Physics

Question 1

Conversion of celsius to fahrenheit and

Answer 1

C-0/100=k-273/373-273=f-32/212-32

Question 2

If v. not is the escape velocity from the Earth when a projectile is fired from the surface of Earth then the escape velocity if the same projectile is fire from the Earth centre is

Answer 2

{√3/√2}v.

Question 3

Newton law of cooling is used for

Answer 3

For o calculating specific heats of liquids

Question 4

Potential energy formula for gravitation

Answer 4

GMm/r not r2

Question 5

Formula for gravitational potential

Answer 5

-GM/r

Question 6

A wooden block is floating in water 40% volume outside of the water now the arrangement kept in an elevator going upward with acceleration g the block will
1. sink or
2float at the surface
3.flat with % on water

Answer 6

The body will continue flowing with 40% above the water surface