the International System of Units, the fundamental units are: The meter (symbol: m), used to measure length. The kilogram (symbol: kg), used to measure mass. The second (symbol: s), used to measure time. The ampere (symbol: A), used to measure electric current.
Gravitational potential energy = mass x acceleration due to gravity x height
GPE=mgh
4620=mx9.81x8.4
4620/(9.81x8.4)=m=56.1 kg
Concave lens. These are used in making the objectives of reflection telescopes
Answer:
60 N.C
Explanation:
The box will move in the direction of the push and pull with a force of 60 N. C.
