Monikalimbu Monikalimbu

01-05-2019
Physics

contestada

the value of efficiency is never 100% or more in practice. why

Respuesta :

MuhammadSaqib MuhammadSaqib

01-05-2019

Answer: Because of presence of friction in most cases as friction exists in ever machine/body, so whenever it works, friction causes heat and sound energy as well, hence, proving that a system cannot be 100% efficient due to friction.

Answer Link

Otras preguntas

A store has a sale with 30% off every item. When you enter the store, you receive a coupon that states that you receive an additional 30% off. Is this equal to

What is 52,067 in expanded form?

An astronaut is said to be weightless when he/she travels in a satellite. Does it mean that the earth does not attract him/her?

{8,2}and {6,-1} what’s the answer

Who invented Iphones

According to Newton's first law of physics, what will a bowling ball do as it rolls down the bowling alley? O A. accelerate rapidly slow down considerably OB. О

The Earth orbits a much larger Sun. Use the relationship between size (mass) and gravity to explain why Earth orbits the Sun and not the Sun around the Earth.

Alice put identical bean seedlings in paper cups with good soil. She covered each cup with a different transparent plastic -clear, red, green, and blue. She set

MULTIPLE CHOICE QUESTION 1 y a scale factor of 2, then image a reduction or ment? What are the coordinates of R? (2, 3) (-1, -3) (4, 1 Rewatch Submit what is th

There are 6 times as many dogs as cats . If the total number of dogs and cats is 21 , how many dogs are there?