It is very important that all scientists use the metric system because it is universal - America is the only country that doesn't use the metric system, whereas in the rest of the world, metric system is used. So as not to confuse numbers and do something incorrectly, it is better to use metric system instead.
Answer:
Momentum of the object = 15 kg.m/s
Explanation:
Given
mass, m = 5 kg
speed, v = 3 m/s
momentum, p = ?
We know that the momentum is given by the equation:
p = mv
= 5 kg x 3 m/s
= 15 kg.m/s
When a force acts on a body along some path, the work done is W=F*s, where W is the work done, F is the force that is doing the work on the body and s is the path. The force doing the work has to be in the same direction, or parallel, as the path. This is called positive work. If the force and the path are anti-parallel, the work is negative. So the relationship between work and force is W=F*s.
Wavelength × frequency = speed
<span>A. Chemical energy to chemical energy</span>
