Nikita

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

Questions

The following questions were asked by visitors named Nikita.

HOw did the Scopes trial mirror treds in American society during the 1920s? How did government spending during World war two affect the economic development of the West and SOuth. Please help. Thanks

17 years ago

1.What would happen to poisonous chlorine gas if protons were added neutrons were added 2. Boron is 80.20% boron -11 (atomic mass = 11.01 amu) and 19.80% of some isotope form of boron. What must the stomic mass of this second isotope be in order to accoun...

16 years ago

Discuss how successful the antiwar movement was in changing the course of the war. What methods did they use? How did the movement view the freedom and the war? Thank you for your help

16 years ago

1. COmment on what James Baldwin said of the Civil rights movement challenging the United States to rethink"What it really means by freedom, including whether freedom, applied to all Americans or to part of the population? This is what I put : With their...

16 years ago

If an object travels with positive velocity in the x-direction, can it have a negative acceleration along the x-axis at the same time? (I think it can't both should be positive- because when you draw the velocity time graph - the gradient (acc.) is also p...

16 years ago

Can the instantaneous velocity of an object at a given time instant be greater than the average velocity over a time interval that includes the given time instant? Can it be less?

16 years ago

a) Can an object accelerate if its SPEED is constant? b) Can ab object accelerate if its VELOCITY is constant?

16 years ago

An object is thrown upward by a person on a train that moves with constant velocity. a) Describe the path of the object as seen by the person throwing it b) Describe the path of the object as seen by a stationary observer outside the train?

16 years ago

Is there any point along the path of a projectile where its velocity and acceleration vectors are; a) perpendicular to each other b) parallel to each other? My ans: a) I thought its perpendicular at the peak but I didn't know how to explain it b) I though...

16 years ago

a) Why do athletes in jumping or throwing disciplines use an approaching run as part of their acceleration? b) Neglecting air resistance and aerodynamics, what would be the best angle of release in discus throwing? My ans: a) To increase horizontal veloci...

16 years ago

Two forces F1 and F2 act on ab object. It accelerates in a particular direction. Under what circumstances can you predict the direction of force F1 regardless of the specific value of Force F2? My ans: When F2 is weight but I am not sure

16 years ago

An object of mass M rests on a horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m. There is static friction between the horizontal surface and mass M. The coefficient of static frict...

16 years ago

Is f(x)=1/sqrt(x-5) continious at x=2? I know it is discontinuous at x=5 but then I got confused with the three rules. Because function is continuous if f(a) a is in the domain, limit exits, and also lim x->a f(x) = f(a)?

16 years ago

Ok so I have to find a vertical asymptote with denominator 3x^3-x-1. So then the denominator must not equal zero. But i just can't solve the cubic function i tried long division! but it didn't work

16 years ago

How do you find factors of this with long division? 2x^3 - 3x^2 + 3x -1 = 0 I just don't know how to do it because there is a coefficient in front of first term.

16 years ago

A roller coaster ride includes a circular loop with radius R = 11.6 m. What minimum speed must the car have at the top to stay in contact with the tracks? How would I go around solving this, as in what formula would I need?

16 years ago

How long would it take for the Earth to complete a full turn if a person at 49.2° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,385 km for the radius of Earth

16 years ago

A satellite orbits at an average altitude of h = 409 km. What is its orbital speed? Use REarth = 6370 km and mEarth = 5.98 x 10^24 kg

16 years ago

A roller coaster ride includes a circular loop with radius R = 13.3 m. What minimum speed must the car have at the top to stay in contact with the tracks?

16 years ago

What is implicit differentiation...as in what would be the steps in solving it. I read my textbook but it seems very confusing. 1) Differentiate both sides with respect to x 2) Realize that y is a function of x 3) Solve for y Plus the d/dx notation made i...

15 years ago

A force of 5 N causes the displacement of an object by 3 m in the direction in which the force acts. What work did the object do/has been done on the object? My ans: Work = F * Displacement =+15 J positive because it acts in the direction of the object?

15 years ago

Which of the following forces does NOT have a zero work done on the object: a)The normal force on a box that slides across a horizontal level floor. b)The weight on a box that slides across a horizontal level floor. c)The normal force on a box that slides...

