Sierra

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

Questions

The following questions were asked by visitors named Sierra.

The question I have is based on air having a density of 0.0013(g/mL). What is the mass of 550mL of air? How do I use the formula Density = mass/volume to solve this problem?

Using a graph, what is the relationship between volume and height?

What are dot arrays? What would a dot array for $1.84 look like? Thanks!

What dose 1/2 a page mean? Dose it mean 15 lines?

Need help... equivalent decimal for 214% =.214right? percentage 7 1/2% of 120 = 9% percent 15 is what percent of 75 = ?

a 100 g iron bar at 100 C is placed in 200 g of water at 20 C. If specific heat of iron is 0.11 cal/G*c to what final temperature will the iron bar cool?

A vibrator moves one end of a rope up and down to generate a wave. The tension in the rope is 58 N. The frequency is then doubled. To what value must the tension be adjusted, so the new wave has the same wavelength as the old one? would it be doubled?

Who is assigned to take care of diplomacy?

Hi, im doing a bible study and it tells mr to unscramble some names. Here are the questions... Towhat for men was Jesus taken to after he was arrested? It was _ _ _ _ _ (NNASA), the father in law of the second man. The second man is _ _ _ _ _ _ _ _ (AIPAC...

Information about Ponhatons

How long will it take to earn $252 in interest if $1200 is invested at a 7% annual interest rate??

what is 12 to the 2nd power?

In this sentence, "Yellowstone National Park is in Wyoming", is the word "in" the present tense verb?

Solve the inequality using a sign graph (test point method) x^3-x^2-4x+4<0

Calculate the weight of KHP that will react with 25mL of .1M NaOH

Find the scalar product of the vectors in Figure P7.8, where è = 117° and F = 31.0 N. y | | ___| Unk Angle----> / | -------\--------------x starts@O-----> / /| / / /_|/<-----117 degrees / / | / / <-----31.0N

If you are given a problem that has measurements in yards and asks you to find surface area, what would the units be in your answer?

A person of mass 55 kg stands at the center of a rotating merry-go-round platform of radius 3.4 m and moment of inertia 670 kg·m2. The platform rotates without friction with angular velocity 1.0 rad/s. The person walks radially to the edge of the platform...

The 2 kg block in Figure 7-25 slides down a frictionless curved ramp, starting from rest at a height of h = 3 m. The block then slides d = 12 m on a rough horizontal surface before coming to rest. Figure 7-25 (a) What is the speed of the block at the bott...

What is the volume of Tin(Sn)? Mass of sample = 2.588g Initial vol. of water = 31 m/L Final vol. of water = 32 m/L

What is the pH of a solution that is comprised of 0.0843 M HCl and 0.0287 M HClO4?

The track near the top of your favorite roller coaster has a circular shape with a diameter of 36 m. When you are at the top, you feel as if you weigh only one-fifth of your weight on the ground. What is the speed of the roller coaster?

Which is NOT a responsibility of the Department of Agriculture? 1. The opening of foreign markets to U.S. agricultural products =2. To oversee federal anti-hunger programs 3. The designation of lands for private and public use 4. Support for farmers with...

What materials can I use to make an imprint like a fossil?

Which of the following was NOT a reason why a stronger central government was needed? To solve the economic problems of the United States =To limit individual liberties To deal with military matters both internal and external To make the States work toget...

The Constitution gives sovereignty only to the _____.? A.State legislatures B.national government C.president of the United States D.State constitutions ....i need help, none of them are right?

Since the 1970s, the Supreme Court has interpreted the Equal Protection Clause as prohibiting the government from making "_____" distinctions between people. unreasonable =racial reasonable unnecessary

Article II of the United States Constitution established the _____. presidency only presidency and the vice presidency the vice presidency only =the Senate and the House

Which statement about the relationship between the president and the Cabinet is false? =Because the president is so busy, members of the Cabinet often have a good deal of leeway in the running of their departments. Not all executive departments are subjec...

A soccer ball is kicked with an initial speed of 27 m/s at an angle of 20° with respect to the horizontal.

A soccer ball is kicked with an initial speed of 27 m/s at an angle of 20° with respect to the horizontal. A) find the maximum height reached by the ball. B) find the speed of the ball when it is at the highest point on its trajectory. C) where does the b...

