Physics
Physics, 21.09.2019 19:30, javontiye226

a ramp 20 m long and 4 m high is used to lift a heavy box. a pulley system with 4 rope sections supporting the load is used to lift an identical box to a height of 4 m. if friction is ignored, the ramp requires a to lift the load.

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 22.06.2019 21:20, aniyahrhs1213
The strong nuclear force acts over a small distance than the electrostatic force. true or false
Answers: 2
image
Physics, 22.06.2019 23:00, genyjoannerubiera
Why does gravity have a lesser than grater effect on higher altitudes?
Answers: 2
image
Physics, 23.06.2019 08:30, rocky8875
[05.02] what is the best explanation of the kinetic molecular theory as it relates to the energy of the molecules in the states of matter? (1 point) the molecules in a gas have greater kinetic energy than those in a liquid, which in turn have greater kinetic energy than the molecules in a solid. kinetic energy cannot be created nor destroyed, and, as a result, all states of matter have the same kinetic energy. the molecules in a gas have greater kinetic energy; therefore, they are more tightly packed than the molecules in either a liquid or a solid. the molecules in gases and liquids, in constant motion, have greater kinetic energy than those in a solid, which do not move or vibrate because their position is fixed.
Answers: 2
image
Physics, 23.06.2019 12:20, lindseyklewis1p56uvi
The lid of a pressure cooker forms a nearly airtight seal. steam builds up pressure and increases temperature within the pressure cooker so that food cooks faster than it does in an ordinary pot. the system is defined as the pressure cooker and the water and steam within it. if 2.0 g of water is sealed in a pressure cooker and then vaporized by heating, and 5655 j must be added as heat to completely vaporize the water, what is the change in the system’s internal energy? answer in units of j.
Answers: 3
Do you know the correct answer?
a ramp 20 m long and 4 m high is used to lift a heavy box. a pulley system with 4 rope sections supp...

Questions in other subjects:

Konu
Chemistry, 19.04.2021 16:50