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A push on a 1-kg brick accelerates it. Neglecting friction, to equally accelerate a 10-kg brick, one would have to push with
A) one tenth the amount of force.
B) 100 times as much force.
C) Just as much force.
D) 10 times as much force.
E) None of these
2. A car drives west at 60 mph and then turns south driving at 60 mph for the rest of the trip. What is the direction of the average acceleration?(where we utilize the convention that north points in they direction and east points in the +direction.)
A) Southwest B) southeast C) northwest D) northeast
A Ping-Pong ball with mass 1.5 g is attached by a thread to the bottom of a beaker. Determine the diameter of the ball
Four identical charges (+2.2 ?C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
An unknown substance has a mass of 0.125 kg and an initialtemperature of 104.4°C. calculate the specific heat of the unknown substance
a skier is gliding along at 4.0 ms on horizontal frictionless snow. he suddenly starts down a 14deg incline. his speed
The coefficient of static friction between the stone and each side of the tread channel is 0.7. While the tire surface is rotating at a maximum speed of 1 m/s, the stone flies out of the tread. The magnitude FN of the normal force that each side of t..
A circuit consists of an idealized 166 mH inductor and a 45.8 muF capacitor. What is the natural (linear) frequency of the circuit if the capacitor is first charged to 161 muC, What is the maximum energy stored in the inductor
A dolphin wants to swim directly back to its home bay, which is 0.760 km due west. It can swim at a speed of 4.23 m/s relative to the water, but a uniform water current flows with speed 2.92 m/s in the southeast direction. What direction should th..
A girl sits fixed on a merry-go-round of mass M = 500 kg and radius R = 2 m. The merry-go-round is at first at rest and is free to rotate without friction.
A diver, below the surface of a lake, notices that no light appears to be coming toward her greater than the angle è, what is the angle è
Two toy cars resting on a frictionless table top are separated by a spring compressed by tying it with a thread. wht is the mass of the car moving to the left
One afternoon, a couple walks five-sixthsof the way around a circular lake, the radius of which is1.70km. What are the magnitude and direction (relative to due east) ofthe couple's displacement
A ship sets out to sail to a point 148 km due north. An unexpected storm blows the ship to a point 148 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive angl..
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