Physics, 07.07.2020 16:01 jessicascott120305

A small box with a mass 32.0 g is released from rest at point A, which is at the top edge of a large, hemispherical bowl. Assume that the size of the box is small as compared to the radius of the bowl so that the box can be treated as a particle. The work done by friction on the box when it moves from point A to point B at the bottom of the bowl has magnitude 0.640 J. Between points A and B, how much work is done on the rock by the normal force?1. Between points A and B, how much work is done on the rock by gravity?2. What is the speed of the rock as it reaches point B?3. Of the three forces acting on the rock as it slides down the bowl, which (if any) are constant and which are not? Explain.4. Just as the rock reaches point B, what is the normal force on it due to the bottom of the bowl?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:00, yoongnzl

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Answers: 1

continue

Physics, 22.06.2019 13:00, caleb1009

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

Answers: 3

continue

Physics, 22.06.2019 13:10, kelonmazon2492

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Answers: 3

continue

Physics, 22.06.2019 13:30, Travisbennington

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline

Answers: 1

continue

You know the right answer?

A small box with a mass 32.0 g is released from rest at point A, which is at the top edge of a large...