A 23.0-kg file cabinet of is sliding down a frictionless ramp for a distance of 5.00 m as shown. Use g = 10.0 m/s2. Assuming the system is cabinet+earth+ramp, match the answers with questions. ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal What is the change in gravitational potential energy (ΔUg)? (Hint: what is Δy?)                                                                                              What is the change in thermal energy (ΔEth)?                                                                                              What is the change in kinetic energy (ΔK)? A. -230 J B. 0 J C. 1150 J D. 298 J E. -1150 J F. none of the given G. -298 J

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Chapter1: Units, Trigonometry. And Vectors
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A 23.0-kg file cabinet of is sliding down a frictionless ramp for a distance of 5.00 m as shown. Use g = 10.0 m/s2.

Assuming the system is cabinet+earth+ramp, match the answers with questions.

ΔK + ΔUg + ΔUsp + ΔEth + ΔEch = Wexternal

What is the change in gravitational potential energy (ΔUg)? (Hint: what is Δy?)

                                                                                            

What is the change in thermal energy (ΔEth)?

                                                                                            

What is the change in kinetic energy (ΔK)?

A.

-230 J

B.

0 J

C.

1150 J

D.

298 J

E.

-1150 J

F.

none of the given

G.

-298 J

 

 

5.0 m
15.0°
Transcribed Image Text:5.0 m 15.0°
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