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A bullet is fired at a block of wood whose mass is 2000 gram and suspended as a ballistic pendulum. The speed of the bullet just before impact is 28,140 cm/sec. The bullet sticks in the block and the impact causes the bullet block system to rise 10 centimeters. Find what is the mass of the bullet?
John carries one heavy box and kicks the other box so that it slides for a little bit and then stops, and he continues this until he reaches his destination. His kicks to the box have an acceleration of magnitude 4m/s^2. What is the coefficient of ki..
In exercising, a weight lifter loses 0.152 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. find the change in the internal energy of the weight lifter
A spherical 3-mi diameter comet impacts the earth with a velocity of 20 mi/s. Calculate the amount of heat released from the impact site
An air-track glider attached to a spring oscillates with a period of 1.50s . At t=0s the glider is 4.50cm left of the equilibrium position, obtain the phase constant
a 15 kg flywheel has all its mass around its outer rim. a string is wrapped around it and a m 3.7 kg weight is hanging
A bullet of mass m=30 g or .03 kg, is fired into a wooden block of mass M=5.0 kg. The block is attached to a string of length 1.5 m. The bullet is embedded in the block, causing the block to then swing.
One solenoid is centered inside another. The outer one has alength of 50.0 cm and contains 6700 coils, while the coaxial inner solenoid is3.0 cm long and 0.120 cm in diameter and contains16 coils. The current in the outersolenoid is changing at 38..
An ordinary glass is filled to the brim with351.0mL of water at 100°C. If the temperature decreased to29°C, how much water could be added to the glass
A boat with a horizontal tow rope pulls a water skier. how much work does the rope do on the skier during a forward displacement of 310
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.
a solid sphere rolls up an incline plane. what is the direction of the frictional force at the point of contact. next
A football game begins with a kickoff in which the ball travels a horizontal distance of 45 yd and lands on the ground. what is the initial speed of the ball in this case
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