Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Physics
What is the minimum work in joules needed to push a 1210 kg car 54.0 m up a 12.5 degree incline? (Ignore friction.)
1 answer
the work is the difference in potential energy (mgh):
1210 * 9.8 * 54.0 * sin12.5°
You can
ask a new question
or
answer this question
.
Related Questions
A machine’s efficiency is determined to be 60%. The input work is 3,000 joules. What is the output work?
A) 180,000 joules B)
A 17.0 kg crate is pulled a distance of 20.0 m requiring that 1210 Joules of work be done. If the job is done by attaching a
By using a pulley system, a farmer makes it easier to lift bales of hay by reducing the force needed. The energy she uses to
You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = .55. The force you exert is horizontal.
A machine’s efficiency is determined to be 60%. The input work is 3,000 joules. What is the output work?(1 point) Responses
calculate the work done required to push a car for 420 meters up an melon the force required to push the car is equal to 615n
A person raises a box with a weight of 50 newtons by 0.5 meter. How much work does the person do in this action?(1 point)
Respons
A 1.0 kg ball is bounced high in the air. What is its total kinetic energy when it reaches its highest point?
a 30.0 joules b 0
I have a few physics questions:
1. How much mechanical work is done by a weightlifter holding a mass of 100 kg, 2.0m above the
The "work function", or the minimum energy needed to eject an electron from the metal, can be expressed in several different
