A nail has `2cm^(2)` at one end `1/100cm^(2)` and at the other end. A force of 1000 g wt. is applied on the first end. Calculate the pressure acting on the wall?

water enters at one end of a horizontal pipe of non-unifrom cross -section with a velocity of 0.4 ms^(-1) and leaves the other end with a velocity of 0.6 ms^(-1) The pressure of water at the first end is 1500Nm^(-2) Calculate the pressure at the other end Density of water =1000kgm^(-3)

A force of 40 N is applied on a nail , whose tip has an area of cross-section of 0.001 "cm"^(2). Calculate the pressure on the tip.

A strectching force of 1000 newton is applied at one end of a spring balance and an equal stretching force is applied at the other end at the same time. The reading of the balance will be:

A stretching force of 100 N is applied at one end of a spring balance and an equal stretchign force is applied at the other end at the same time. The reading on the balance will be

A stretching force of 1 N is applied at one end of a spring balance and an equal stretching force is applied at the other end at the same time. The reading on the balance will be

A wire is suspended by one end. At the other end a weight equivalent to 20 N force is applied. If the increase in length is 1.0 mm, the increase in energy of the wire will be

A nut is placed in a nut cracker at 5 cm from the fixed end. If the force experienced by the nut is 100 N when a force of 20 N is applied at the free end of the nut cracker, find the length of the nut cracker.

A string of length 50cm is fixed at one end and carries a mass of 200g at the other end. The string makes 5//2pi revolution per second around the verticle axis through the fixed end. Calculate (a) the tension in the string (b) the angle of incilination of the string with verticle and (c) linear velocity of the mass.

The pipe of a pop gun of length 15 cm is closed by a cork at one end a piston at the other end. When the pisotr is moved slowly and the pressure increase to 2.5 atm, the cork moves out with a pop sound. Calculate the frequency of the pop sound. The velocity of sound in air = 384 m//s