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Two ice skaters, with masses of 30.0kg and 65.0kg , are at the center of a 60.0m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.
If the heavier skater reaches the edge in 40.0s , how long does the lighter skater take to reach the edge?
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1330 Hz. What is the speed of the bird
A 2.96 mA beam of electrons moving at 2.09x106 m/s enters a region with a sharply defined boundary, Find the transmitted and reflected currents
A right side view automobile mirror with a radius of curvature of 15.0 m reflects an object at a distance of 10.0 m from the mirror. calculate the magnification factor
What additional experiment can help you decide between these two possibilities.
The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Find out the maximum speed the stone can attain without breaking the string.
A bat at flying east at 30 m/s sends out ultrasonic waves at 60kHz and receives them returned from an object moving east at 35.0 m/s, What is the sound frequency of the reflected wave as heard by bat
An electromagnetic wave propagates along the +y direction, If the magnetic field at the origin is along the +x direction, what is the direction of the electric field
What is the velocity of the rocket when it runs out of fuel.
An electron is inside a solenoid, 28 cm from the solenoid axis. At what rate is the solenoid's magnetic field changing
The wheel weighs 70 kg, and is 120 cm in diameter. you mount the wheel by its central axis, What is the angular velocity of the wheel at the end of the fall
Two generators use the same magnetic field and operate at the same frequency. Find the coil radius r of this other generator
A helicopter is ascending perpendicularly with a speed of 5.02 {rm m/s}. At a height of 115 {rm m} above the Earth, a package is dropped from the window.
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