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A block with mass m1 = 9.4 kg is on an incline with an angle ? = 33.0° with respect to the horizontal. For the first question there is no friction between the incline and the block. When there is no friction, the magnitude of the acceleration of the block== 5.33 m/s2 Now with friction, the acceleration is measured to be only a = 3.58 m/s2. the coefficient of kinetic friction between the incline and the block== .213 ********To keep the mass from accelerating, a spring is attached with spring constant k = 166.0 N/m. What is the coefficient of static friction if the spring must extend at least x = 15.0 cm from its unstretched length to keep the block from moving down the plane?
A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 18.0 m. What is the magnitude of the force that the shopper exerts
An asteroid is discovered heading straight toward Earth at 15km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 29degree to its original path at a..
Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. How far does the top surface move relative to the bottom surface
A juggler on stilts throws a ball straight up, from a height of 2.5cm. It reaches a height of 3.5m, and then falls back to the ground. What is the impact velocity when it hits the ground
The only force on a 4.0-kg body as it moves along the x axis is given by F(subscript "x") = (14 - 6.1x) N, What is the maximum kinetic energy attained by the body
A quarterback is asked to throw a football to a receiver that is 32.9 m away. What is the minimum speed that the football must have
a cylinder piece of metal .085m tall with a diameter of 3.90 cm has a specific gravity equal to 5.0. What is the mass of the cylinder in units of grams
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.0 x 10^4 rev/min. Find the drill's angular acceleration
A red ball is thrown down with an initial speed of 1.1 m/s from a height of 29.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, What is the maximum height the blue ball reaches
A mass m = 4.5 kg hangs on the end of a massless rope L = 2.01 m long. The pendulum is held horizontal and released from rest. What is the magnitude of the tension in the string at the bottom of the path
A parallel-plate capacitor has 1.65 cm2 plates that are separated by 4.17 mm with air between them, how much energy does it store
write a four to six page paper in which you1.follow the five steps of persuasion establishing credibility
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