Explanation:
The machine whose efficiency is 100% is known as perfect machine .This machine is not possible in real life because every machine is affected by the overcoming friction due to which is efficiency become less than hundred percent .
Answer:
A simple pulley is a wheel with a rope that allows you to pull one end and have it lift whatever is on the other end. A modern, common example of this is a crane, often used in construction.
Explanation:
I believe the answer is D. The milky way is a spiral galaxy, You can tell just by looking at it.
Answer:
137.2 in pounds and in Newton's it's 588.399
Answer:
the wave is carrying more energy
Explanation:
trust me broski