15 years ago

Using L'Hopital's rule find the limit if exists of; lim x->1 (cosx)/(pi-2x) I got (sinx)/2 but i am not sure about this> Can anyone help me out

15 years ago

What is lim (t^3 + 1)/(t lnt) x->infinity

15 years ago

Find a) lim (ln x)^1/x x->infinity b) lim (x-1)^lnx x->1+

15 years ago

In a mechanical experiment with an isolated object, only Ekin and Epot of the object change. If the object accelerates from 5 m/s to 10 m/s, its potential energy has? My ans: Potential energy has decreased by a factor of 2 because kinetic energy has incre...

15 years ago

An object of mass 0.7 kg is thrown vertically upwards at a speed of 23 m/s. What is the gravitational potential energy of the object at the highest point of its trajectory?

15 years ago

Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force Fext such that the object moves with constant speed, i.e., without acceleration,

15 years ago

An object of mass m = 2.7 kg moves with initial speed vinitial = 2.2 m/s, then interacts with its environment, releasing 4.4 J of work. What is the speed of the object after the interaction is completed? My ans: I found KE initially and then subtracted 4....

15 years ago

A massless string runs around two massless, frictionless pulleys, where one pulley is attached to the ceiling, and the other is suspended with a mass m. An object with mass m = 17 kg hangs from one pulley. A force F is exerted on the free end of the strin...

15 years ago

A 0.535 kg wood block is firmly attached to a very light horizontal spring (k = 175 N/m. It is noted that the block-spring system, when compressed 5.0 cm and released, stretches out 2.3 cm beyond the equilibrium position before stopping and turning back....

15 years ago

We study water of 1.0 g/cm3 density in an open container with its surface exposed to the atmosphere. If we measure the pressure first at a depth d and find the value p1, and then at twice that depth to find p2, the two results are related in this form: a)...

15 years ago

The zeppelin Hindenburg exploded on May 6, 1937, in Lakehurst, New Jersey. The accident was due to this type of dirigible using hydrogen (density of H2, M = 2g/mol) as a gas. It carried up to 70 passengers and crew. Estimate how many passengers and crew t...

15 years ago

If I double the density of a fluid, the buoyant force on a given piece of material fully immersed in the fluid will?

15 years ago

Use the following two viscosity values for liquid water: η = 1.8 x 10-3 Ns/m2 at 0 o C η = 2.8 x 10-4 Ns/m2 at 100 o C At what temperature do you need a lesser force to pull a given glass slide with a given speed v though the water?

15 years ago

Bernoulli's equation is an expression of: the conservation of mass the conservation of total energy the conservation of kinetic energy the conservation of momentum the conservation of velocity My ans: the equation states that it should be a constant when...

15 years ago

A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.70 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)

15 years ago

Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 degrees celcius ? The freezing point for pure water is 0.0 degrees celcius and Kf is equal to 1.86 degrees ce...

14 years ago

In the reaction between H2O2 and I-, 15 mL of 0.30M KI, 65. mL of 0.10M H2O2 and 19 mL of 0.020M Na2S2O3 were mixed in a flask containing starch and buffer and the total volume was made up to 500mL with distilled water. The solution turned blue (indicatin...

14 years ago

What is the minimum volume of 2.6 required to completely dissolve 20.0 of potassium metal?

13 years ago

Identify and describe at least two ways you can structure and design the classroom environment to enhance anti-bias education and culturally relevant learning

13 years ago

Weather report in Spanish. Help!!!

13 years ago

This question is based on the following poem: Seasons are celebrations. A year's a Ferris wheel. Both honor our world's habit of spinning 'round a star. 7. Which one of the following sentences best expresses the main idea of this poem? A. The world has a...

12 years ago

This question is based on the following excerpt from a short story. Inside the bus, in his summer Class-A uniform with its brass glitter and infantry-blue shoulder cordon, Jamie Sabin was going home. Fort Benning would be a fading dream; Preston, Virginia...

12 years ago

In these four sentences, the word that’s most obviously a loaded word is? 1. Netta and Jim argued over their views of free trade. 2. Netta and Jim had different views on free trade. 3. Netta and Jim were sharply split over the issue of free trade. 4. Nett...

12 years ago

I need help on collecting information for my research paper. Thanks in advance. Prepare a 1,400- to 1,750-word paper in which you explain the interaction between hormones and behavior, and how these interactions affect the determination of gender identity...

11 years ago

I need help with my research paper please. 700- to 1,050-word paper in which you examine the concept of motivation. „h Address the following items: o Define motivation. o Identify at least two sources of motivation. o Explain the relationship between moti...