Consider the motion of the rock in the figure below. What is the minimum speed the rock can have without the string becoming "slack"? (The rock is traveling in vertical circle. Assume that m = 1.6 kg and r = 0.48 m.)

A bicycle wheel of radius 0.2 m is spinning at a rate of 70 revolutions per minute.

Find the gravitational force of the Sun on Jupiter.

Uranus makes one complete orbit of the Sun every 83.8 years. Calculate the radius of the orbit of Uranus. Hint: It is a very good approximation to assume this orbit is circular.

A jogger is running around a circular track of circumference 480 m. If the jogger has a speed of 11 km/h, what is the magnitude of the centripetal acceleration of the jogger?

Speed of a satellite orbit (physics problem)? What is the speed of a satellite in a geosynchronous orbit about Earth? _________m/s Compare it with the speed of the Earth as it orbits the Sun. _________m/s

A sphere of mass 85 kg is attached to one end of a rope as shown in the figure below. It is found that the rope does an amount of work W = 8030 J in pulling the sphere upward through a distance 9.6 m. Find the tension in the rope.

i can not seem to find who the Fictional Character Justice Johnson is, i don't even see it anywhere in my book?

A crate of mass 59 kg is pushed across a level floor by a person. If the person exerts a force of 30 N in the horizontal direction and moves the crate a distance of 12 m, what is the work done by the person?

A crate of mass 29 kg is pushed up a ramp by a person as shown in the figure below. The person pushes the crate a distance of 25 m as measured along the ramp. Assume the crate moves at constant velocity. Assume the coefficient of kinetic friction between...

A car of mass 1,700 kg is initially traveling at a speed of 25 m/s. The driver then accelerates to a speed of 35 m/s over a distance of 500 m. Calculate the change in the kinetic energy of the car.

A rock of mass 0.086 kg is thrown upward with an initial speed of 13 m/s. Find the work done by gravity on the rock from the time it leaves the thrower's hand until it reaches the highest point on its trajectory. Hint: You do not have to calculate the roc...

You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, during which time the refrigerator moves a distance of 3.4 m at constant velocity.

Find all solutions in the interval [0,360) sin(4t)=ã3/2

Solve the equation on the interval [0,360) cos^2t+2cos(t)+1=0

What responsibilities do patents have for their children's health?

A U-tube contains two fluids with densities ρ1 = 1070 kg/m3 and ρ2 = 595 kg/m3 as sketched below. What is the difference d in the heights of the top surfaces of the two fluids?

A bucket is filled with a combination of water (density 1,000 kg/m3) and oil (density 700 kg/m3). These fluids do not mix. (The oil will float on top of the water.) If the layer of oil is 63 cm tall, what is the pressure at the interface between the oil a...

A syringe has an area of 1.4 cm2 at its barrel and then narrows down to an area of 0.08 mm2 at the needle end. If a force of 5.5 N is applied to the syringe, what is the force produced at the tip of the needle?

You want to design a helium-filled balloon that will lift a total payload of 1225 kg. What volume of helium is needed to just barely lift this payload?

Two metal blocks are attached by a cable as shown in the figure below and are submerged at rest near the surface of a lake. If the volumes are V1 = 2.1 m3 and V2 = 1.1 m3, what is the total buoyant force on the two blocks?

Water is flowing through a pipe (area 4.0 cm2) that connects to a faucet adjusted to have an opening of 0.57 cm2. If the water is flowing at a speed of 5.3 m/s in the pipe, how long does it take for water from the faucet to fill a bucket of volume 0.11 m3...

How much heat is required to raise the temperature of a 4.3-kg block of steel by 48 K? (The specific heat of this steel is 450 J/kg · K.)

An ice cube of volume 17.7 cm3 is initially at a temperature of -19.3°C. How much heat is required to convert this ice cube into steam?

You drop 378 g of solid ice at −35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice all melts, and the entire system comes into thermal equilibrium. Find the final temperature of the system.

If you combine 34 kg of ice at 0°C with 80 kg of steam at 100°C, what is the final temperature of the system? °C

The intensity of sunlight at the the top of the Earth's atmosphere is about 1350 W/m2. (The intensity at the surface of the Earth is somewhat smaller due to absorption and reflection by the atmosphere.) What is the total power emitted by the Sun?

How do you find the exact value of sin 5pi/8?

