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Two blocks of equal massed are connected via a pulley system. The mass of the pulley equals the mass of each block. One block is hanging down from the pulley, and the other is on an inclined plane. This is similar to an Atwood Machine except that on side of the pulley is on an inclined plane. 1)how are the accelerations of the two blocks and the pulley related? 2)What is the acceleration of the block on the inclined plane? 3) If the hanging block starts from a height "h", what is the angular velocity of the pulley when the hanging block hits the ground?
A circular curve of highway is designed for traffic moving at 55 km/h. If the radius of the curve is 120 m, what is the correct angle of banking of the road
A small metal ball with a charge of 0.45 C and a mass of 34 g (0.034 kg) enters a region where there is a magnetic field of 0.55 T. From Newton's second Law, what is the magnitude of the acceleration of the charged ball
The blades in a blender rotate at a rate of 6900rpm. What is the angular acceleration as the blades slow down
The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. what is the frequency (in Hertz) of the tuning fork
A skier starts from rest at the top of a 48 m hill, skis down a 32° incline into a valley, and continues up a 28 m high hill. How fast is the skier moving at the bottom of the valley
A baseball thrown at an angle of 55.0?^\circ above the horizontal strikes a building 16.0m, Find the direction of the velocity of the baseball just before it strikes the building
A 3100 kg cannon is mounted so that it can recoil only in the horizontal direction. Calculate the magnitude of its recoil velocity when it fires a 14.0 kg shell at 480 m/s at an angle of 20.0° above the horizontal
A balloon is initially stationary and full of air. The air in the balloon has a mass of 2 g. What speed does the balloon have
A block of mass m lies on a horizontal table. The coefficient of static friction between the block and the table is mu_s. If the block is at rest, what is the magnitude of the force due to friction
A bicycle rim has a diameter of 0.65 m and a moment of inertia, measured about its center, of 0.29kg?m2. What is the mass of the rim
With its double helix structure, DNA is coiled like a spring. A biophysicist grabs the end of a DNA strand with optical tweezers, What's the DNA spring constant
On the salt flats of Bonnevile, Utah (latitude ?41?^o N) the British auto racer John Cobb in 1947 became the first man to travel at a speed of 400 mph on land. If he was headed due north at this speed, find the ratio of the magnitude of the Coriolis ..
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