Can you compress it? Is it a solid? Why? Think. Is anything coming out from the sponge when it is compressed.

Which of the following can be compressed

In a certain gas, a source produces 40,000 compression and 40,000 rarefaction pulses in 1 sec. When the second compression pulse is produced, the first is 1cm away from the source. Calculate the wave speed.

Does the P.E. of the spring decreases or increases when it si compressed or stretched ?

Assertion: Gas is highly compressible than solid and liquid Reason: Interatomic or intermolecular distance in the gas is comparably high.

A spring of spring constant 50 N/m is compressed from its natural position through 1 cm. Find the work done by the spring force on the agency compressing the spring.

A light spring of spring constant k is kept compressed between two blocks of masses m and M on a smooth horizontal surface. When released, the blocks acquire velocities in opposite directions. The spring loses contact with the blocks when it acquires natural length. If the spring was initially compressed through a distance x find the final speeds of the two blocks.

Why does the roots of Rhizophora come out of the ground ?