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Author Question: A 1321-kg car climbs a 5.0 slope at a constant speed of 80km/s Assuming that air resistance may be ... (Read 21 times)

Medesa

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on: Jul 29, 2018
A 1321-kg car climbs a 5.0 slope at a constant speed of 80km/s Assuming that air resistance may be neglected, at what rate (in kW) must the engine deliver energy to the drive wheels of the car?
 
  A) 25 kW B) 48 kW C) 287 kW D) 38 kW

Question 2

One unusual aspect of dark matter is
 
  A) it exerts no gravitational force.
  B) it moves faster than lightspeed.
  C) it exerts a new kind of fundamental force, never observed before.
  D) it does not interact with electromagnetic radiation.
  E) its gravitational force pushes (or repels) instead of pulling.


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olderstudent

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


Medesa

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

parshano

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Reply 3 on: Yesterday
Wow, this really help

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