Give: a=alpha B=beta csc a= 2 pi/2<a<pi secB=-3 pi/2<B<pi 1)find sin(a+B) 2)find tan(a-B) 3)cos B/2 4)sin a/2

A cylindrical carnival ride is spinning with a frequency of 0.5 Hz in a circle of radius 3 m which allows a 60 kg person to stick to the side of the ride as it spins. T = 2s v = 9.42 m/s A) Find the normal force exerted on the person. B) What...

A block of weight 20 N is pushed with a force of 30 N through a horizontal distance of 5 m using a stick which is at an angle of 37° from the horizontal as shown. The coefficient of kinetic friction µk between the table and the block is 0.25. For your own...

Hello,Umm I need Alot of help on this problem:Emma runs for 18 minutes out of the 45 minutes she spends exercising each morning.One morning she spends 70 minutes exercising.If her rates stay the same how many minutes will she spent running>PLEASE HELP A.S...

Sorry if I may be bugging you,but this homework is veryy hard for me!Karen gets 6 out of every 8 questions on a test correct.If she gets 27 questions correct,how many questions are on the test?

I need help with listing two ways that single - celled fungi are different from bac-terial cells??? I'm so clueless I'm begging anyone to help me thanks

Baseball 0.14 kg moving at 35 m/s. Momentum of the ball? this should be easy b/c i know p=m*v but i get 4.9 kgm/s and it's wrong.....

The Commplement of angle v 52 more than angle v. find the measure of angle v.

A block of aluminum with a mass of 2.6 kg is at 13C and comes in contact with a hot block of copper with a mass of 10.2 kg at 93C. What is the equilibrium temperature in Celsius degrees? caluminum = 0.22 kcal/kgC ccopper = 0.093 kcal/kgC

Electrons on a radio broadcasting tower are forced to oscillate up and down an antenna 535,000 times each second. Show that the wavelength of the radio waves that are produced is 561 m.

i need to write a story for English and i have to use seven comma rules along with my 20 vocabulary words. abomination blanched conjure contentious contiguous corroborate dally defamation enthrall evasive imperceptible inaudible inquisition licentious pro...

How do I simplify -9-(12-3x)

How do I simplify -(5x+5)-4+8x

Can you please check my answers? Thank you! 18 out of 25 people love chocolate what percentage of people do not love chocolate? I got 28% 15% of the Chemistry class did not pass their chapter 7 test if the class has 38 students how many students did not p...

"Was the conflict over the Red River Settlement inevitable? Provide reasons for your answer." <- exact

What is an equation in point-slope form for the line perpendicular to y=2x+13 that contains (8,-4)?

Line DF bisects angle EDG. Find the value of x. Line EF has 9x+114. Line FO has 15x. angle FDG has 32 degrees.

In the rhombus, angle 1=15x, angle 2=x+y, and angle 3=30z. Find the value of each variable.

6/z-3=8/5 help please.

The vertices of a triangle are P(-3,8), Q(-6, -4), and R (1, 1). Name the vertices of R (smaller letters)y-0 (triangle PQR). A. P'(-3, 8), Q'(-6,-4), R'(1,1) B. P'(-3,-8), Q'(-6,4), R'(1,-1) C. P'(3,-8), Q'(6,4), R'(-1,-1) D. P' (3,8), Q'(6,-4), R'(-1,1)

In triangle ABC, m<A=71, m<C=41, and BC=96. To the nearest tenth, what is AB?

where did major general William Rufus Shafter stay while he controlled the war? PLEASE HELP!!!!!!

B. Could non-polar nitrogen molecules and polar water molecules form bonds with one another? if so, what kind? C. Given your answer to B above, do you think that there is a great deal of N2 dissolved in the oceans, a small amount, or none at all?

37. Lake Michigan is a very large, very deep body of water, located in a region of the United States that gets quite cold in winter. On the coldest day of last year, what was the temperature at the bottom of the lake. Explain your answer in terms of densi...

39. Explain why sweating cools you down in terms of molecular kinetic energy. 40. You take a pizza out of the oven and let it cool briefly. When you bite into it, the crust is not too hot but the cheese burns your mouth. Explain why this happens in terms...

41. How much heat energy must you use to raise the temperature of 100 grams of water from 60C to 70C. Show your calculations. 42. You have a pot of 100C liquid water. If you add heat to the water, will the temperature start to raise at once? why or why no...

