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Is the force of friction the same for different angles of incline if all other parameters are equal? Explain by specifically considering the angles used in the experiment. Angles of 30 and 45 degrees were used with a car being moved up and down the inclined plane.
Consider an RC circuit in which the capacitor is beingcharged by a battery connected in the circuit. After a time equalto three time constants, what percentage of the final charge is present on the capacitor?
light of wavelength 5.0 x 10 ^-7 meter in air hits a double slit. Distance between slits is 4.0 x 10^-4 m Distance to screen is 2.0 m, Determine wavelength of light in water
A 212-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. evaluate the tension in the rope
The power supplied to a typical black-and-white television set is88 W when the set is connected to 120V. How much electrical energy does this setconsume in 1 hour?
A stone is dropped from the top of the cliff. The splash it makes when striking the water below is heard 3.5 seconds after it is dropped. How high is the cliff? Presume that the speed of sound in air is 343 m/s and g = 9.8 m/s2.
An iron ball hangs from a 21.5-m steel cable and is used in the demolition of a building at a location where the acceleration due to gravity is 9.78 m/s2. find the maximum speed of the ball during its swing
A constant force is applied to an object, causing the object to accelerate at 11m/s2. What will the acceleration be if the force is halved
A cell membrane acts as a parallel-plate capacitor with a spacing of 13 nm and filled with water. Suppose the positive plate is on top, What is the capacitance of the membrane
A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. What is the force exerted by the muscle if its effective perpendicular lever arm is2.00 cm
A 1000kg car is traveling at 9m/s strikes a stationary 2000kg truck. they interlock as a result of the collision and move off as one. what is their velocity after the collision?
A pole vaulter vaults over the bar and falls onto thick padding. He lands with a speed of 9.8m/s; the padding then brings him to a stop in a time of 0.40s. What is the average force on his body due to the padding during that time interval? Express..
A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. What is the initial velocity of the green car
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