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At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 810 m/s2 and the vertical or y component of its acceleration is 980 m/s2. The ball's mass is 0.41 kg. What is the magnitude of the net force acting on the soccer ball at this instant?
If a car traveling at 55 km/h will skid 24 m while its brakes lock, how far will it skid if it is traveling at 130 km/h when its brakes lock.
In a fast-pitch softball game the pitcher is impressive to watch, Determine the angle of the total acceleration relative to the radial direction
An athlete performing a long jump leaves the ground at a 34.4? angle and lands 7.65m away, What was the takeoff speed
A beam of light has a wavelength of 500 nm in vacuum. What are the wavelength and the speed of the light in the glass
Calculate the energy of a photon required to excite a hydrogen atom from the n = 5 state to the n = 6 state
A spring with a spring constatn of 1200 N/m is placed at the bottom of an inclined plane with an angle of 30 degrees with the horizontal. how far up the incline plane will the block move before it stops
An archer wishes to shoot an arrow at a target at eye level a distance of 49.0 m away. what angle should the arrow make with the horizontal as it is being shot
A certain gyroscope consists of a uniform disk with a 56 cm radius mounted at the center of an axle that is 13 cm long and of negligible mass. what is the precession rate
A cyclist approaches the bottom of a gradual hill at a speed of 11 meters per second. find the speed at which the cyclist crests the hill
An x-ray beam with wavelength 0.210nm is directed at a crystal. As the angle of incidence increases, find the spacing d between the planes of the crystal
An electron with a speed of 5.50×10^6 m/s, collides with an atom. What is the speed of the electron after the collision
In a marathon race, Chad is out in front, running due north at a speed of 3.95 m/s. John is 92 m behind him, running due north at a speed of 4.53 m/s. How long does it take for John to pass Chad
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