Answer:
M = 500 J
Explanation:
Given that,
Mass, M = 1000 g = 1 kg
Height, h = 10 m
Potential energy is given by :
P = mgh
P = 1×10×10
P = 100 J
The kinetic energy at ground = 400 J
Mechanical energy = sum of kinetic and potential energy
So,
M = 100 + 400
M = 500 J
So, the mechanical energy of the system is 500 J.
It's the "objective" lens ... the big one in the front.
Answer:
Vectors have a size and direction. Each of the existing vector quantity has a magnitude and a direction. Having direction along with the magnitude is the difference of a vector quantity from a scalar quantity. Vectors are indicates with arrows.
If you’re talking about atoms, I hope this helps
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged)
The directions arrow<span> is </span>always<span> going the wrong </span>way<span>.</span>
