of 5.0 m. how much work does the student do on the box?

4 years ago

a 70 kg student stands on top of a 5.0 m platform diving board . how much gravitational potential energy does the student have? how much work did it take for the student to travel from the ground to the top of the platform diving board?

4 years ago

a spring stretches from an initial height of 5 cm to a final stretch of 10 cm. the spring constant is 800 n/m.How much work was done on the spring? what is the final force on the spring when it is at its 10 cm stretch? explain why it is not appropriate to...

4 years ago

a 10 gram bullet is fired horizontally out of a rifle with a 0.8 m long barrel. The speed of the bullet when it emerges from the barrel is 500 m/s. What was the average force of the exploding gases on the bullet while it traveled through the barrel?

4 years ago

A spring whose spring constant is 850 N/m is compressed 0.40 m. What is the maximum speed it can give to a 500. g ball? 4. If the spring in #3 were compressed twice as much, how many times greater would the velocity of the ball be?

4 years ago

A bullet with a mass of 10. g is fired from a rifle with a barrel that is 85 cm long. a. Assuming that the force exerted by the expanding gas to be a constant 5500 N, what speed would the bullet reach?

4 years ago

A 24 kg child descends a 5.0 m high slide and reaches the ground with a speed of 2.8 m/s. a. How much energy was dissipated due to friction in the process?

4 years ago

Suppose a scrawny 20. kg Wyle was shot straight up with an initial velocity of +50 m/s. a. Assuming that all his initial Ek was transformed into Eg, what is the maximum height he could reach? b. Suppose that 20% of his initial Ek were lost due to friction...

4 years ago

A 60. kg student jumps from the 10. meter platform at ASU's swimming complex into the pool below. a. Determine her Eg at the top of the platform. 5880 J b. How much Ek does she possess at impact? 5880 J What is her velocity at impact? 14 m/s c. Repeat ste...

4 years ago

A building is 52 meters tall. The building next to it is 50.36 meters tall. What is the difference between the heights of the buildings?

4 years ago

Checking my answer a 60 kg box is lifted by a rope a distance of 10 meters straight up at a constant speed. How much power is required to complete this task in 5 seconds? P=w/t P=(PEg)/t P=mgh/t P=(60 kg)(9.8 m/s^2)(10 m)/ 5 s P= 1176 W

4 years ago

Trent is skiing on a circular ski trail that has a radius of 0.9 km. Trent starts at the 3-o'clock position and travels 2.6 km in the counter-clockwise direction. How many radians does Trent sweep out? ____ radians When Trent stops skiing, how many km is...

4 years ago

A toy racecar races along a circular race track that has a radius of 24 meters. The racecar starts at the 3-o'clock position of the track and travels in the CCW direction. Suppose the racecar has traveled 56 meters along the race track. How many radians h...

4 years ago

A skier skis along a circular ski trail that has a radius of 1.3 km. The skier starts at the East side of the ski trail and travels in the CW (clockwise) direction. Let θ represent the varying number of radians the skier has swept out in the CW direction....

4 years ago

Suppose a represents some number of radians where 0 < a < π 2 , and cos ( a ) = 0.7 and sin ( a ) = 0.72 . Determine the values of the following expressions. cos ( − a ) = sin ( − a ) = Hint: it might help to start by drawing a diagram of two angles: one...

4 years ago

what is the cost to run a single 100 w light bulb for 30 days if the electric company charges $0.18 for every KW-hr?

4 years ago

A Ferris wheel has a radius of 30 feet and travels 6.8 feet every second. At what constant angular speed does the Ferris wheel rotate at (in radians per second)? ______radians per second A Ferris wheel has a radius of 26 feet and travels 2 radians every 4...

4 years ago

Find the volume of the rectangular prism

4 years ago

Rachel is bowling with her friends. Her bowling ball has a radius of 4.1 inches. As she bowls she tracks the location of the finger hole above the ground. She starts tracking the location when the finger hole is at the 12 o'clock position and she notices...

4 years ago

An astronaut on a spacewalk pushes off of the outside of the spaceship. Compare the force of the astronaut on the ship to the force of the ship on the astronaut. Compare the astronaut's change in momentum to the spaceship's change in momentum. Compare the...

4 years ago

A 0.75 kg toy car moving with a speed of 3 m/s to the right collides with a 0.25 kg toy car moving with a speed of 3 m/s to the left. The two collide and the 0.25 kg toy car ends with a speed of 5 m/s to the right. What is the final speed of the 0.75 kg c...

