Question

2. In the experiment the frictional force was not considered constant. What are the reasons that...

2. In the experiment the frictional force was not considered constant. What are the reasons that the frictional force was not constant?

3. If the mass of the cart is 10 g (1 kg = 1000 g), how much is the initial height in position 1? (v=0, Ug=0.100J, Ek=0J, Etot=0.100J)

4. If the mass of the cart is 10 g (1 kg = 1000 g), how much is the normal force on the cart in position 3? (r=0.500m, Ek=0.040J, Ug=0.040J, Etot=0.100J)
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
I had a lab where we had to find the frictional force of a system. A...
I had a lab where we had to find the frictional force of a system. A cart was let go at the top of a 15 degree incline and the time it took the cart to reach the bottom of the incline was measured. I need to find the change in energy of the system. The distance is 90cm. The velocity of the cart was 0.517 m/s. The force it took for the cart to go up was 2.08 N...
The combination of an applied force and a frictional force produces a constant torque of 40...
The combination of an applied force and a frictional force produces a constant torque of 40 N·m on a wheel rotating about a fixed axis. The applied force acts for 8.0 seconds, during which time the angular speed of the wheel increases from 0 to 700 degrees/second. The applied force is then removed, and the wheel comes to rest in 55 s. Answer the following questions. (a)What is the magnitude of the angular acceleration of the wheel while the applied...
An elevator car has a mass of 1500 kg carry 3 passengers with a total mass...
An elevator car has a mass of 1500 kg carry 3 passengers with a total mass of 330 kg. The lift operates with a constant frictional force of 2 700 N working against the motion of the elevator. How much power must the motor deliver to the elevator cart to keep it moving at a constant speed of 2.4 ms-1 ? How much power would need to be supplied by the motor if it was 70% efficient?
A 2 kg mass is connected to a wall through a spring with force constant of...
A 2 kg mass is connected to a wall through a spring with force constant of 8 N/m. Using the Laplace transform method, calculate the time-dependent position of the mass, x(t) for t > 0, for the following cases: The mass is initially at rest, and then is hit at time zero with an impact described by f(t) = delta function. The mass is initially at rest, and then is hit at time t = 1 s with an impact...
6) A mass of 3 kg is attached to a massless spring with a force constant...
6) A mass of 3 kg is attached to a massless spring with a force constant 500 N/m. The mass rests on a horizontal frictionless surface. The system is compressed a distance of 30 cm from the springs initial position and then released. The momentum of the mass when the spring passes its equilibrium position is? 8660.25m/s Is this right
11.2 A mass oscillates on a spring of force constant 25.0 N/m and is subjected to...
11.2 A mass oscillates on a spring of force constant 25.0 N/m and is subjected to a damping force Fx = ?bvx , where b = 2.40 kg/s. (a) What special value of the mass m determines whether the mass undergoes underdamped oscillations, is critically damped, or is overdamped? (b) If m is eight times this special value, how long does it take for the amplitude to be reduced by 50%? What is the period of the oscillation? Plot the...
What is the magnitude of the force exerted by a spring with a spring constant of...
What is the magnitude of the force exerted by a spring with a spring constant of 447N/m, if it is stretched by 77cm? You attach a 46.8g weight to a vertical spring and let it slowly move down until it is in equilibrium. By how much, measured in cm, the spring is stretched at equilibrium if the spring constant is 24N/m? g=9.8m/ s2 What is the period of the oscillations of a mass-spring system, measured in seconds, if the mass...
A particle with mass m=1 kg is thrown vertically upward in a constant gravitational field with...
A particle with mass m=1 kg is thrown vertically upward in a constant gravitational field with an initial speed of v0=8 m/s. There is a retarding force F = - k m v2 acting on the particle where v is the instantaneous speed and k=1.5 (in SI units). The speed of the particle when it returns to the initial position is
Q1.Centripetal force is v^2/r. It is supplied by: a. the rotation b. some physical force, or...
Q1.Centripetal force is v^2/r. It is supplied by: a. the rotation b. some physical force, or else the object will move in a straight line c. it is the only force if the object is moving through a gravitational field d. none is needed if its speed is below a prescribed limit Q2. The distance of an object from planet M is D. the gravitatiolnal force on the object is F. If the distance is decreased by 1/4, what is...
A ball with mass m = 50.0 g, is sitting on a vertical spring whose force...
A ball with mass m = 50.0 g, is sitting on a vertical spring whose force constant is 120.0 N/m. The initial position of the spring is at y = 0.00 m. The spring is compressed downward a distance x = 0.200 m. From the compressed position, how high will the ball bearing rise? How high is does the ball bearing rise above the position at y = 0.00 m? What is the kinetic energy of the ball at the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT