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An archer shoots an arrow with a velocity of 48.0 m/s at an angle of 46.5° with the horizontal. An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the minimum initial speed necessary to meet the path of the arrow.
(a) What is the initial speed of the apple? (b) At what time after the arrow launch should the apple be thrown so that the arrow hits the apple?
What is torque exerted by the fish about an axis
A 15m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes 60 angles with the horizontal.
True false questions on physics
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object, find vthe object's speed at the bottom of the slope
The disk in a CD player does not rotate at a constant rate, but spins at a rate determined by a control circuit so that the linear speed of the track being read is constant, what will be its rotation rate at the end
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
Two cesium-133 atomic clocks differ by one second in 6000 years. Assume one of the clocks gains one second in six thousand years, approximately what is the change in the number of oscillations of the light each second?
A parallel plate capacitor has plates of area A and seperation of d and is charged to a potential difference of V.Derive expressions for the new potential difference
At what height above the surface of the earth does the balloon have a velocity of 8.10 m/s.
When she stands 3.5m from you, what is the height of her image formed on the retina of your eye, What is the height of her image when she is 4.5 m from you
A world-class sprinter accelerates to his maximum speed in 4s . He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire rac
A LASIK vision correction system uses a laser that emits 10 ns-long pulses of light, each with 2.5 mJ of energy. What is the average power of each laser pulse
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