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A rubber ball is dropped from rest 3.0m onto level ground.
What's the ball's speed when it hits the ground?
Bouncing back, the ball loses 25% of its mechanical energy. To what height does it rebound?
imagine the water is in freefall as it drops. What charge must be on each plate.
The charge on a capacitor increases by 21\mu C when the voltage across it increases from 99V to 119V. What is the capacitance of the capacitor
A cylinder of brass has a diameter of 3mm and a length of 100mm. What is the stress in the cylinder
a photo of a swing ride at an amusement park. The structure consists of a horizontal, rotating, circular platform of diameter D from which seats of mass m are suspended at the end of massless chains of length d. What is the speed of each seat
A 200-m-wide river flows due east at a uniform speed of 4.5m/s. A boat with a speed of 9.0m/s relative to the water leaves the south bank pointed in a direction 28o west of north. How long does it take for the boat to cross the river
With its wheels locked, a van slides down a hill inclined at 38.0 to the horizontal. Find the acceleration of this van if the hill is icy and frictionless
Two capacitors C1 = 5.6 ?F, C2 = 13.7 ?F are charged individually to V1 = 16.4 V, V2 = 6.1 V. Calculate the final potential difference across the plates of the capacitors once they are connected
One January morning, a warm chinook wind rapidly raised the temperature in Spearfish, South Dakota, from below freezing to +11.1° C. Find the average speed at which its height would decrease
q1. express how unmet basic physiological needs of oxygen nutrition temperature and humidity threaten clients
determine the flux of uniform magnetic field B through the curved surface of a right circular cone, show that F through suface 1 = F through surface 2
Intense white light is incident on a diffraction grating that has 720 lines/mm. What is the angular separation between the violet edge (400 nm) and the red edge (700 nm) of the first order spectrum produced by the grating
A parallel beam of light from a He-Ne laser, with a wavelength of 662nm, falls on two very narrow slits 0.050 mm apart. How far apart are the fringes in the center of the pattern if the screen is 2.5m away.
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