Acar moving with a velocity of 20 meters/second has 1.8 × 105 joules of kinetic energy. what is the mass of the car? a.) 4.6 × 102 kilograms b.) 9.0 × 102 kilograms c.) 1.0 × 103 kilograms d.) 1.2 × 103 kilograms

The correct answer is .

Explanation:

The expression for the kinetic energy is as follows;

Here, m is the mass of the object and v is the velocity.

It is given in the problem that A car moving with a velocity of 20 meters/second has of kinetic energy.

Calculate the mass of the car by rearranging the above expression.

Put and v= 20 m/s.

Therefore, the correct option is (B).

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide