Question

Notify Me Bookmark

A ball is released from a height of 13 m and weighs 51 N. What is the magnitude |ΔU| of the total change in potential energy when the ball falls to the ground? |ΔU| =

A ball is released from a height of 13 m and weighs 51 N. What is the magnitude |ΔU| of the total change in potential energy when the ball falls to the ground? |ΔU| =

Image text
A ball is released from a height of 13 m and weighs 51 N .
What is the magnitude | Δ U | of the total change in potential energy when the ball falls to the ground?
| Δ U | =

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

Potential energy is given by PE = mgh Kinetic energy is given by KE = mv2 2 Figure 7: Trade in joules between potential and kinetic energy Consider the situation in figure 7, the total mechanical energy is 6 J. There is no loss or gain of mechanical energy, only a transformation from kinetic energy to potential energy (and vice versa). The ball, of mass m = 1 kg is released from rest. Answer the following questions: Question #:1 At point A:What is the potential energy of the ball? What is the height of the ball? What is the velocity of the ball at that point? -What is the kinetic energy? Question #:2 At point B, if the potential energy is equal to the kinetic energy (PE = KE = 3 J)What is the height H of the ball? What is the velocity of the ball at that height? Question #:3 At point C, the potential energy is zero. What is the kinetic energy of the ball? What is the velocity of the ball at that point? How would you describe the velocity at this particular point? Explain Question #:4 At point D, the ball is at the same height as in point A, it reaches a maximum height then stops before reversing direction. What is the potential energy? What is the kinetic energy of the ball? What happened to kinetic energy at that position? Question #:5 While the pendulum is oscillating between positions, use the words increase, decrease, or constant to describe the trend of the different forms of energies. Complete table 2 Table 2: Trend of the different forms of energy of a swinging pendulum Question #:6 Using figure 7, identify the corresponding positions A, B and C in figure 8 Discuss the different energies, and speeds of the glider on those points based on your study of the pendulum.Potential energy is given by PE = mgh Kinetic energy is given by KE = mv2 2 Figure 7: Trade in joules between potential and kinetic energy Consider the situation in figure 7, the total mechanical energy is 6 J. There is no loss or gain of mechanical energy, only a transformation from kinetic energy to potential energy (and vice versa). The ball, of mass m = 1 kg is released from rest. Answer the following questions: Question #:1 At point A:What is the potential energy of the ball? What is the height of the ball? What is the velocity of the ball at that point? -What is the kinetic energy? Question #:2 At point B, if the potential energy is equal to the kinetic energy (PE = KE = 3 J)What is the height H of the ball? What is the velocity of the ball at that height? Question #:3 At point C, the potential energy is zero. What is the kinetic energy of the ball? What is the velocity of the ball at that point? How would you describe the velocity at this particular point? Explain Question #:4 At point D, the ball is at the same height as in point A, it reaches a maximum height then stops before reversing direction. What is the potential energy? What is the kinetic energy of the ball? What happened to kinetic energy at that position? Question #:5 While the pendulum is oscillating between positions, use the words increase, decrease, or constant to describe the trend of the different forms of energies. Complete table 2 Table 2: Trend of the different forms of energy of a swinging pendulum Question #:6 Using figure 7, identify the corresponding positions A, B and C in figure 8 Discuss the different energies, and speeds of the glider on those points based on your study of the pendulum.
Solution
0 0

We have an infinitely long wire, again with linear charge density λ = 10 μC/m. We have a point charge, again with q = 75 μC. Point S is zS = 10 m away from the wire on the z-axis, point P is zP = 5 m away from the wire on the z-axis, and point T is yT = 5 m away from the wire on the y-axis. Remember that the electric field at a distance r away from a wire is E→wire = 2 kλrr^ Figure 2: Figure for Problems 3-5 3. Potential change with radial path 1 point What is the energy change from point S to point P ? 4. Potential change with angular path 1 point What is the change in energy from point P to point T along the quarter-circle path? 5. Potential change with square path 1 point What is the change in energy from point P to point T along the square path? (Next two questions) We have an infinitely long wire of linear charge density 1 nC/m. You throw a ball with charge Q = −8 C and mass m = 2 kg away from the wire with initial velocity vi = 12 m/s. The ball is initially 4 meters away from the wire. 6. Change in potential 1 point After some time the ball's velocity decreases to 6 m/s, half its initial speed. What is the magnitude of the change in potential, in volts, from the initial position to this position of the ball? 7. Maximum distance 2 points What is the maximum distance the ball gets from the wire?

Solution
0 0

Potential in a charge distribution 3 points We have a sphere with diameter d = 7 m and charge density profile ρc(r) = Ar2ω where A = 6×10−8. The change in potential energy of a charge q = 5 mC moved from a radius of r = 2.3 m inside the sphere to the very edge of the sphere was found to be −25 J. Find the value of the constant ω. (Next three questions) We have a spherical ball in a vacuum with three layers: the center and outer layers have constant charge density ρ = 0.7 μC/m3 and the middle layer is a perfect conductor. We'll define zero potential, V = 0, at an infinite distance away from the sphere. The radii are a = 0.3 m, b = 0.7 m, and c = 1 m. Figure 3: Figure for Problems 9-11 Potential at purple dashed line 1 point (a) What is the potential at r = 0.4 m away from the center of the sphere (purple dashed line)? (number 10) Potential at yellow dashed line 1 point What is the potential at r = 0.85 m away from the center of the sphere (yellow dashed line)? (number 11) Potential at green dashed line 1 point What is the potential at r = 1.2 m away from the center of the sphere (green dashed line)?

Solution
0 0