Please identify the acid and the base in this equation. HClO + NaOH = NaClO + H2O Thank you!

25. Which of the two reactions, A or B is a neutralization reaction? Explain why. A. HBr + H2O = Br- = H3O+ B. HClO + NaOH = NaClO + H2O 26. A. Look at the reaction again. when this reaction is reversed. Br- + H3O+ = HBr = H2O what substance is the acid,...

Hemoglobin is the oxygen carrying molecule of red bloods and contains 4 atoms of iron per molecule of hemoglobin. A sample of hemoglobin weighing 13.4 g contains 45.6 mg iron. What is the molecular mass of hemoglobin? I'm unsure of where to begin with thi...

Experimentally the ionization energy of hydrogen is 1312.2 kJ / mol. What would be the wavelength (nm) of a photon with enough energy to ionize one atom of hydrogen? They give the equation E=hcR but those are all known constant values and none include mol...

I just need a definitive answer because I've searched everywhere and it's made me second guess my original answer. How many valence electrons does copper have? I thought it was one but now I'm unsure. I know it's electron configuration is [Ar]4s1 3d10, so...

What is the percent by mass of hydrogen in aspirin C2H8O4?

What is the mass of 1.00 mol of sodium hydrogen carbonate?

find the mass in grams of 1.40x10^23 molecules of n2

Which expression represents the difference of (3y+2)-(y-1)? I put 2y+ 3 for my answer.

1400= 2/5x X= 7000 I took 1400 times 5

An annual pass covering entrance fees to more than 2000 national parks cost $80. If the total income from the annual passes is $12,800 in one month. Write the equation and solve it. For my equation I put 12800p=80

A true crab has 4 fewer than twice the number of legs that a hermit crab has. The hermit crab has 6 legs. How many legs does the true crab have? I put for the equation 4c =6 *2 I am confused

The sum of an integer and the next greater integer is at the most 13. Write an inequality to find the lesser integer and solve for the lesser integer. My answer n+n+1 <_ 13 n<_6

Salinity of the ocean A)is generally very low B)changes with climate C)decreases with increase in temperature D)increases where a river meets the ocean I think its A but I'm not sure I just want to make sure.

Answers

The following answers were posted by visitors named Sierra.

Hii social studdies is kind of hard!And yes i do do 8th grade social stuudes

I wish i could help u but i have the same prob. sorry

grass:lawn::toss:throw

there are two vectors in quadrant three one with a magnitude of 31.0N and has a direction of 117degrees in the negative direction from the x axis the other has an unknown magnitude and unkown theta in the positive direction starting from 90 degrees

Then is it number 3?

There is stuff about alabama. "I have a dream that one day, down in Alabama, with its vicious racists, with its governor having his lips dripping with the words of interposition and nullification; one day right there in Alabama, little black boys and blac...

Well is it number 3?

What is the minimum speed the rock can have without the string becoming "slack"? (The rock is traveling in vertical circle. Assume that m = 1.6 kg and r = 0.48 m.)

In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.0 1011 m, with a period of 1000 days. Find the mass of the star.

(1.48 cg) + (0.347 g) . Answer in units of g

there's no question, just a bunch of information about the situation

thank you so much! super helpful i didn't realize i was overlooking the radius of earth!

Thank you so much for your help I really need to know that

2x = 3(1/3x + 6) 2x = x + 18 x = 18

thank you for your help

I say tues at 1am

The answer is B because, she is creating and selling something herself.

The third one would be Serbia.

In 26. The reaction is Br- + H3O+ = HBr + H2O. Not Br- + H3O+ = HBr = H2O! Im sorry!

7500J = KE1 + KE2

7500J=1/2(M2V^2) +1/2(1.5M2)(V^2) 7500J=1/2 (M2V^2+1.5M2V^2) 15000=M2V^2+1.5M2V^2 15000= X+1.5X 15000=X(2.5) 6000=X 6000 = X = M2V^2 1/2(6000) = KE 3000 = KE TOTAL PE (7500J) - KElargerobject(3000) = 4500J (KE smaller object)

Wait, what's planck's equation??

Ok that's what I thought! So my answer should be 182.45 nm, yes?

Because I had to convert kJ to J So I did: 1312200/2(6.022x10^23) 6.626x10^-34(3x10^8)/ans and then that answerx 10^9 to convert to nm Where did I go wrong because that answer wasn't correct =(

That's very helpful! Thank you!