11 years ago

1. Benny is setting up fish tanks at the pet store. He has 8 angel fish, 12 tiger barbs , and 24 guppies. If he wants to have the same number of each kind of fish in every tank, what is the greatest number of tanks he can set up?

11 years ago

I don't understand how to do this problem if someone can please help me to figure it out thank you. A survey about the student government program at a school finds that of 245 students: -218 students like the program -27 students think the program is unce...

10 years ago

Force of 18000N is gerenated by the engine of traine having is wages of mass 1000kg each and 2000N is lost against.Calcute accelration $ force impaned on each wages.

9 years ago

A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat with a velocity of 10 m/s.what is the velocity of the boat?

8 years ago

A simple pendulum is oscillating with an angular amplitude 60°.If mass of bob is 50 gram the tension in the string at mean position is(g=10m/s2)

8 years ago

Work done by conservative forces change only A)PE of the system B)KE of the system C) ME of the system D)None of these

8 years ago

What are the overall effectiveness of the speech "Pearson’s address on the inauguration of the national flag of Canada" What are his persuasive goal and what arguments he uses to achieve his purpose?

8 years ago

N is a two digit number such that the number formed by reversing the digits of N is 18 less than N. If the units digit of N is 5, find its tens digit.

7 years ago

What course is suitable for these subjects?

6 years ago

Solution for sin6xcos4x dx?

6 years ago

How to find x if sin(x)=4/5 and 0<x<90

4 years ago

Which harmone is secrete by medulla

3 years ago

Answers

The following answers were posted by visitors named Nikita.

thank you for your help Ms.Sue.

17 years ago

Sorry the AntiWar movement in Vietnam...in the 1960s

16 years ago

excuse me but my teacher gave me this history assignment and he said you can use your book. My book is called Give Me Liberty,An American History by Eric Foner that's what was in the book. Before you jump to conclusions may I suggest that you think about...

16 years ago

When I use it from the book. I do not change it. My teacher said that was okay. In some classes yes, it may be considered to be plagarizing but I made sure. He is very picky. I note the page and the paragraph I got it from on my paper. Are you going to he...

16 years ago

a) "Amount" is used with mass nouns; it would be right to say "large number of people" b) "Between" - means between two. The right way to say "among four options" c) is correct - and the previous answer really was bs; why are you answering if you don't kn...

16 years ago

ok so you use the First kinematic relation: V=u+at where v is the final velocity u is the initial velocity a is acceleration t is time taken So, for this question v= 28m/s u= 0 m/s (because car was at rest) a= 5.5m/s^2 t= what you need to find out Solve f...

16 years ago

About 24% of the ordinary matter in the universe is thought to be helium produced in the Big Bang. Big bang theory supports this number...one of its major triumphs.

16 years ago

Thanks andre

16 years ago

I think you are on the wrong website

16 years ago

but isn't costheta periodic?

16 years ago

costheta decreases so the answer is B? right

16 years ago

I haven't gotten to the chapter on friction yet, so I am totally clueless...I am still on kinematics and biomechanics right now.

16 years ago

So I am guessing kinetic friction forces is the same as friction problem before, so the answer would be greater than zero and less than 90 N?

16 years ago

We aren't allowed graphing calculators, plus it a rational function

16 years ago

W = F * d and F = ma but a = 0 so i was confused

15 years ago

Ok I got -W Because I used g=-9.8m/s^2 because it is acting in the opposite direction relative to the vertical y-axis. Is this correct? What does -W mean though?

15 years ago

Ok the above diagram didn't turn out the way i expected it to. But I hope you can still understand with the description. Please help, I tried it two times but I am not getting the correct answer.

15 years ago

so its d right

15 years ago

wow I still don't understand how to do this problem. Are there any equations i need to use?

15 years ago

2,4,8,16,32,64 64 is the 6th number

15 years ago

12 years ago

Why u disagree....8line line a paper boat.

12 years ago

adrift like a paper boat

12 years ago

I think is B

12 years ago

You guys should really do your own work cause how do we know what these people are saying is true not trying to be a rab

if it was 1.1 then its Nitrogen fam my bad.

9 years ago

They affect peoples emotions

9 years ago

1:2:3:4:5

7 years ago

Hey Lucas, 36C1 * 5/ (36C5) = 0.0000924 This is giving me correct answer. I know, its very late for you. It could be helpful for someone else.

20!? thats the whole practice

4 years ago

I think its A right?

4 years ago

Anonymous is right trust him i got 100%