Other Physics Answers

a hydrogen molecule of mass 3.3×10 raise to power of -27kg is moving with velocity 1.7×10×10×10m/s.calculate it's kinetic energy

A 0.10mm diameter glass tube is dipped into a pool of ethanol. To what height above the level of ethanol in the pool will the liquid in the capillary tube rise

A 2.6 kg object is tied to the end of a cord and whirled in a horizontal circle of radius 3.3 m completing one revolution in 7 seconds. Determine the velocity of the object to one decimal place.

If the spring constant is 30 N/m and a spring is stretched by 0.3m, how much force has

been applied

Two men, of mass 100 kg each, stand on a cart of mass 300 kg. The cart can roll with negligible friction along a north-south track, and everything is initially at rest. One man runs towards the north and jumps off the cart at a speed of 5.0 m/s, relative to the cart. After he has jumped, the second man runs towards the south and jumps off the cart, again with a speed of 5.0 m/s relative to the cart.

Calculate the speed and direction of the cart after both men have jumped off. 

1. A cue ball on a pool table is hit with the cue stick in one corner of the table and rolls to the opposite corner.  The mass of the ball is 0.17 kg and it starts rolling at a speed of 3.6 m/s.  By the time it reaches the opposite corner of the table, the ball has a kinetic energy of 0.65 J.  Determine the following: (a) the initial kinetic energy, (b) the speed of the ball at the opposite corner of the table, and (c) the work done by friction as the ball rolls from one corner to the other.

(a) A sphere has a surface uniformly charged with 1.00 C. At what distance from its center is the potential 5.00 MV? (b) What does your answer imply about the practical aspect of isolating such a large charge?

1. Ball thrown at 45° with intial velocity of 25m/s.

Find the

A. Initial velocity

B. Final velocity

C. Acceleration (m/s²)

D. Time ( s )

E. Distance ( m )

1. Ball thrown at 30° with intial velocity of 20m/s.

Find the

A. Initial velocity

B. Final velocity

C. Acceleration (m/s²)

D. Time ( s )

E. Distance ( m )

Compare the duration between a micro year and a 1minute TV commercial and a micro century and 60 minute TV programme.