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Q. A certain cable car in San Francisco can stop in 10s while travelling at maximum speed. On one occasion, driver sees a dog a distance d m in front of the car and slams on the brakes instantly. The car reaches the dog 8s later, and dog jumps off the track just in time. If the car travels 4m beyond the position of the dog before coming to a stop, how far was car from the dog?
Assume after charging a 4.80 microF capacitor to 5 V you connect it to the second uncharged capacitor of 15 microF. What voltage will you voltmeter read across the second capacitor after repeating charge sharing process two times? State the answer..
A 0.350 m rod with uniform mass distribution runs along the x axis with its left end at the origin. A 1.80 m rod with uniform mass distribution runs along y axis with its top end at the origin. Find out the coordinates of the center of gravity for..
A 52kg ballet dancer stands on her toes during a performance with four square inches (26cm2) in contact with the floor. What is the pressure exerted by floor over the area of contact in some cases.
A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.
A ball is thrown upward from the ground with an initial speed of 23.90 m/s; at = same instant, a ball is dropped from a building 16 m high. After how long will the balls be at the same height.
How much time takes to release net radiant energy from body
Two speakers, one directly behind the other, are each generating a 152-Hz sound wave. What is the least separation distance between the speakers that will produce destructive interference at a listener standing in front of them.
Chef at the infamous Fattening Tower of Pizza tosses the spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, whereas its rotational speed.
The resistance of a copper wire of length L meter is 0.1 ohms. If the diameter of the wire is 0.045cm, find out its specific resistance.
A straight, stiff wire of length 1.00 m and mass 21g is suspended in a magnetic field B = 0.58T. The wire is connected to an emf. How much current must flow in the wire and in what direction so that the wire is suspended and the tension in the sup..
carnival ride has a large horizontal steel disc of radius 5m from which cars are suspended by a 6m long chain. the disx is rotated about its axis so that the cars swing out and revolve in a circular path. at operation speed the angle of the chains ..
A lightweight string of length 60cm is attached to the ceiling at points separated by distance. Three objects of equal mass are hung from the string, separating the string into 4 equal segments of length L. If θ = 40, find the measure of angle φ a..
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