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A bullet of mass mb = 16 g is fired with a speed of 260 m/s at a target that is a sheet of metal (mass mt = 410 g). The target is square with sides of length L = 15 cm. The target is hinged along its top edge so that it can swing freely (see figure below). If the bullet hits in the center of the target and then becomes stuck, what is the angular velocity of the target plus bullet just after the bullet hits?
The engineer has done a survey and found that almost no one complains if the force directed up the ramp is no more than 20 .Ignoring friction, illustrate at what maximum angle should the ramps be built, assuming a full 28 grocery cart?
imagine 1.0 stock tank barrel oil and 1000 scf gas that have been produced were somehow put back to reservoir at certain condition of pressure, what is the oil formation and solution gas oil ratio
The root-mean-square speed (thermal speed) of the molecules of a gas is 200 m/s at a temperature 23.0°C.
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. Explain how much force must you exert to keep the pole motionless in a horizontal position
A 1035 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 5.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 16 km/h. The car now ..
Two blocks connected by a string are on a horizontal frictionless surface, How much time is required for the hanging weight to fall 10.0 cm if it starts from rest
An electron and a positron, each moving at3.0×105m/s, collide head on, disappear, Determine the momentum of each photon
A 1600kg car takes a 50-m-radius unbanked curve at 17m/s, What is the size of the friction force on the car
The angle of refraction of a ray of light traveling through a piece of fused glass quartz is 29°. Find the angle of incidence
What is the speed of the center of mass
Define the velocity and the potential energy of an object briefly.
When he was first thinking about relativity (and before he developed his theory), find the your friend's speed relative to your reference frame
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