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1. A race car traveling at a tangential speed of 90 m/s goes around a curve that has a radius of 50m. The combined mass of the car and driver is 750kg. What is the centripetal acceleration of the car? What is the magnitude of the centripetal force of the car?
2. A roller coaster car starts from rest at the top of the hill with a vertical height of 100m. Ignoring friction, what is the velocity of the roller coaster when it reaches the bottom of the hill? (Inital PE=Final KE)
A flat screen is located 0.94 m away from a single slit. Light by a wavelength of 518 nm (in vacuum) shines during the slit and produces a diffraction pattern. The width of the central bright fringe on the screen is 0.047 m. What is the width of the ..
Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. Determine the final speed of the orange disk
A 4.90-kg ball, moving to the right at a velocity of +2.14 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
assume that a drop of mercury is an isolated sphere. what is the capacitance of a drop that results when 10 drops each
A simple circuit consists of a battery connected to a lightbulb. A current of 0.243 A runs for 64.5 min, What is the voltage of the battery
The hemisphere is placed on its flat surface, with the center directly over a 2.5 mm long line drawn on a sheet of paper. What length of line is seen by someone looking perpendicularly down on the hemisphere?
A hot-air balloon is rising upward with a constant speed of 2.50m/s. when the balloon is 3.00 m above the ground, How much time elapses before the compass hits the ground
A dentist utilizes a mirror to examine a tooth that is 1.25 cm in front of the mirror. The image of the tooth is formed 5.0 cm behind the mirror. Decide the mirror's radius of curvature.
What percentage of the acceleration at Earth's surface is the acceleration due to gravity at the position of a satellite located 300 km above Earth
One of the problems of in-air testing of nuclear weapons (or, even worse, theuseof such weapons!) is the danger of radioactive fallout. what is the daughter nucleus
When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp.
The speed of an arrow fired from a compound bow is about 29 m/s. An archer sits astride his horse and launches an arrow into the air elevating the bow at an angle of 35 degrees above the horizontal, What is the arrow range
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