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A 67.0 kg base runner begins his slide into second base when moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. How far does he slide?
A 72 kg man stands on a spring scale in an elevator. Starting from rest, elevator ascends, attaining its maximum speed of 1.20 m/s in 0.80 s.
A beam consisting of 8.22x10^16 electrons/sec passes through a region of vacuum. A) What magnetic field would be measured 1.50cm away from the center of the beam?
To get the top spinning, its string is pulled with a tension of 0.30. Explain how long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
An electron traveling horizontally to the right enters a region where a uniform electric field is directed downward. What is the direction of the electric force exerted on the electron once it enters the electric field? A. to the left B. to the ri..
What is the frequency of the small axial oscillations that electron will undergo if it is released along the z-axis near the origin.
A railroad car with a mass of 2 x10^4 kg moving at 3.0 m/s collides and joins with 2 railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.20 m/s.
What would be the time constant in a RC circuit when R = 200 kohms and C = 10mf? 20
A 4m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.50 m and mass 1 kg. The spool is mounted on a frictionless axle and is initially at rest. The cord is pulled from spool with a constant acceleration of magnitu..
A 0.10kg solid rubber ball is attached to the end of a 0.80 m length of light thread. The ball is swung in a vertical circle. Point p, the lowest point of the circle, is 0.20 m above the floor.
How much time does it take to lift container with the motor.
How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than as the car is stationary? The speed of sound is 343 m/s.
Explain the valve minor loss coefficient and how you would go about determining K.
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