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A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 29m/s, the block hangs vertically down. But when the van maintainsthis same speed around an unbanked curve (radius = 165 m), the block swings toward the outside of thecurve. Then the string makes an angle θ with the vertical. Find θ.
a 5g snail crawls at 0.6mm/s between two rocks 14 cm apart. Treating this system as an infinite square well, determine the approximate quantum number
Astronomers can detect extrasolar planets by observing the slightwobble of stars due to the gravitational forces between the starsand the planets. The Sun wobbles about the center of mass of the solar system
In a Newton's ring experiment, the radius of curvature R of the lens is 4.0 m and the lens diameter is 26 mm. How many bright rings are produced
q. a speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. the belt of
A 2 kg book rests on a frictionless, horizontal surface. Acord attatched to the book passes over a pulley whose diameter is.150m, find The moment of inertia of the pulley about its rotation axis
A snow mibile is pulling a large sled across a snow-covered field. The weight of the sled is 3560 N. If the coefficient of friction of the sled is 0.12,
In the absence of air resistance, a projectile is launched from andreturns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 19 m.Suppose the launch speed is doubled, and the projectile is fired atthe same..
a car with mass of 4000kg accelarates up a road with a slope of 1 in 10 increasing its speed from 2ms to 10ms. it
A shaving/cosmetic mirror is designed to magnify your face by afactor of 1.3 when your face is placed 20.0 cm in front of it. what is the focal length and the radius of curvature of the mirror
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 32.5 dB. What is the intensity delivered to the eardrum
An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pul..
The intensity of sunlight that reaches Jupiter (orbiting at about 5 AU) is approximately what fraction of that at Earths orbital distance.
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