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A basketball player makes a jump shot. The 0.700 kg ball is released at a height of2.10 m above the floor with a speed of7.10 m/s. The ball goes through thenet 3.10 m above the floor at a speed of 4.30 m/s. What is the work done on the ball by airresistance, a nonconservative force?
The sunball diameter in the calculation of the suns diameter
An air conditioner draws 15 A at 220-V ac. The connecting cord is copper wire with a diameter of 1.446 mm. how much power is dissipated in the wiring
A 2.00 µC charge is experienced by 0.438 N force in an electric field. What is the magnitude of the electric field?
a billiard ball of mass 0.162 kg has a speed of 1.31 ms and collides with the side of the billiard table at an angle of
A starship blasts past the earth at 2.0\times 10^8\;{\rm{ {\rm m}/{\rm s}}}. With what speed does the laser beam approach the earth
a kid fires water horizontally from a squirt gun held 1.4 above the ground. it hits another kid 2.3 away square in the
A solid sphere rolls without slipping when it is released from rest at the top of a ramp that is inclined at 34.0 degrees with respect to the horizontal, Calculate the magnitude of the sphere's acceleration, when the angle of the incline is 34.0 de..
Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 110 π rad/s. What is the kinetic energy of the flywheel after charging
for this module you will investigate the operation of antennas. antennas can both transmit and receive electromagnetic
A basketball player grabbing a rebound jumps 70 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 11.9 cm of this jump and (b) in the bottom 11.9 cm.
string under a tension of 50.5 N is used to whirl a rock in a horizontal circle of radius 2.55 m at a speed of 20.3 m/s on a frictionless surface, What is the breaking strength, in newtons, of the string
It is common to see birds of prey rising upward on thermals. The paths they take may be spiral-like. Find the direction of the bird's acceleration
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