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A stationary billiard ball, mass 0.17 kg, is struck by an identical ball moving at 3.0 m/s. After the collision, the second ball moves off at 60° to the left of its original direction. The stationary ball moves off at 30° to the right of the moving ball's original direction. What is the speed of each ball after the collision?
final speed of initially stationary ball ?
final speed of initially moving ball ?
A charge of ?3.00nC is placed at the origin of an xy-coordinate system, find the x and y components of the total force and Find the direction of this force
A farsighted person can read printing as close as 25.0 cm when she wears contacts that have a focal length of 44.6 cm. What is the maximum angular magnification that the magnifying glass can provide for her
a piston of mass m can move without friction inside a long vertical cylinder sealed from the bottom and opened from the
A dinoflagellate takes 5.2 s to travel 0.6 mm. Approximate a dinoflagellate as a sphere of radius 35.0 µm (ignoring the flagellum). What is the drag force on the dinoflagellate in seawater of viscosity 0.0009 Pa · s?
helium atoms emit light at several wavelengths. light from a helium lamp illuminates a diffraction grating and is
Dust particles are pulverized rock, which has density 2500 kg/m3. They are approximately spheres 20 ?m in diameter. what is the root-mean-square speed (thermal speed) of a dust particle at 60°C
A defibrillator consists of a 16.7-µF capacitor that is charged to 9.0 kV. how much charge passes through the body tissues
a snowboarder that weighs 80 kg starts from rest at the top of the hill with a downward slope of 30 degrees from the horizontal. What is the coeffient of kinetic friction
It's nighttime, and you've dropped your goggles into a swimming pool that is 4.0 mdeep. How far are the goggles from the edge of the pool
Consider a tennis ball that is hit by a player at the baseline with a horizontal velocity of 50 m/s (about 110 mi/h). What is the ball's angular velocity
It has been suggested that rotating cylinders about 9.0 mi long and 6.2 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acce..
A current with sinusoidal time-dependence, whose peak value is 9.55 A and frequency is 255 cycles per second, Calculate the average power dissipated by the loop
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