Suppose you set your watch by the sound of a distance siren, will it go fast or slow?

A man stands on the ground at a fixed distance from a siren which emits a clear sound dirung night that during day. Explain Why?

A piston of mass m divides a cylinder containing gas into two equal parts. Suppose the piston is displaced to the left to a distance x and let go Fig. Assuming the process to take place at a constant temperature, find the frequency of the piston's oscillations.

Suppose you are running fast in a field when you suddenly find a snake in front of you. You stip quickly. Which force is responsible for your deceleration?

Suppose you are riding a bike with a speed of 10 m s^(-1) relative to a person A , person A who is walking on the ground towards east. If your friend B walking on the ground due west measures you speed as 15 m s^(-1) , find the relative velocity between two refence frames A and B .

If you are walking on the moon, can you hear the sound of stones cracking behind you ? Can you hear the sound of your own footsteps ?

A man stands on the ground at a fixed distance from a siren which emits sound of fixed amplitude. The man hears the sound to be louder on a clear night than on a clear day.

Suppose your are y years odl and your mother is m years old. Write in mathematical form the statement that '' your mother is more than twice as old as you''.

Suppose you are a judge and the case under your consideration is : “Whether a car driver was exceeding a speed limit of 40 km/h before he made an emergency stop, the length of the skid marks on the road was 3m? You may assume the maximum deceleration to be 10m//s^(2) ? "

Suppose you and your friend are on the Moon. Will you be able to hear any sound produced by your friend ?

While walking across a narrow railroad track, suppose you start to lose your balance. If you start falling to the left which way do you turn your body to regain the balance ? Explain.