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A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 17.0 m/s when the hand is 1.50 m above the ground. How long is the ball in the air before it hits the ground? (The student moves her hand out of the way.)
An electron starts from rest 75.5 cm from a fixed point charge with Q = -0.150 µC. How fast will the electron be moving when it is too far away.
A particle of mass 0.400 kilogram is attached to the 100 centimeter mark of a meter stick of mass 0.200 kilogram. Estimate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 30 centimete..
An archer puts a 0.34 kg arrow to the bowstring. An average force of 209 N is exerted to draw the string back 1.3 m. Unless otherwise directed, assume that air resistance is negligible. plan energy bar graphs to solve the problem.
An ideal gas sample occupies a container of volume 0.70L at STP. Find the number of moles in the sample
An airboat with mass 4.36 102 kg, including the passenger, has an engine that produces a net horizontal force of 8.24 102 N, Find the acceleration of the airboat
A child, hunting for his favorite wooden horse, is running on the ground around the edge of a stationary merry-go-round, Find the shortest time it takes for the child to catch up with the horse
A 4.90-g lead bullet traveling at 550 m/s is stopped by a large tree, what is the increase in temperature of the bullet
In 1898, Pierre & Marie Curie isolated about 10mg of radium-226 from eight tons of uranium ore. How many radium nuclei would have decayed during this time
a closed frictionless piston-cylinder assembly contains 4 lbm of h20. beginning with an initial volume of 10 ft3 the
Calculate the force required to pull a copper ball of radius 1.50 cm upward through a fluid at the constant speed 7.00 cm/s. Take the drag force to be proportional to the speed
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27e-25 kg. Determine the radius of the path
A 72 man's arm, including the hand, can be modeled as a 78 -long uniform cylinder with a mass of 3.7, by how much does he raise his center of gravity
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