Answer:

Explanation:
Consider two particles are initially at rest.
Therefore,
the kinetic energy of the particles is zero.
That initial K.E. = 0
The relative velocity with which both the particles are approaching each other is Δv and their reduced masses are

now, since both the masses have mass m
therefore,

= m/2
The final K.E. of the particles is

Distance between two particles is d and the gravitational potential energy between them is given by

By law of conservation of energy we have

Now plugging the values we get



This the required relation between G,m and d
Answer:
Explanation:
Given
Weight of Person 
Cave is
deep
Breaking stress 
Net Force on Person




The shortest time such that the person can be taken out of cave

where
h=distance moved
t=time
a=acceleration



<em>number of waves that pass a given point in one second is called <u>frequency..</u></em>
How tall is the building?
u need to divide the height by 1.6 to get your answer
When you brew a coffee you're creating a Solution.
Tiny particles from coffee grounds, or solutes, are dissolved in water, the solvent.