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An amusement park ride called the Rotor consists of a room in the shape of a vertical cylinder (1.90 m in radius) which, once the riders are inside, begins to rotate, forcing them to the wall. When the room reaches a speed of one rotation every 1.61 s, the floor abruptly drops out. What is the minimum coefficient of static friction among riders and wall necessary to prevent them from sliding down the wall?
A student throws a water balloon vertically down from the top of a building. The balloon leaves the thrower's hand with the speed of 16 m/s. How fast is it traveling after 2.6 seconds.
Sodium ions (Na+) move at 0.860 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
A bat strikes a 0.145 kg baseball. Just before impact, the ball is traveling horizontally to the right at 50.0 m/s, What is the horizontal component of the impulse the bat imparts to the ball
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
question1the pattern if intensity i versus position x shown below is measured on a wall 20nbspmeters from a set of n
Mary needs to row her boat across a 100-{rm m}-wide river that is flowing to the east at a speed of 1- {rm m/s}. Mary can row the boat with a speed of 2- {rm m/s} relative to the water.
A block starts from rest at the top of a 30.0° inclined frictionless plane and after travelling 1.00 m encounters a spring, how much would the block compress the spring
A converging lens (f = 24.6 cm) is used to project an image of an object onto a screen. Find the two object distances
In 0.975 s, a 14.1-kg block is pulled through a distance of 3.32 m on a frictionless horizontal surface, starting from rest. By how much does the spring stretch
In a microscope the length of a tube is 20cm. The focal length of the objective is 1.00cm and the focal length of the eye piece is 3.00cm. Find the magnification of the microscope
q1. a vaulter holds a 31.67-n pole in equilibrium by exerting an upward force u with her leading hand and a downward
suppose after the ball reaches the ground ,it bounces back straight upwards at the speed of half of the speed that it hits the ground, calculate the maximum height that the ball bounces
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