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Why do you think efforts by large governments or groups even exist to dispel genocide?
Calculate the momentum of a 17m^3 of air (density of 1.3kg/m^3) hitting a sky diver traveling 52 m/s
100 m3 /min of a gas mixture containing 1 mol % water and 99 mol % air is cooled at constant pressure of 1 bar from 200 °C to 25 °C. 50 % of the water in the inlet stream is condensed during this process. Calculate the cooling duty of the process ..
At 28.0 m below the surface of the sea (density = 1 025 kg/m3), what is the volume of the bubble just before it breaks the surface
An airplane wing is designed so that the speed of the air across the top of the wing is 220 m/s when thespeed of the air below the wing is 205m/s. The density of the air is 1.29 kg/m3. What is the lifting force on a wing of area 30.0m2?
A 17 kg object and a 23 kgobject are connected by a massless compressed spring and rest on a frictionless table.After the spring is released, the object with the smaller masshas a velocity of 3m/s to theleft.
A disc of mass M and radius R is rolling purely without slipping with velocity V on a flat horizontal floor. When it hits a step in the floor of height R/2.what is the velocity of the center of mass of the disc just after impact.
a sled is moving down an incline plane, the mass of the sled is 40 kg. the angle is 35 degrees, coefficient of kinetic friction is 0.3. Find acceleration of the sled
In lab you find that a 1-kg rocksuspended above water wights 10 N. when the rock issuspended beneath the surface of the water , the scale reads8N.
A 5.70-kg ball is dropped from a height of 12.0m above one end of a uniform bar that pivots at its center. The bar has mass 6.00kg and is 4.80m in length. At the other end of the bar sits another 5.10-kg ball, unattached to the bar. The dropped ball ..
A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at 60.0m/s, Find the vertical component of the average force on the ball
A box is hanging from a chain having a mass of 60 kg. The box has a mass of 78 kg. Find the tension in the top of chain and the bottom of the chain.
A bedroom bureau with a mass of 40 kg, including drawers and clothing, rests on the horizontal floor. compute the static friction force on the bureau initially
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