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In a physics demonstration, two rubber balls are dropped down a tube towards the ground,with the lighter ball behind, and not quite in contact with, the heavier ball. The heavier ball collides with the ground and bounces, then collides with the still descending lighter ball. Assume that all the collisions are elastic. In one such demonstration, the heavier ball has a mass of 500 g, the lighter one a mass of100 g, and they are released 1.00 m above the ground. How high does the light ball rise after the two collisions?
A woman is riding a Jet Ski at a speed of 24 m/s and notices a seawall straight ahead. what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash
A bumper car with mass m1 = 102 kg is moving to the right with a velocity of v1 = 4.9 m/s. A second bumper car with mass m2 = 90 kg is moving to the left with a velocity of v2 = -3.3 m/s, What is the velocity of the center of mass of the system
Find the wavelength of red light in glass if the index of refraction of glass is 1.66. Recall that the wavelength of red light in a vacuum is 700 nm
A small steel ball with a mass of 80 g is releasesd from a resting height of 1.25 m above a ridgid metal plate. What is the velocity of ball before impact.
Calculate the hydrostatic difference in blood pressure between the brain and the foot in a person of height 1.58 m
You switch from a 1.40NA 60x oil immersion objective to a 0.5NA 20x air immersion objective. What is the acceptance angle (in degrees) for the oil immersion objective
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.050 m2. What magnetic field should be used in the second generator, so that its peak emf is the same as that of the first generator
The temperatures indoors and outdoors are 297 and 311 K, respectively. A Carnot air conditioner deposits 6.22 105 J of heat outdoors. How much heat is removed from the house?
Timberland’s incremental tax rate is 30%. Prepare a budgeted income statement assuming that Timberland sells 2,500 tons. Illustrate what is the contribution margin per ton?
The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.73. At what angle does the ray leave the glass at point B
A satellite with mass 2200kg is initially in a circular orbit a distance 325km above the earth's surface. Due to air drag, the satellite's altitude decreases to 250km. Calculate the change in gravitational potential energy
A wire coil is oriented so that its plane is perpendicular to a magnetic field of 0.58 T initially pointing to the left. What is the average induced emf, if the diameter of the coil is 49 cm
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