The total amount of energy in the universe never changes, but the amount of energy available for work at any given moment varies tremendously What
best explains this change in available energy?
O A Energy can only be created through nuclear reactions
OB Energy is continually changing from one form into another.
O
C Energy is always transferred as heat.
OD. Energy is always converted with 100 percent efficiency
Answers: 1
Another question on Physics
Physics, 21.06.2019 21:40
Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
Answers: 3
Physics, 22.06.2019 18:00
Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point
Answers: 1
Physics, 22.06.2019 23:30
A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s
Answers: 1
You know the right answer?
The total amount of energy in the universe never changes, but the amount of energy available for wor...
Questions
Mathematics, 30.06.2019 15:50
Health, 30.06.2019 15:50
English, 30.06.2019 15:50
Health, 30.06.2019 15:50
History, 30.06.2019 15:50
Mathematics, 30.06.2019 15:50
Geography, 30.06.2019 15:50
History, 30.06.2019 15:50
Mathematics, 30.06.2019 15:50
History, 30.06.2019 15:50
Computers and Technology, 30.06.2019 15:50
