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Speedboat A negotiates a curve whose radius is 156 m. Speedboat B negotiates a curve whose radius is 238 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats?
How much work is done by the Moon's gravitational field as a 900 kg meteor comes in from outer space and impacts on the Moon's surface
What will most likely cause arcing at the switch contacts.
A refracting telescope has an objective lens of focal length 16.0in and eyepieces of focal lengths 12.0mm, What are the largest and smallest angular magnifications
Assume that the interior of the earth can be treated as an incompressible fluid in equilibrium. {HINT: Let ? denote the density; take ? to be a constant; ? = M/V.}
Two round rods, one steel and the other copper, are joined end to end. Each rod is 0.795m long and 1.85cm in diameter. The combination is subjected to a tensile force with magnitude 3950N.
Estimate the pressure exerted on a floor by the one pointed chair leg (50 kg on all four legs) of area = 0.08 cm2
imagine that construction crews have set up a pair of blinking lights 60m apart to make a construction zone along a
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
A recently developed method to study brain function is to produce arapidly changing magnetic field within the brain. When thistechnique, known as TMS, is applied to the prefrontal cortex, forexample, it can reduce a person's ability to conjugate v..
The water system in a town is designed by a careless engineer. He places the new water tower at the top of an extremely tall hill, Calculate the minimum height of the water level in the tower
when the cylinder is fully immersed does the buoyant force acting on it depend on how far below the surface of the
In a single-slit diffraction experiment, a beam of monochromatic light of wavelength 630 nm is incident on a slit of width 0.400 mm. If the distance between the slit and the screen is 1.80 m, what are the positions of the first dark fringes?
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