Answer:
the correct representation of the trough is b
When the force of air resistance on the skydiver
is equal to the skydiver's weight.
A. Chemical energy is formed when chemical bonds are broken.
Probes,and engineered unmanned space technology..
Answer:
A dimension is a measure of a physical variable.
Unit is a way to assign a number or measurement to that dimension.
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned, also known as a bare, pure, or scalar quantity or a quantity of dimension one, with a corresponding unit of measurement is the SI of the unit one, which is not explicity shown.