Physics, 24.04.2020 22:10 gracie0818
A 50.0 kg circus performer jumps from a platform into a safety net below. The net, which has a force constant of 5.0 × 104 N/m, is stretched by 0.40 m. If the unstretched net is positioned 1.00 m above the ground, what is the height of the platform above the ground? (Ignore the effects of air resistance.)
Answers: 2
Physics, 21.06.2019 17:00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 22.06.2019 16:00
An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.
Answers: 1
Physics, 22.06.2019 20:40
Newtons view of arrangement of the universe. don't copy from anywhere.
Answers: 3
A 50.0 kg circus performer jumps from a platform into a safety net below. The net, which has a force...
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