Answer:
Energy = 21.42 Joules
Explanation:
Given the following data;
Charge = 2.38 C
Potential difference, v = 9 V
To find the energy gained;
Mathematically, it is given by the formula;
Energy = charge * potential difference
E = 2.38 * 9
E = 2.38 * 9
E = 21.42 Joules
There is no acceleration in the horizontal direction because the speed in that direction is constant. So it stays at zero.
Answer:
Weight measurement at poles will be slightly more than at equator.
Explanation:
Firstly earth bulges at equator. This makes the body far from earth center at equator than poles. Secondly, the surface centrifugal forces of earth due to rotation also plays vital role in disturbing the gravity value. The centrifugal forces cancel the effect of gravity more at equator than at poles.These factors combine to create difference of about 0.5% in gravity values at pole and equator.
gravity at pole=9.832 m/s^2
gravity at equator=9.780 m/s^2
Answer:
The work done to lift the counterweight equals the potential energy acquired
Explanation:
since this is vertically applied force on the counterweight, and the distance the force is displacing the counterweight is in the same direction as the applied force, it equals the gained potential energy
