Question

Notify Me Bookmark

(a) A ball is attached to a string of length L = 15.2 cm and suspended from the ceiling, as shown in the figure. A uniform electric field points to the right in the figure. When θ = 14.9∘, the ball is in equilibrium. Find the net charge on the ball (in μC). μC (b) What If? If the electric field is suddenly turned off, what is the speed of the ball at the bottom of its swing (in m/s)? m/s

(a) A ball is attached to a string of length L = 15.2 cm and suspended from the ceiling, as shown in the figure. A uniform electric field points to the right in the figure. When θ = 14.9∘, the ball is in equilibrium. Find the net charge on the ball (in μC). μC (b) What If? If the electric field is suddenly turned off, what is the speed of the ball at the bottom of its swing (in m/s)? m/s

Image text
(a) A ball is attached to a string of length L = 15.2 c m and suspended from the ceiling, as shown in the figure. A uniform electric field points to the right in the figure. When θ = 14.9 ∘ , the ball is in equilibrium. Find the net charge on the ball (in μ C ). ◻ μ C (b) What If? If the electric field is suddenly turned off, what is the speed of the ball at the bottom of its swing (in m / s )? ◻ m / s

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

A ball is attached to a cord of length L, which is tied to a frame attached to a truck bed as shown in figure (a), below. The ball-truck system is initially traveling to the right at constant speed vi, with the cord vertical. The truck suddenly stops when it undergoes an inelastic collision with a low wall as shown in figure (b), below. The suspended ball swings through an angle θ. a a (i) b (i) (a) Show that the original speed of the truck can be computed from vi = 2 gL(1−cos⁡(θ)). When the truck stops, the ball begins moving like a -- Select--- ∇. The truck's initial velocity can be derived using ---Select-- . Implementing this derivation method results in which following equation? 12−mvi2+mgL = 0+mgLcos⁡(θ)12−Lvi2+0 = 0+mgL(1−cos⁡(θ))12−mvi2+mg(−L) = 0+mg(−Lcos⁡(θ))12−Lvi2+mgLcos⁡(θ) = 0+mgL Solving this equation for vi gives vi = 2 gL(1−cos⁡(θ)). (b) If the wall is still exerting a horizontal force on the truck when the hanging ball is at its maximum angle forward from the vertical, at what moment does the wall stop exerting a horizontal force? somewhere between the maximum angle forward and the lowest point of the ball the lowest point of the ball somewhere between the lowest point of the ball and the maximum angle backward the maximum angle backward never A ball is attached to a cord of length L, which is tied to a frame attached to a truck bed as shown in figure (a), below. The ball-truck system is initially traveling to the right at constant speed vi, with the cord vertical. The truck suddenly stops when it undergoes an inelastic collision with a low wall as shown in figure (b), below. The suspended ball swings through an angle θ. a a (i) b (i) (a) Show that the original speed of the truck can be computed from vi = 2 gL(1−cos⁡(θ)). When the truck stops, the ball begins moving like a -- Select--- ∇. The truck's initial velocity can be derived using ---Select-- . Implementing this derivation method results in which following equation? 12−mvi2+mgL = 0+mgLcos⁡(θ)12−Lvi2+0 = 0+mgL(1−cos⁡(θ))12−mvi2+mg(−L) = 0+mg(−Lcos⁡(θ))12−Lvi2+mgLcos⁡(θ) = 0+mgL Solving this equation for vi gives vi = 2 gL(1−cos⁡(θ)). (b) If the wall is still exerting a horizontal force on the truck when the hanging ball is at its maximum angle forward from the vertical, at what moment does the wall stop exerting a horizontal force? somewhere between the maximum angle forward and the lowest point of the ball the lowest point of the ball somewhere between the lowest point of the ball and the maximum angle backward the maximum angle backward never

Solution
0 0

(a) A physics lab instructor is working on a new demonstration. She attaches two identical iron spheres with mass m = 0.180 g to strings of length L as shown in the figure. Both spheres have the same charge of 6.80 nC, and are in static equilibrium when θ = 5.25∘. What is L (in m)? Assume the strings are massless. m (b) What If? The charge on both spheres is increased until each string makes an angle of θ = 10.5∘ with the vertical. If both spheres have the same electric charge, what is the charge (in nC) on each sphere in this case? nC
Solution
0 0

A small 1.45 g plastic ball that has a charge q = 1.35 C is suspended by a string that has a length L = 1.00 m in a uniform electric field, as shown in the figure. If the ball is in equilibrium when the string makes a θ = 9.80∘ angle with the vertical, what is the electric field strength E? E = N/C
Solution
0 0