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A 19.5-kg boy slides down a playgroundslide that drops through a height of 2.32m. If the boy starts at rest at the top of the slide and the slidedoes a nonconservative work of -348 J onthe boy on the way down, what is the boy's speed at the bottom of the slide?
m/s
A playground merry-go-round has a radius of 4.60 m and a moment of inertia of 240 kg*m^2 and turns with negligible friction about a vertical axle through its center. How much work did the child do on the merry-go-round
An air-track glider attached to a spring oscillates between the 12.0cm mark and the 63.0cm mark on the track. What is the maximum speed of the glider
A 120 m long copper wire (resistivity 1.68e-8 Ohm*m) has resistance 6 Ohm. What is the diameter of the wire
Suppose you want to make a rainbow by spraying mist from a garden hose into the air. Why can't you ever walk under the rainbow
A particular organ pipe can resonate at 213 Hz, 355 Hz, and 497 Hz, but not at any other frequencies in between. What is the fundamental frequency of pipe.
A playground merry-go-round has a radius of 4.40 m and a moment of inertia of 255 kg*m^2 and turns with negligible friction about a vertical axle through its center. What is the average power supplied by the child
A base on Planet X fires a missile toward an oncoming space fighter. The missile's speed according to the base is 0.81 c. How fast is the space fighter traveling relative to Planet X
A runner accelerates to a velocity of 4.15 m/s due west in 1.50s. His average acceleration is 0.640 m/s^2, also directed due west. What was his velocity when he began accelerating.
The acceleration due to gravity is 9.8 m/s^2 at Las Vegas, Nevada. What is the mass of the patatoes on the moon
Calculate the work done by an external agent during anisothermal compression of 1.00 mol of oxygen from a volume of24.0 L at 0°C and 1.00 atmpressure to 17.5 L
two identical point charges q 7.60 x 10-6 c are fixed at diagonally opposite corners of a square with sides of length
an x-ray photon of wavelength 150.0 pm is absorbed by a stationary helium atom.a what is the momentum of the photon?b
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