2. Which of the following is an example of work being done on an object? A prism scatters ultraviolet light into visible light. A box rests on the floor. A man pushes a couch across the room. Water in a pot changes into steam
2 answers:
A man pushes a couch across the room is the answer!
The answer is the man pushing the couch against the floor because he is using his force to move an object. If I understood the question correctly, and I think I did. Then the answer must be C
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Answer:
a).
b).
c). Δ
Explanation:
ΔE=kinetic energy
a).
b).
c).
net work= EkA+EkB
Answer: 4.7rad
Explanation:
Angular displacement =s/r
Where s=distance traveled
r=radius
Angular displacement =141m/30m
Angular displacement =4.7rad.
Answer:
B) Energy can change from one form to another
Explanation:
It goes from electrical energy from the mains into motion, light and sound
F e d b c a
A synthesis reaction forms one product from two reactants.
