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A skier is gliding along at 5.0 on horizontal, frictionless snow. He suddenly starts down a 10incline. His speed at the bottom is 15 .
a) what is the length of the incline?
b) how long does it take him to reach the bottom?
The current-density magnitude in a certain circular wire is J = (3.10 × 1010 A/m4)r2, How much energy is converted to thermal energy in 2.00 h
If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, illustrate what distance would the bird cover? Express your answer in miles.
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t=0 s. What is the amplitude of the oscillation
Air that occupies 0.19 cubic meters at 1.03e+05 Pa gauge pressure is expanded isothermally to atmospheric pressure, Compute the work done by the air
The fundamental frequency of a pipe that is open at both ends is 598Hz. How long is this pipe
Two lenses that are 35 cm apart are used to form an image. Lens 1 is diverging and has a focal length of f1= -7.0 cm; Use a ray diagram to find the approximate location of the final image
Two large metal plates of area 1.20m2 face each other. They are 4.8cm apart and have equal but opposite charges on their inner surfaces. The strength of the electric field between them is 63N/C.what is the magnitude of the charge on each plate.
In the figure to the left, the pulley (which is in the form of a disk) has a mass of 7.50 kg and a radius of 35 cm. What is the speed of the iron block
We can use 30kJ of work from a heavy-duty pushing robot that can apply different constant forces. Draw a free-body diagram for the freigh
A laser beam strikes one end of a slab of material, Determine the number of internal reflections of the beam before it emerges from the opposite end of the slab
A batted baseball leaves the bat at an angle of 33.0 above the horizontal, How high does the ball rise above the point where it struck the bat
During a golf drive, the angular velocity of the driver is 20 rad/s just before impact with the golf ball. If the distance from the club head to the axis of rotation is 2.0 m
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