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An electron with electric charge of 1.6 x 10-19 C falls through a potential difference of 41 kV in the vacuum of an X-ray tube. What is the kinetic energy of the electron, assuming it started from rest and that there is no loss of energy to friction? (Note:1 volt = 1 joule/coulomb.)
In an experiment in physics class, a model solid-fueled rocket is fired vertically with an acceleration of 3 m/sec2 for 6 seconds. After that time, What is the maximum altitude the rocket reaches
A woman holds a tube of lipstick 9 cm from a spherical mirror and notices that the image of the tube is upright and one fourth its normal size. Calculate the focal length of the mirror
The glass sheet is now coated on the incident side with a material with a refractive index n(coat) = √((n(air)*n(glass))) and a thickness d = λ/4. Prove that there is now, in principle, no reflected power.
Chuck is driving in the opposite direction. He passes the Brownsburg, IN exit at 12:30pm and maintains a constant speed of 65 mph all the way to Champaign. Assume that the Brownsburg and Prospect exits are 105 miles apart, and that the road is str..
question1a 69 kg boy and a 45 kg girl apply an elastic rope at the same time as engaged in a tug-of-war on an icy
question a car is moving straight at a speed of 60 miles per hour. it then turns at a bend of radius of curvature 50
a ball is attached to a center post by a string that is 0.378 m long. the ball is moving in a circle on a frictionless
A brass rod with a length of 10.0 cm is placed end to end with an aluminum rod with a length of 30.0 cm, What is the heat flow from the hot temperature to the cold temperature
two stationary positive point charges charge 1 of magnitude 3.60 nc and charge 2 of magnitude 1.60 nc are separated by
The molecule has a rotational kinetic energy that is of the translational kinetic energy of its center of mass. What then is molecule's angular speed about the center of mass.
A marble statue of volume 1.5 m3 is being transported from New York to England by ship. The statue falls into the ocean and ends up on the ocean floor, 1.0 km below the surface. If the bulk modulus of marble is 70 x 109 Pa and the density of sea ..
An explosion of a 10.0-kg bomb releases only two separate pieces the bomb was initially at rest and a 4.00-kg piece travels westward at 100 m/s immediately after the explosion
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