A.
Because you increase the concentration of the reactants, it means that there are more molecules of the reactants present in a smaller amount of space.
This being the case, there is a higher chance that these molecules will collide with enough energy to overcome the activation barrier.
The other ones are completely wrong, but if you would like an explanation as to why they are, just ask :)
- The work done by the pump is 13475 J.
- The power of the pump is 385 W.
<u>Explanation:</u>
When a force causes a body to move work is being done on the object by the force. Work is the measure of energy transfer when a force moves an object through a distance. The work done is the product of mass, gravity, and height.
Work done = m * g * h
= 55 * 9.8 * 25
Work done = 13475 J.
Power is defined as the rate of doing work with time.
Power = work done / time
= 13475 / 35
Power = 385 W.
We have discovered 786 planets. Most of which were only recently discovered.
Answer:
It is independent of the path of the body and depends only on the starting and ending points.
Explanation:
In Physics we define a conservative force as a force that is independent of the path of the body and depends only on the starting and ending points.
For conservative forces we can write;
KEi + PEi = KEf +PEf
where;
KEi= initial kinetic energy
PEi= initial potential energy
KEf= final kinetic energy
PEf= final potential energy
This equation is known as the principle conservation of mechanical energy . It applies only to conservative forces where friction is negligible. The term KE + PE is also known as the total mechanical energy of the system.
Answer:
mass= 0.1993 kg
Explanation:
Using the formula c = Q / (mΔT)
