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An event occursin system K' at x' = 2m , y'=3.5mz'= 3.5 m and t'=0. System K' and K have their axes coincident att=t'=0 and system K' travels along the x axis of system K with aspeed of 0.8c. What are the coordinates of the event in sytem K?
A train is travelling up a 4.40 incline at a speed of 3.30 when the last car breaks free and begins to coast without friction. How long does it take for the car to come to rest? How far does the car travel.
A pot containing1.00 liter of water, initially at 20.08C, is placed on a 1000 W electric heating element. How much heat must be supplied to the water to bring it to a boil
The surface of the Sun has a temperature of 5500 C and the temperature of deep space is 3.0 K. Find the entropy increase produced by the Sun in one day, given that it radiates heat at the rate of 3.80x10^26 W. How much work could have been done if th..
In a physics demonstration, two rubber balls are dropped down a tube towards the ground,with the lighter ball behind, How high does the light ball rise after the two collisions
A ball is initially at rest in your hand. You then accelerate your hand upwards at 20 m/s2 for 0.1 s and release the ball. How far a distance did you lift the ball through
A 63.5-kg runner has a speed of 5.80 m/s at one instant during a long-distance event. If he doubles his speed to reach the finish line, by what factor does his kinetic energy change
A long jumper maintains a constant horizontal velocity component of 7.15 m/s while jumping upward with vertical component 3.85 m/s. Determine her horizontal range
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm, What are the fractions of muscle and fat in the leg
q1. a weather vane at first at rest has a moment of inertia of 0.111 kg bull m2 about its axis of rotation. a 53.0 g
Two small nonconducting spheres have a total charge of 94.1?C. When placed 1.07 m apart, the force each exerts on the other is 10.5 N and is repulsive. What is the (larger) charge on the spheres? What is the (smaller) charge on the other sphere? What..
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
The resistance and the magnitude of the current depend on the path that the current takes. The drawing shows three situations in which the current takes different paths through a piece of material. Each of the rectangular pieces is made from a mat..
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