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A boy tosses a coin straight up to2.4 m. Assume the height when the coin leaves his hand is 1.0 m. What was the initial speed of the coin when it left his hand?
On a distant planet, golf is just as popular as it is on earth. Agolfer tees off and drives the ball 3.10 times as far as he wouldhave on earth, given the same initial velocities on both planets.The ball is launched at a speed of 41.8 m/s at an an..
A standing wave has been created on a string of length 1.5m. The frequency of the wave is 25Hz. The ends of the string are nodal points and there are 3 antinodes. If the maximum amplitude of the wave is 5cm, write complete expressions, including v..
A computer to be used in a satellite must be able to withstand accelerations of up to 25 times the acceleration due to gravity, What is the minimum amplitude of vibration that must be used in this test
A particular race car can cover a quarter mile track (402 m) in 6.20 s starting from a standstill. what horizontal force must the road exert on the tires
A pendulum clock has a period of 0.683 s on Earth. It is taken to another planet and found to have a period of 0.828 s, Find the gravitational field strength on the other planet.
You are designing a pendulum clock escapement. You have determined that the pendulum must have a period of .600s. What should be the length of the thing
If the electric field is zero in some region of space, the electric potential must also be zero in that region. The value of the electric potential can be chosen to be zero at any convenient point. In electrostatics, the surface of a conductor is an ..
Time standards are now based on atomic clocks. A promising second standard is based on pulsars, what is the associated uncertainty
A particle of mass 0.350 kg is attached to the 100-cm mark of a meterstick of mass 0.200 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
How long does it take the crate to hit the ground. suppose that the plane continues to fly with the same velocity.
an ion having charge 6e is traveling horizontally to the left at 8.55 kms. when it enters a magnetic field that is
In the future, an astronaut weighing 882 Newtons on earth may stand on a new moon and weigh themselves to find they now weigh 441 Newtons. what is the mass of this new moon
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