5. The brakes on a car do 240,000 J of work stopping the car. If the car travels 20m while the brakes are being
applied, what is the force the brakes exert on the car?
W
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d =

While listening to operatic solos, musicians process the lyrics and the tunes in separate brain areas. this most clearly illustrates the functioning of different

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds