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After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. In this state, it would have approximately the same mass as it has now, but its radius would be equal to the radius of the Earth.
(a) Calculate the average density of the white dwarf, units in kg/m3
(b) Calculate the surface free-fall acceleration, units in m/s2
(c) Calculate the gravitational potential energy associated with a 1.64-kg object at the surface of the white dwarf, units in J
x rays with a wavelength of .12nm undergo first-order diffraction from a crystal at 80 degree angle of incidence
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Esitmate the change in temperature of 5 m^3 of air, to an increase in pressure of 50 kPa. The initial temperature of the air is 15*C at atmospheric pressure
During the spin cycle of your clothes washer, the tub rotates at a steady angular velocity of 37.5 rad/s. Find the angular displacement of the tub
An interstate highway has been built through a neighborhood in a city. In the afternoon, What is the average late-night sound level
A sound wave is travelling trough a fresh water pool with a speed of 1482 m/s. what is the pressure amplitude of the wave
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 11.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge ha..
Your report should comprise be in the form of a two page memo/document that discusses the regulations and explain how they will apply to your hiring process.
A boat takes 2.6 hrs. to travel 50 km down a river, then 5.6hrs to return. How fast is the river flowing
A person weighing 700N on a wire. find the tension force in the two segments of the wire. left wire 20 degrees and right wire 40 degrees.
A man drags a 71.5-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A 1500kg car starts from rest and drives around a flat 52-m-diameter circular track. at what time does the car begin to slide out of the circle
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