subject
Chemistry, 22.04.2020 01:49 michaelandtammytrice

It takes 86 joules of energy to raise a box 2 meters using the pulley setup shown above.

Without the pulley, the box can be raised 2 meters using only 82 joules of energy. What could explain this 4-joule difference?

A.
When raising the box using the pulley, 4 joules of mechanical energy are broken down into protons, neutrons, and electrons.
B.
When raising the box using the pulley, 4 joules of mechanical energy are transformed into water.
C.
When raising the box using the pulley, 4 joules of mechanical energy are converted into heat energy due to friction.
D.
When raising the box using the pulley, 4 joules of mechanical energy are destroyed.

ansver
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 22:00, creepycrepes
Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
Answers: 2
image
Chemistry, 22.06.2019 05:30, sethjohnson386pbnm3x
Modern weaponry has increased the number of deaths in wars and violent conflicts.
Answers: 3
image
Chemistry, 22.06.2019 23:00, maddyleighanne
Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry
Answers: 3
image
Chemistry, 23.06.2019 00:00, familyk0jj3
How do you determine the percent yield of a chemical reaction
Answers: 1
You know the right answer?
It takes 86 joules of energy to raise a box 2 meters using the pulley setup shown above.

...

Questions in other subjects:

Konu
Mathematics, 05.10.2019 19:20
Konu
Spanish, 05.10.2019 19:20