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Calculate the velocity a spherical rain drop would achieve falling from 5.00 km (a) in the absence of air drag (b) with air drag. Take the size across of the drop to be 4 mm, the density to be , and the surface area to be .
The Bragg interference condition is still the same. But do the diffracted patterns behind the crystal appear under Theta or under 2*Theta? And why?
Lightening produces a maximum air temperature around 3 x 10 ^4 K. Using Wien's Law, find the wavelength of the thermally produced photons
The escape speed from a distant planet is 30 km/s. If the acceleration of gravity on the planet surface is 12.0 m/s2, What is the radius of the planet
A playground merry-go-round of radiusR=2.00m has a moment of inertiaI=255kg·m2and is rotating at9.0rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
A bullet is moving at a speed of 367 m/s when it embeds into a lump of moist clay. The bullet penetrates for a distance of 0.0621 m. Determine the acceleration of the bullet while moving into the clay. (Assume a uniform acceleration.)
A converging lens of focal length 0.187 m forms a virtual image of an object. What is the distance between the object and the lens
A 100 kg scientist finds that the acceleration of gravity at the north and south pole is measured to be 9.832 m/s^2 and only 9.780 m/s^2 at the equator. If the mass of the Earth is 5.98x10^24 kg, determine the radius of the Earth at the equator an..
A cord of length 1.5 m is fixed at both ends. Its mass per unit length is 1.1 g/m and the tension is 11 N. What is the frequency of the fundamental oscillation
Determine the acceleration of the car if race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds.
a bowling ball rolls across a horizontal roof with a speed of 8.57m/s If the roof is 12.5m/s above ground how far from the base of building will the ball land
A man pulls a toboggan for a distance of 50.0 meter along the snow with a rope directed 30.0 degree above the snow. Find how much work is done on the toboggan by the tension force
This pump is used to pump water from one reservoir to another through a pipe of length 125 m, diameter 40 cm, and friction factor 0.0054. The difference in height of the water levels in the reservoirs is 20 m. Neglecting separation losses, Find th..
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