Mechanics | Relativity Answers

A spherical ball contracts in volume by 0.01 % when subjected to a normal uniform pressure of 100 atm .the bulk modulus of its material is ????????///////////////

A steel wire of diameter 2mm has a breaking strength of 4 into 10 raise to power 5 N what is breaking force of similar steel wire of diameter 1.5 mm ???????????????

Gravity on the moon is about one- sixth of gravity on Earth. An astronaut standing on a tower 20 eet above the moon's surface throws a ball upward with a velocity of 30 feet per second. The height of the all at any time t (in seconds) is h(t) = -2.67t^2 + 30t + 20. To the nearest tenth of a second, how long will it take for the ball to hit the ground?

a boy whirls a stone in a horizontal circle 1.8m above ground by means of a spring 1.2m long. the spring breaks and the stone flies off horizontally, striking the ground 9.1m away . find the centripetal acceleration during the circular motion?

ans:- 188m/s2

A basketball player stayed in the air for about 1 second during a dunk.

a. How high did he jump?
b. What was his vertical speed at take-off?
c. If he dunked from about 10ft away, what was his horizontal speed at take off?

A one metre long rod is placed vertically and allowed to fall to the ground.if the lower end does not slip, with what velocity will the upper end hit the ground?

A 5kg pumpkin is dropped from the roof of the school. If the school is 10 m tall, what is the final velocity of the pumpkin when it hits the ground? (if something is just dropped, what is its initial velocity? Acceleration due to gravity = 9.81 m/s2

An elevator accelerates upward at 3m/s^2 for a brief time. A 500 N woman standing on bathroom scales notices the reading is not what she expected. What do the scales read?

which develops power P coriolis force?

A steel wire of 1 m long and 1 mm sqaure in area of cross section . If it takes 200 N to stretch the wire by 1mm how much force will be required to stretch the wire of same area and same material and having lenght of 10 m to 1002 cm ?