PART - 2 CH - 12 Kinetic Theory — Physics STD 11 Science — Question

A satellite is orbiting around the Earth with a speed v. To make the satellite escape, what is the minimum percentage increase in its speed?

A monkey climbs up a slippery pole for 3 seconds and subsequently slips for 3 seconds. Its velocity at time t is given by v(t) = 2t(3 - t); 0 < t < 3 and v(t) = -(t - 3)(6 - t) for 3 < t < 6s in m/s. It repeats this cycle till it reaches the height of 20m.
At what time is its acceleration maximum in magnitude?

What causes the rolling sound of thunder?

What is the unit of luminous intensity in SI system?

Should the speed of two artificial satellites of the earth having different masses but the same orbital radius, be the same?

Why are we not able to rotate a wheel by pulling or pushing along its radius?

Why does the earth impart the same acceleration to all bodies?

What is the phase difference between the displacement and velocity in a S.H.M.?

The temperature gradient in a rod 0.5m long is 80°C per metre. The temperature of the hotter end is 30°C. What is the temperature of the colder end?