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A baseball has a velocity of 41.5 m/s (92.8 mi/h), directed horizontally, as it is released by a pitcher. The ball's velocity 0.0100 s before it is released is 39.4 m/s, directed 3.75° above the horizontal. Calculate the ball's instantaneous acceleration just before it is released.
A child on the merry-go-round is moving with a speed of 1.15 m/s when 1.10 m from the center of the merry-go-round.
A small remote-control car with a mass of 1.59 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5 m.
Find the intensity of the starlight at the Earth, Find the power of the starlight the Earth intercepts. One light-year is the distance traveled by the light through a vacuum in one year
A bottle has a mass of 28.60g when empty and 92.15gwhen filled with water. What is the specific gravity of this other fluid
How much time elapses between first splash and second splash
Use Ampere's Law to find the magnetic field inside and outside a straight wire of radius Rcarrying current I uniformly distributed over it's circular cross-sectional area A.
A 1.0 kohm resistor is connected in series with a 10 mH inductor, a 30 V battery, and an open switch. at time t=0, the switch is suddenly closed. What are the voltage drops Vr and Vl 20.00 us after the switch is closed.
A 3.0-kg block sits on top of a 5.0-kg block which is on a horizontal surface. If the force is 10% greater than your answer for (a), what is the acceleration of each block
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves needed for the bat to detect an insect that is 0.53 cm long? (Assume the speed of soun..
A block is resting on a ramp with coefficient of friction between the blockand the ramp being .350, What is the max angle that the block can make without slipping
A very long solenoid of circular cross section with radius R = 5.30 cm has n = 69.0 turns/cm. An electron is sitting just outside the solenoid, at a distance r = 5.80 cm from the solenoid axis. What is the magnitude of the force on the electron as..
Relationships between wavelength, frequency and speed.
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