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An automobile traveling 105 km/h overtakes a 1.00 km long train traveling in the same direction on a track parallel to the road.
If the train's speed is 75 km/h, how long does it take the car to pass it?
______min
How far will the car have traveled in this time?
_______ km
What are the results if the car and train are traveling in opposite directions?
_______s
an ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. write the equation for centripital force
Suppose that you hear a clap of thunder 16.2s after seeing theassociated lightning stroke. How far are you from the lightning stroke
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 17.0 m/s at an angle 33.0 degrees; What is the distance between the two girls
A 19 kg solid disk of radius 0.44 m is rotated aboutan axis through its center. If the disk accelerates from rest to anangular speed of 2.5 rad/s while rotating1.0 revolutions, what net torque is required
A fireworks rocket is launched vertically into the night sky with an initial speed of 44.2 m/s. What is the velocity of the rocket's center of mass before and after the explosion
With a particular fingering, a flute plays a note with frequency 583 Hz at 20.0° C. The flute is open at both ends. Find the air column length.
A coil of four circular loops of radius 3.0cm carries a current of 5.0A clockwise, What is the magnetic field at the center of the coil
A 120-cm-thick layer of oil floats on a 130-cm-thick layer of water. What is the pressure at the bottom layer
The coil in an electric generator has 100 turns and an area of 2.5e-3 m2. Find the magnet strength required for this generator
Four identical springs are used as part of a car's suspension system, one on each wheel. What will be the frequency at which the car will bounce
A uniformly charged disk of radius 35.0 cm carries a charge density of 8.20*10-3 C/m2. Compute the electric field on the axis of the disk at the following distances from the center of the disk. Distances are 5.00 cm, 10.00 cm, 50.00 cm, and 200 cm.
A 6.89 kg box sled is coasting across frictionless ice at a speed of 2.87 m/s when a 22.3 kg package is dropped into it from above. What is the new speed of the sled?
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