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To determine the muzzle velocity of a bullet fired from a rifle, you shoot the 3.57-g bullet into a 2.47-kg wooden block. The block is suspended by wires from the ceiling and is initially at rest. After the bullet is embedded in the block, the block swings up to a maximum height of 0.773 cm above its initial position. What is the velocity of the bullet on leaving the gun's barrel?
A cylindrical grain bin 24.0 ft in diameter is filled with corn whose weight density is 45.1 lb/ft^3. How tall can the bin be for the floor
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Determine the specific heat of the unknown second sample
A metal rod 6.00 m long is held in a horizontal position. what is the torque exerted on the rod by the tension in the rope
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the magnitude of the acceleration of a satellite in a geosynchronous orbit
A mirror produces an image that is located 38.00 cm behind the mirror when the object is located 7.60 cm in front of the mirror. What is the focal length of the mirror?
A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.04 s later. What was the car's constant deceleration before impact
An airplane has a mass of 1.40 104 kg, and each wing has an area of 33.0 m2. Determine the pressure on the upper wing surface
suppose we measure the resistance from one hand to the other and find it to be 2 kilo ohms. What is the resistivity of skin
A particular organ pipe can resonate at 231 Hz, 385 Hz, and 539 Hz, but not at any other frequencies in between. Is it an open or a closed pipe? What is the fundamental frequency of this pipe.
A 15.0 kg box is released on a 30 degree incline and accelerates down the incline at 0.30 m/s squared. Find the frictional force impeding its motion
A solid, horizontal cylinder of mass 9.0 kg and radius 1.30 m rotates with an angular speed of 8.00 rad/s about a fixed vertical axis through its center. Determine the final angular speed of the system
After watching a news story about a fire in a high rise apartment building, you and friend decide to design an emergency escape device from the top of a building. To avoid engine failure, your friend suggest a gravitational powered elevator. calcu..
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