4 years ago

Checking my answers a disk of radius 10 cm speeds up from rest. it turns 60 radians reaching an angular velocity of 15 rad/s. what was the angular acceleration? b. how long did it take the disk to reach this velocity? a) α = ? (ω2)^2 = (ω1)^2 + 2α(theta)...

4 years ago

Consider a point with rectangular coordinates (x,y). If x<0 then the polar coordinates of the point are (r,θ) where r≥0 and −π/2≤θ<3π/2and: r= θ= If x≥0 then the polar coordinates of the point are (r,θ) where r≥0 and −π/2≤θ<3π/2 and: r= θ= For both r is r...

4 years ago

A disk of radius 10 cm speeds up from rest. It turns 60 radians reaching an angular velocity of 15 rad/s. What was the angular acceleration? B.How long did it take the disk to reach this velocity? a=w^2/2(theta) a=15^2/(2(60)) a=1.875 rad/s^2 t=w/a t=15/...

4 years ago

A disk of a radius 50 cm rotates at a constant rate of 100 rpm. What distance in meters will a point on the outside rim travel during 30 seconds of rotation? 100 rev/min(2pi rad/rev)/(60 sec/min)=3 1/3pi rad/s D=wrt=3 1/3pi(0.50)(30)=50pi m= 157 m Is...

4 years ago

A disk of radius 25 cm spinning at a rate of 30 rpm slows to a stop over 3 seconds. What is the angular acceleration? B. How many radians did the disk turn while stopping ? C. how many revolutions? 30 rev/min(2pi rad)/(60 sec/min)=pi rad/s A= delta(w)/t...

4 years ago

A disk of a radius 50 cm rotates at a constant rate of 100 rpm. What distance in meters will a point on the outside rim travel during 30 seconds of rotation? Is this correct R= 50 cm=0.5 m f=100 rpm W=2pif=2pi(100)=200pi rad/min=200pi (rad/60s)=10/3pi...

4 years ago

a stop over 3 seconds. What is the angular acceleration? B. How many radians did the disk turn while stopping ? C. how many revolutions? R=25 cm= 0.25 m F=30 rpm w0=2pif=2pi(30)=60pi rad/min W0=60pi rad/60s=pi rad/s W=at+w0 0=a(3)+pi a= -pi/3 Theta=1/2a...

4 years ago

An airplane is flying with a constant altitude at a speed of 450 mph in a direction 10° north of west directly towards its final destination. The airplane then encounters wind blowing at a steady 34 mph in a direction 85° north of east. If the pilot does...

4 years ago

A piece of art weighing 30 pounds is hung from two wires as shown below. Each wire is supporting half of the weight of the picture. However, since the wires extend out at an angle, they are also imparting force towards the left and right. Therefore, the f...

4 years ago

what is the period of a spring-mass system if the mass is 15 kg and the spring constant is 50 N/m? b. what is the frequency of oscillation?

4 years ago

what is the period of a pendulum if the length of the rope is 1.5 m?

4 years ago

oscillating spring mass systems can be used to experimentally determine an unknown mass without using a mass balance. a student observes that a particular spring-mass system has a frequency of oscillation of 10 Hz. the spring constant of the spring is 250...

4 years ago

Answers

The following answers were posted by visitors named Nevaeh.

(30.5)(X)(10.8)+(?)(10.8)=0 What number goes in the calorimeter constant ?

14 years ago

It's still not giving me the right answer. I'm pulling in the numbers, and doing the equation right. But, it keeps telling me, I am wrong.

14 years ago

an eight sided number cube has the numbers 1,2,3,4,5,6,7 and 8 on it. the number cube is thrown once. What is the probability of 2?

11 years ago

The answer is more than and 275 more because if u divide 13,750 by 50 you will get 275and if you divide 13,750 by 25 you will get 550 and is more than 275 Your welcome and sorry im so late but at least you know the answer now

9 years ago

$41

9 years ago

I got 0.08, but the answer is wrong!

9 years ago

never mind.. I got 0.10..

9 years ago

Actually, when I did the problem again, I got 8.08. Is this correct?

9 years ago

9+4=13 13/2=6.5 So the answer is 6.5

what are the writing questions

5 years ago

It is january 24 Ejjsmz Z Znxj

5 years ago

What is the purpose of adding graphics and multimedia to informational texts?(1 point) A. To clarify certain kinds of information for ease of understanding B. To reduce the amount of information for the reader C. To make a report look good D. To remove di...

