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A ball (mass 100g) is recorded to have a speed of 2m/s after falling 5m under gravity. What is the work done by air resistance and the force of air resistance acting on the ball?
A mass-spring system oscillates on a horizontal frictionless surface with an amplitude of 3.41 cm. If the spring constant is 264 N/m, Determine the maximum speed of the mass
a 3 kg cart moves on an air track at 1.2 m/s. It collides with and sticks to another cart of mass 5 kg, What is the velocity of the combined cart after collision
A 100 kg running back is moving with a speed of 4.0m/s. What average force must be applied to stop him in 0.25 s
michael hits a 45.9 g golf ball traveling 56.0 m/s at an angle 60 degree north of east and splits into three pieces. what is the velocity of the third piece
King Arthur's knights fire cannon from the top of the castle wall. The cannonball is fired at a speed of 60 m/s and an angle of 33. A cannonball that was accidentally dropped from the top of the castle wall hit the moat below in 1.80s.
The two upper front teeth of a person exert a total force of 30N on a piece of steak. If the biting edge of each tooth measures 10 mm x 1 mm, find out the pressure on the steak.
A diverging lens (f = -11.0 cm) is located 25.0 cm to the left of a converging lens (f = 36.0 cm). What is the height of the final image
A certain siren radiates sound uniformly in all directions. At a distance of 17m from the siren, How many watts of power does the siren put out
Flux and nonconducting shells. A charged particle is suspended at the center of two concentric spherical shells that are very thin , What is the charge of the central particle
A particular atomic energy state is characterized by a principle quantum number n = 4. How many orbital subshells are possible
A circular loop in the plane of a paper lies in a 0.85 T magnetic field pointing into the paper. The loop's diameter changes from 20.5 cm t0 5.6 cm in 0.55 s, What is the magnitude of the average induced emf
What is the propotion of the mass of these excess electrons to the mass of the penny.
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