Physics, 15.01.2020 00:31 kekejones6321
Awagon is rolling forward on level ground. friction is negligible. the person sitting in the wagon is holding a rock. the total mass of the wagon, rider, and rock is 93.5 kg. the mass of the rock is 0.310 kg. initially the wagon is rolling forward at a speed of 0.540 m/s. then the person throws the rock with a speed of 16.5 m/s. both speeds are relative to the ground. find the speed of the wagon after the rock is thrown directly forward.
Answers: 2
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Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.
Answers: 1
Awagon is rolling forward on level ground. friction is negligible. the person sitting in the wagon i...
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