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A ball is thrown vertically upward by a speed of +10.0 m/s.
a) How high does it rise?
b) How long does it take to reach its highest point?
c) How long does the ball take to hit the ground after it reaches its highest point?
d) What is its velocity when it returns to the level from which it started?
A rubber ball of mass 24.5 g is droppedfrom a height of 2.05 m onto a floor. The velocity of the ball is reversed by the collision with the floor,and the ball rebounds to a height of 1.30m. What impulse was applied to the ball during the collision?
A car driving at 20 m/s is approaching a stoplight. As the stoplight turns red, the driver decides that the car is going too fast to stop at the white line and hits the brakes hard. How fast was the car going when the driver changed the rate of dec..
A particular satellite was placed in a circular orbit about 153 mi above Earth. Determine the time required for one complete revolution
What is the period of oscillation of the scale? State your reply numerically in seconds.
Two trains, each having a speed of 30 km/h are headed at each other on the same straight track. A bird can fly 60km/h flies off the front of one train when they are 60 km apart and heads directly back to the first trains and so forth, what's the tota..
The piezoelectric transducers of the ultrasound machine generatefrequencies of 7.4 MHz and 10.5 MHz. Assuming that one wavelength is the size of the smallest object that can be imaged,
A lens for a 35-mm camera has a focal length given by f= 49mm. A How close to the film should the lens be placed to form a sharp image of an object that is 5.3mm away?
You stand on a frictional platform that is rotating at 1.9 rev/s. Your arms are outstretched, and you hold a heavy weight in each hand. What is the resulting angular speed of the platform
a solid copper and glass sphere are equally negatively and positively charged respectively. draw diagrams showing the
a naive model of a solid is a bunch of masses the atoms connected by springs. what is the order of magnitude of the
The blood flow speed through an aorta with a radius of 1.00 cm is 0.365 m/s, If aorta constricts to a radius of 0.800 cm, how much does blood flow speed increase
Two moles of an ideal gas undergo a reversible isothermal expansion from 3.25×10-2 to 4.59×10-2 at a temperature of 21.7. what change of entrophy delta s of the gas.
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