72 is my answer

6.25 percent is my answer Thanks a lot for helping me

I really don't understand this problem? Is there a simpler way to do this? Thanks

I got 5.6 Thanks

Is the answer x= 3500

Thanks, I got 160

Thanks for breaking it down.

I believe it is 15•12 because there are 15 red and for ever red there is 12 so just do 15•12 and that =180 hope it helped :3

The answer is C not A

@mariana do you know the rest of the answers ?

Thats what Im confused about I have to explain WHY the above equation is incorrect, in complete sentences. Before, I asked why this is wrong, the question states Nelson says the equation to find how many cookies are in each bag is 4*c=36. Nelson is wrong....

Write the word form and the value of the underlined digit 76,239 the 6 is underlined

A number is multiples by 6 and that product is added to 3 the sum is equal to the product of 3 and 11 find the number

Dipper pines is right I just got 100% thank you

(10 in):(150 ft)=(10 in):(150*12 in)= 1:180

you guys are both right. #5 could be bothA or C.. just pay attention to the actual answer and not the letter because they are switched around. 5. is -2x^3-6x^2+9x

it is not A and C but I think it is D.

Thx I got them all correct

Get a life u kids and mind your own business

AnonK got me a 100%

Soggywaffles was right

Diana is correct

1. What is the altitude of this cylinder: B ==> C? ANSWER = B 2. What is the total surface area of this cylinder? ANSWER = C 3. What is the best approximation of the total surface area of this cylinder? ANSWER = A 4. A cylindrical container's lateral surf...

1.B 2.D Totally a 100%

4 is C took it c for 2018

I got ALINEOFCHORUSGIRLS

@Ms. Sue I have already googled a whole bunch and I can't find an answer that makes sense. The only thing that I can think of that made Oklahoma more diverse was the acceptance of other races such as, african americans, asians, mexicans, etc. However I di...

@Ms. Sue Okay so this one website talks about how we started out as just oil and agricultural and then we added in energy, gas, a aerospace sector, a biotechnology sector, and some other things. Is this where I need to be looking at?

Or would it be about the Mission control which is also located in Houston. Mission control is the place that handled all U.S. space flights after the spacecraft had been launched from Cape Canaveral.

@Anonymous$$$ (or anybody else) Do you have the rest of the Unit 7 Test? I'm struggling so bad with this and I REALLY need to pass

One of them is incorrect

I got an 100 thanks!!

I just want to confirm that this site doesn't represent a "cheating" site,its a site where you put your answers and get proof read,answers checked,and compared!!

What is the difference of two numbers is 72 and their quotient is 10?

Y’all are annoying can u just give the answer I’m trying to find answer

West point THAN YOU I was majorly confused I read the prompt but seeing students all say stars? It threw me off track

Ok y’all these are fr the answer I used sum1 else and I got5/16 C C D B D C A D B C C D B B A B Essay Essay Essay

Honestly, I don't know the answer

Nitrogen is bonded with another nitrogen atom via a triple bond. Therefore it shares 3 electrons. Carbon forms 4 covalent bonds and it is attached with one Cl atom via a single bond. Therefore 4 electrons are shared in this compound. Si also shares 4 elec...

Nottt lyingggg C B B C D B C B C B A B B D D B A D C C C D B D D B A, b, d A If these are wrong for ur test then that means the teachers mixed up the test but I got 15/30 from using Rex and these are all the right answers

my test is 24 questions smh

A. The idea for the scholarship came from a prison-school book group called Exercises in Empathy, a Palma School program. B. The program was started by Jim Micheletti, a teacher at Palma, who said the students and the incarcerated individuals would often...

Just took the test made a 52 hope these are right if not then we have different questions then B D A C B A A A C B D A A C C C D A A B C

What does force up slope? Do you have a free-body diagram to better explain your forces?

@gojo Ill do the answers later

1. B The Stamen 2. C Pollen 3. B The production of pollen 4. C Gametophyte 5. C Bees will start to avoid this area because of predation (Ill Post The Rest Later This Is For The 13 Answer Test)

3*a-4-(5)≤0 Pull out like factors : 3a - 9 = 3 • (a - 3) Divide both sides by 3 Add 3 to both sides a ≤ 3