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Energy is to be stored in a flywheel in the shape of a uniform solid disk with a radius of R = 1.30m and a mass of 73.0kg. To prevent structural failure of the flywheel, the maximum allowed radial acceleration of a point on its rim is 3590m/s2 . What is the maximum kinetic energy that can be stored in the flywheel?
A stunt man (69.3 kg) swings across a valley at the end of a 28.2 m long rope. Find the tension in the rope at the bottom of the swing
A loaded railroad car of mass 6000 kg is rolling to the right at 2.0 m/s when it collides and couples with an empty freight car of mass 3000 kg, What is the velocity of the pair after the collision
A 50.0 kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0 degrees below the horizontal is applied to the box. What is the minimun coeffiecient of static friction
An object is to the left of a thin lens. The lens forms an image on a screen that is 2.60 m to the right of the object. Is the image upright or inverted
Suppose that protons are fired towards the large flat side of a charged conducting plate. How long does it take for the particles to hit the plate
Find the resulting angular speed of the disk (in rad/s) and describe the direction of rotation.
A 1x10^2-kg crate is being pushed across a horizontal floor by a force that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.25. What must be the magnitude of, so that the net work completed by it and the kine..
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. How much time passes before the ice starts to melt
You are kicking a ball in the air that is sitting on the ground. You are told the initial velocity and the distance to a wall of a known height. how fast the ball is going when it reaches the walls position
A 84.3-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.67 rad/s. Find the angular velocity of the platform with its load
Find out the magnitude of the vertical component of the velocity
A 60 kg person jumps from rest off a 5 m high tower straight down into the water. Determine the magnitude of the average forces that the water exerts on the diver
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