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The uniform rectangular block shown is moving along a frictionless surface with a velocity v1 when it strikes a small obstruction at B. Assuming that the impact between corner A and obstruction B is perfectly plastic, determine the magnitude of the velocity v1 for which the maximum angle u through which the block will rotate is 30
An Earth satellite moves in a circular orbit 649 km above Earth's surface with a period of 97.51 min. What is the speed of the centripetal acceleration
A submarine is 308 m horizontally out from the shore and 141 m beneath the surface of the water. find the height of the building
If the measured parallax shift of star A was 0.1 arcsecs and the parallax shift of star B was 0.05 arcsecs, What is the distance of the farthest star in light-years
How many homes could be heated with the waste heat
In a tennis serve, a 0.073-kg ball can be accelerated from rest to 41 m/s over a distance of 0.95 m. Find the magnitude of the average force exerted by the racket
The energy equivalent of one gallon of gasoline is 1.3 × 108 Joule. A compact car has a mass of 836 kilogram, and its efficiency is rated at 18.4 percent. Obtain the amount of gasoline used to accelerate the car
Eight lights are connected in parallel to a 110 V source by two leads of total resistance 2.20. If 240 mA flows through each bulb, what is the resistance of each.
An airplane propeller is rotating at 1650rpm, Compute the propeller's angular velocity in rad/s
A circuit contains six 240 ohm lamps with 60 W bulbs and a 10 ohm heater connected in parallel. the voltage across the circuit is 120 V. If the circuit has a fuse rated at 12 A, would it melt if everything is on.
A material has an index of refraction of 1.980. What is the critical angle for internal reflection inside a block of this material that is in air
a solenoid is wound with a single layer of insulated copper wire of diameter 2.500 mm and has a diameter of 3.000 cm
a car sits in an entrance ramp to a freeway waiting for a break in the traffic. the driver sees a small gap between a
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