There are three solids made up of aluminum, steel and wood, of the same shape and same volume. Which of them would have highest inertia?

A bus and car have the same momentum .Which of them has greater kinetic energy?

Two sphere are of same mass and same external radius, one is solid and the other is hollow. Which one of them has larger moment of inertia about its diameter?

At a same temperature, hydrogen is more soluble in water than helium. Which of them will have a higher value of k_H and why?

Take three test tubes .Fill in 3/4th of eacg with water.Label them A,BandC.Keep a snail in test tube A,a water plant in test tube B and in C ,Keep snail and plant both.Which test-tube would have the highest concentration of CO2?

Two spheres are made of same metal had and have same mass. One is solid and the other is hollow. When heated to the same temperature, percentage increase in diameter will be

Two wires of equal lengths are bent in the form of two loops. One of the loops is a square shaped whreas the other loop is circular. These are suspended in a uniform magnetic field and the same current is passed through them. Which loop will experience greater torque? give reasons.