5 years ago

I picked C

5 years ago

I think a is right am I wrong

5 years ago

Mia Mee is 100% correct brother got 5/5

5 years ago

Please help i really don't understand this

4 years ago

Thanks but how do I do this ? b. the net force necessary to keep the person in this motion. c. how the normal force acting on the person compares to their weight. d. From your answers to these questions, explain why people do not fly off into space. What...

So would that make the tension required 9.47 N by any chance. That's what I got for the tension.

4 years ago

I really need help I'm not sure how to start this.

4 years ago

Same here I'm just really struggling

4 years ago

Need help

4 years ago

There are 19 individual socks how many pairs of socks are there will there be any socks without a match if so how many?

4 years ago

Ok so this is what I got for the first part U= 1/2k(delta x)^2 U= 1/2( 350 N/m)(15 cm)^2 U= 3.9375 j

4 years ago

So would the first one be Ke= 1/2mv2^2-1/2mv1^2 Ke= 1/2m(v2-v1)^2 Ke= 1/2(1400)(20-10)^2 Ke= 70000 J

4 years ago

W= (200 N)(5.0) W=1000 J Is this correct

4 years ago

Pe=(70)(9.8)(5.0) Pe=3430 J Is this right

4 years ago

So would it be 156250 m/s^2 And 1562500 N

4 years ago

So would it be 156250 m/s^2 and 1562.5 N

4 years ago

Would that be 127.6 m and 102.08 m

4 years ago

Would it be 16.5 m/s and 33 m/s since velocity would be doubled.

4 years ago

Would it be 1081.92 J

4 years ago

Wouldn't that be 967 m/s

4 years ago

So for 4 do we have to do any work like the first one

4 years ago

Please check this

4 years ago

$ 400 is that correct

Would it be A) they both have the same force B) they both have the same change in momentum C) the astronaut has a larger change in velocity.

4 years ago

Is this correct

4 years ago

*in velocity * sorry.

4 years ago

Is this correct if not correct me

4 years ago

I'm not sure about the angle

4 years ago

Your answers should be expressions in terms of x and y)

4 years ago

The second ones theta is tan(theta) =y/x But the first one is different

4 years ago

I really need to know

Is this correct A=wf^2-w0^2/2×delta(theta) A=15^2-0^2/2(60) A=15^2/2(60) A=1.875 rad/s^2 T=wf-w0/a T=15-0/1.875 T=8s

4 years ago

So for speed I got 454.22787863 mph And for miles in the last part is 68 miles.

4 years ago

I just need help finding the direction

4 years ago

How exactly would I use the tanθ = y/x formula

4 years ago

So would it be: T=2pisqrt(L/g) T=2pisqrt(1.5 m/9.8 N/kg) T=2.46 s Is this correct

4 years ago

in a dynamic , growing economy, changes in consumer demand and in technology continue to affect the market for particular types of labor. true or false. I'm not sure about this one.

4 years ago

What do the bigger g and f mean.

4 years ago

So it's e because a pendulum can increase frequency if it had a stronger gravity field or by shortening the rope of the pendulum itself.

4 years ago

I'm not sure how to do this

4 years ago

I choose c is that correct

4 years ago

Ok here I'd the next question to make the most out of their labor ,workers develop a. many different skills b. specialization c. profit d. strong work ethic I chose b

4 years ago

I got a is that correct

X=4 m What formula did you use

4 years ago

X=0.05 m 40+5=45 cm What formula did you use

Ok for the radians it's 2.16465084 radians and degrees is 124.02535746 degrees.

4 years ago

Can you help me with this question. When going up stairs, by which method would you do more work? A. Running B. Walking C. Crawling D. All of the above options E. There is not enough information to compare these situations

4 years ago

So it's d

4 years ago

When going up the stairs, by which method would you expend more power. A. Running B. Walking C. Crawling D. All of the above options produce the same power output. E. There is not enough information to compare these situations

4 years ago

So all of them have the same power output.

4 years ago

Would that be a.

4 years ago

So I guess walking and crawling are out of the question

4 years ago

A 1500 kg truck traveling at 80 km/h collides with another car of mass 1000 kg traveling at 30 km/h in the opposite direction. The two cars stick together after the collision. The speed immediately after the collision is

4 years ago

So how do I get this answer.

Would it be the cylinder

4 years ago

So it wouldn't be a., b., c.,or e. Is it d

I answer would be either 8 or 10, because both of the sides have to be greater than the third side.

3 years ago

I want 8 yummy and one fourth as many cupcakes:2

3 years ago