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At an water park, a girl slides down a water slide into the main pool. If the girl starts at rest, slides without friction, and descends through a vertical height of 4.14 meter, determine what her speed at the bottom of the slide?
A wheel of radius 1.6m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 2.3m/s2 , what is the point's tangential speed
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 275 kg · m2, What is the new angular speed of the merry-go-round
A particular freely falling object requires 1.95 s to travel the last 33.5 m before it hits the ground. From what height above the ground did it fall.
The battery for certain cell phone is rated at 3.70V. According to the manufacturer it can produce 3.15 X 10^4 J of electrical energy, find the average current that this cell phone draws when turned on
A diffraction grating 1.5 mm wide produces the 5th order at 45 degrees with light of wavelength 650 nm on a screen 80 mm away. What is the total number of lines on the grating
Compare these two ratings by determining the ratio of energy.
You have two weeks vacation and want to travel to a gambling space colony located 3.22 x 10^14 meters from Earth. how fast must you travel to accomplish this
A standing observer perceives a train whistle to have a frequency of 300 Hz. what is the frequency of the sound waves emitted from the train
A traveler in a rocket of proper length 2d sets up a coordinate system S' with its origin O' anchored at the exact middle of the rocket and the x' axis along the rocket's length. At time t' = 0 she ignites a flashbulb at O'.
1. a calculate the efficiency of a carnot engine running between a low temperature of 27.0degc and a high temperature
Calculate the amount of heat loss though a glass window made of a single pane of glass 0.100 in. thick, if the temperature inside the room is 70F and outside is 32 F
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of 200 µC on each plate. What is the dielectric constant of the dielectric slab
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