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A mass of 50 kg hangs from a cable that, in turn, is tied to two other cables. The two upper cables make angles of 45 degrees and 65 degrees with the horizontal. What are the tensions in the two upper cables, TL and TR? (draw a free-body diagram)
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
Determine whether the ground state function for the hydrogen atom is an eigenfunction of each of the following operators kinetic energy operator for H atom and potential energy operator for H atom
Jane and Jon, with masses of 50 kg and 60kg, respectively,stand on a frictionless surface 10m apart, What is JOhn's acceleration
Why does the base of a shuttle cock always lead in motion when hit with a racket. what is grocery carts final speed.
A model rocket rises with constant acceleration to the height of 3.7, at which point its speed is 25. what was the magnitude of the rocket's acceleration.
Assuming that the depth of Earth's atmosphere is 100.0 km, what is the total charge incident on the atmosphere in 177.0 s? Assume that the radius of the surface of the Earth is 6378. km.
A person walks 25.0 north of east for 3.10 km. explain how far would another person walk due north and due east to arrive at the same location?
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Students hypothesized that by running the electric current through the wire of the apparatus shown here, they could cause the non-magnetic nail to exhibit magnetic properties. What would be a reasonable way to test this.
A shopper in a supermarket pushes a loaded 28 kg cart with a horizontal force of 12N. How far will the cart move in 3.5s, starting from rest.
Why is you are not harmed with the contact of a charged metal ball, although its voltage may be very high? Is the reason similar to why you are not harmed by greater-than-10000 C sparks from the Fourth-of-July sparkler? Define your answer in terms..
A full cylinder has an absolute pressure of 1.9 107 Pa when the temperature is 300 K. Find out the mass of oxygen in the cylinder.
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