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An electron that has an energy of approximately 62 eV moves between rigid walls 1.4 nm apart.
(a) Find the quantum number n for the energy state that the electron occupies.
(b) Find the precise energy of the electron.
Water flowing through a 2.00cm diameter pipe can fill a 280 L bathtub in 5.0 minutes. What is the speed of the water in pipe.
question1consider a simple pendulum consisting of a point mass m attached to the end of a mass less rod. the pendulum
You throw a ball toward a wall at speed 20 m/s and at angle theta=60 degrees above the horizontal. What is the angle when it hits the wall
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.60×106N, What is the total work done by the two tugboats on the supertanker
Assume that the sun runs out of nuclear fuel & suddently collapses to form a white dwarf star, with a diameter equal to that of the Earth. Estimate the new rotation period of the Sun.
a)What is the angular velocity of the earth (regarded as a particle ) about the sun and b)its average linear speed in its orbit. c) What is the acceleration of the earth with respect to the sun
An observatory has an 8-inch Celestron telescope. Estimate the diffraction limit of this telescope. Estimate the minimum size a feature on the surface of the Sun must have to be resolved by this telescope.
The electric field of an electromagnetic wave in a vaccum is Ey = (25 V/m) sin ((3.78 x 10^8) x - wt), What is the wave's magnetic field amplitude
The electric field everywhere on the surface of a charged sphere of radius 0.190 m has a magnitude of 585 N/C, What is the net charge on the sphere
A 2.0 cm tall object is placed in front of a mirror. A 1.0 cm tall upright image is formed behind the mirror, 150 cm from the object. find Is the image erect or inverted
Which of the following has the most mass: air in a 6516-ft3 house (density = 1.16 kg/m3), a 248-N bag of cement, a 75.8-kg person or a 9.71-lb cat, What is the mass of the cat
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
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