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You are relaxing on the beach when your friend suddenly zooms by in an extremely fast powerboat. Suppose (unrealistically) that the powerboat moves at relativistic speeds. The instant the powerboat passes right in front of you, both you and your friend get the same idea to play "Ride of the Valkyries" on your respective stereo systems. Your recordings are identical. In your friend's frame, whose recording finishes first?
In 2.0 minutes, a ski lift raises four skiers at constant speed to a height of 130 meter. The average mass of each skier 65 kilogram. Find the average power provided by the tension
a a particle of charge 40.00 c travels along the negative x-axis with a speed of 100.00 ms. calculate the magnitude of
A transverse harmonic wave travels on a rope according to the following expression: y(x,t) = 0.15sin(2.2x + 17.4t), What is the average speed of the rope during one complete oscillation of the rope
a small immersion heater can be used in a car to heat a cup of water for coffee or tea. assume the manufacturers claim
What is its velocity when it reaches the maximum height.
A +0.605 mC charge is 0.113 m from point x, a -0.398 mC charge is 0.174 m from point x, and a -0.211 mC charge is 0.251 m from point x. What is the electric potential at point x?
Two spaceships, each of proper length 100 m, pass near each other heading in opposite directions. If an astronaut at the front of one ship measures a time interval of 2.50 x 10^-6 sec for the second ship to pass him, then what is the relative velo..
An object is accelerated by a force. If the force is increased by a factor of 3 and the mass is increased by a factor of 4, by what factor will the acceleration change
What is the cross-sectional area of the pipe? Assume that the concentration of methane in the atmosphere is zero.
A certain wire stretches 0.980 cm when an outward force of magnitude F is applied to each end. The similar force is applied to a wire of the same material however with tree times the diameter and with three times the length. By how much will the seco..
A cyclist is pedaling at a cadence of 60, so the bicycle wheel make 60 rotations per minute around the axis through its center. What is the wheel's angular speed
Light of wavelength 700 nm is incident on the face of a fused quartz prism (n = 1.458 at 700 nm) at an incidence angle of 72.4°. Calculate the angle of refraction at the first surface
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