
a Question 1 (10 points) Power is the same as: energy work done - rate of...
1/ When a net amount of Work is done on an object (by a non-conservative force), what is the significance of the sign of the net Work to the change in that object’s Mechanical Energy? 2 /Explain why friction is not a conservative force but the force of gravity is.
Work Done by the Govtational Force bute the gravitational force G m./r into the integral equation on the previous genith Y replacing and find the work done by this force df w is the work done by the gravitational for moves away from t he gravitational force positive, negative, or zero when an object in the Earth? When it moves toward the Earth? When it orbits the Earth in a circle? Part B: Conservative and Non-conservative Forces welop and understorence...
Power in the rate at which work is done or energy is transformed. That is, Power= Energy/Time Use the energy found above and the time measured during the demonstration to calculate the power developed in the eruption. Starting Mass 4.6 lbs Max height 41 inches Time of Eruption 3.35 sec Final Mass after Eruption: 1.7 lbs Amount of Mass that left the bottle during Eruption 2.9lbs Please help me answer the above question with the results from the experiment.
Calculate the work WAB done by the electrostatic force on a
particle of charge q as it moves from A to B. Express your answer
in terms of some or all the variables E, q, L, and ?.
Constants Learning Goal: To review the concept of conservative forces and to understand that electrostatic forces are, in fact, conservative. Calculate the work WAB done by the electrostatic force on a particle of charge q as it moves from A to B....
A conservative force is one for which Select one: 1. the work done is independent of path. 2. the work done is dependent on path. 3. frictional forces are involved. 4. potential energy stored can not be recovered as kinetic energy. Question 2 Hooke's law relates the distance a spring stretches or compresses to Select one: 1. the energy stored in the spring. 2. the velocity of the spring. 3. the force exerted on the spring. 4. the work done...
Question 1 The change in electric potential energy is the negative of the work done by the electric force. the work done by the electric force. the negative of the electric force. the electric force. . Question 2 The electric potential difference is . the same as the change in the electric potential energy. the change in the electric potential energy times the charge. the charge divided by the change in the electric potential energy. the change in the electric...
The object below, with mass M is pulled in the horizontal
direction over a flat surface for a distance d, whose coefficient
of friction is uk.
2. The object below, with mass Mis pulled in the horizontal direction over a flat surface for a distance d, whose coefficient offriction is HK a. (5 points What is the total work done by friction? b. (5 points What is the change in thermal energy? 3. (5 points If both conservative forces and...
А D z Problem 3. Work done by gravity and change in gravitational potential energy In problem the box was moving in a horizontal direction, and therefore no work was done by gravity. Here, we will analyze a situation where the force of gravity has some component that points along the direction of the displacement, and therefore there is non-zero work done by gravity on the system of interest Consider a box of mass 10 kg, initially at rest, which...
QUESTION 10 Power, P, is defined as the rate at which work, W, is done, or the work divided by the time, t, over which that work occurs: P = W / t. Starting from rest, at the bottom of a flight of stairs, what is the power output for a person of mass 55 kg who runs up a flight of stairs of height 3.0 m and reaches the top of the stairs, in a time of 3.0 s,...
11. For the following be aware that work has the same units as energy (In fact work is a change in energy). Also know that the total work is always the change in potential energy + the change in kinetic energy. (Generally written E = U+T where U is the potential energy and T is the kinetic energy). In this problem, (and in general, though not ALWAYS) you may assume that potential energy is the work done by a conservative...