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Starting from rest, a 10.0-kg block slides 3.00m down africtionless ramp (inclined at 30.0° from the floor) to thebottom. The block then slides an additional 5.00m along the floorbefore coming to a stop. Determine
a) the speed of the block at the bottom of the ramp.
b) the coefficient of kinetic friction between block andfloor.
c) the mechanical energy lost due to friction.
a block of mass m=0.2kg , in simple harmonic motion, has an amplitude of 3.5cm and a maximum speed of 70 cm/s. What is the angular frequency for the oscillation in rad/s?
A curve of radius 40 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely create the curve?
A football spends a total of 5 seconds in the air. It reaches a peak height of 30 meters. How long does it take to reach its peak height? The football has the range of 90 yards. What is its horizontal velocity.
Liquid nitrogen boils at 77.00 K. Would this experiment needs to be altered if we used water, which boils at 373 K? Why.
A drum of chemical waste has a lid with a radius of 35.0 cm. To open the thing, a torque of 367Nm is required. With what force must you work on the thing
A 6,500 kg bus traveling at 25 m/s collides head on with a 1,300 kg car traveling at 40 m/s. Find the resulting velocity of the vehicles
A tank is 2m above the connection to the water controls. The water then travels up a vertical pipe to the shower head 3.5m above the water controls. Determine the water pressure at the shower controls
A .430 kg block of wood hangs from the ceiling by a string, and a 7.10 x 10^-2 kg wad of putty is thrown straight upward, How high does the putty-block system rise above the original position of the block
If the backpack begins to slide when the spring ( = 150 ) stretches by 2.40 , what is the coefficient of static friction between backpack and table.
A rock is kicked off the edge of a cliff 45.0m high with an initial velocity of 10.0m/s in the horizontal direction. How far from the bottom edge of the cliff does it land
Two children with masses of 24 and 31 kg are sitting on a balanced seesaw. If the lighter child is sitting 3 m from the center, where is the heavier child sitting
A 22 particle is moving to the left at 26m/s. How much net work must be done on the particle to cause it to move to the right at 51m/s
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