A net torque of magnitude is 600
The awnser is. 1728000 kilometers
The toxic runoff from the farms will directly enters the water bodies of the earth through the drainage system.
The emissions from the cars will go into atmosphere and will react with water and then it will enter the earth's water. So, it is not directly affecting the earth's water.
The dumping trash on roadsides do not enter the earth's water. It can enter the earth's water through rains.
The production of oxygen by trees is not pollution.
Hence, option (A) is correct.
Sodium weights 0.968 so the density is equal to 968
The gravitational force is inversely proportional to squared distance.
This means when the distance between the objects is increased, the gravitational force reduces.
1600 = k/d². where k is constant.
k=1600d²
When d is doubled, the gravitational force, F,
F = 1600d²/(2d)²
F = 400 N
