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A swimmer runs horizontally off a diving board with a speed of 3.46m/s and hits the water a horizontal distance of 1.78 m from the end of the board.
q1: How high above the water was the diving board?
q2: If the swimmer runs off the board with a reduced speed, does it take more, less, or the same time to reach the water?
What is the horizontal component of the velocity and how far from the catapult does it land?
What is the intensity of the sound waves at point.
When the eye looks at a star (a point of light), diffraction at the pupil spreads the image of the start on the retina into a small disk, What is the linear size of the image of the start on the retina
Calculate the ratio of the drag force on a jet flying at 1140 km/h at an altitude of 10 km to the drag force on a prop-driven transport flying at half that speed and altitude.
A light ray travels through medium #1 and crosses a boundary into water at an indicent angle of 21.8 degrees. what is the energy of one photon of this light
A Van de Graaff generator has a spherical dome of radius 20 cm. what is the maximum charge that can be held on the dome
A grinding wheel is in the form of a uniform solid disk of radius 6.95 centimeter and mass 1.95 kilogram. Find through how many revolutions does it turn while accelerating
(a) Determine the work done by the applied force. (b) Determine the work done by the normal force exerted by the table.
Light at two different wavelengths, 750nm and 450nm, is shone through the same single slit at the same time. Determine the slit's width
What is the initial (horizontal) velocity of the ball. An airplane needs to reach a velocity of 203 km/h to take off. On a 2000 m runway, what is the least acceleration necessary for the plane to take flight.
What would the (particle) number density be according to the ideal gas law?
The best sprinters can run a 100 m in 10.0 s. A 72.0 kg sprinter accelerates uniformly for the first 53.0 m to reach top speed, What is the average horizontal component of force exerted on his feet by the ground during acceleration
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