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A state trooper chases a speeder; along a straight road; both vehicles at 160km/h. The serin on the troopers vehicle produces sound at a frequency. Doppler shift in the frequency heard by the speeder
Jonathan is riding a bicycle and encounters a hill of height h. What is the total external work done on the system of Jonathan and the bicycle between the time he starts up the hill and the time he reaches the top
A 1.33kg dense mass is on the end of 4.50m "string", What Would be the period of the pendulum on earth
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
An 77 box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 each second. compute the coefficient of kinetic friction between the box and floor
A hoop of mass M and radius R is rotating about an axle at the edge of the hoop. what is the speed of the lowest point on the hoop
A mica sheet 0.969 ?m thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 460, 525, Calculate the index of refraction of the mica sheet
During an initial stage of construction, the beam is not to be bolted to the wall, but to be held in place solely by friction. What is the least coefficient of friction between the beam and the wall for the beam to remain in static equilibrium.
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. Find the power consumed by the air filter.
Laser light of wavelength 6.30x10^2 nm is incident upon two narrow slits separated by 0.17 mm. how far apart are the interference fringes
On July 15, 2004, NASA launched the Aura spacecraft to study the earth's climate and atmosphere, How many hours does it take this satellite to make one orbit
A wave pulse travels down a slinky. The mass of the slinky is m = 0.85 kg and is initially stretched to a length L = 6.5 m. What is the speed of the wave pulse
A rock is dropped off a bridge and hits the water below 3 s later. The rock is going 30 m/s before it hits the water. what is the height of the bridge above the water
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