An object is at a certain height above the ground. If the object's mass is 15 kg and its potential energy is 540 J. then at what height the object is with respect to the ground. (Consider the value of g =10 m/sz.)

A raindrop falls from a height of1 km. If the mass of this drop is 1.00 g and it hits the ground with a speed of 60 m/s. then what is the work done by the unknown resistive forces?

Consider that three charges -4 x10‘9C. +6 x10‘9C, and -8 x10‘9C are placed at the vertices of an equilateral triangle XYZ. The sides of the triangle are 40 cm each. If X1, Y1, 21 are the mid points of the sides of the triangle. then what is the work done in shifting the charges X. Y and Z to X1. Y1. 21. respectively?

What is the correct value of VCEq for the given network?

The height of a transmitting antenna located at the top ofa tower is 80m and that of a receiving antenna is 320m. If the radius of the earth is 6.4 x10'5 m. then what should be the maximum distance between them for the satisfactory communication in LOS mode?

What is the correct value of the temperature coeff‌icient, if the resistance of a field coil is 60 Q at 30°C and 80 Q at 90°C?

Recycled energy is mainly _______.

Programs such as ____ support energy conservation for electronic devices.

Pressure has an appreciable effect on the solubility of ________ in liquids.

It is typical for people in hypnotic trances to temporarily __________.

One's weightlessness in space has most to do with _______.