Thermodynamics — Physics STD 11 Science — Question

This model of the atmosphere works for relatively small distances. Identify the underlying assumption that limits the model.

Two identical solid balls, one of ivory and the other of wet-clay, are dropped from the same height on the floor. Which will rise to a greater height after striking the floor and why?

During blood transfusion the needle is inserted in a vein where the gauge pressure is 2000Pa. At what height must the blood container be placed so that blood may just enter the vein? [Use the density of whole blood from Table 10.1].

What is called coefficient of linear expansion?

A particle is in linear simple harmonic motion between two points, A and B, 10cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it is:
At the end B.

The increase in the speed of a car is proportional to the additional petrol put into the engine. Is it possible to accelerate a car without putting more petrol or less petrol into the engine?

In a connected motion of two body, acceleration of both the bodies are _______.

How many times in one vibration, K.E. and P.E. become maximum?

When force acting on a body is perpendicular to direction of motion then work done is ­­­­­­­­­________.

Can the kinetic energy of a system be converted without converting it into momentum?