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An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.270 T. If the kinetic energy of the electron is3.70 10-19 J, find the speed of the electron and the radius of the circular path.
A 102-N grocery cart is pushed 13.0 m by a shopper who exerts a steady horizontal force.
A stunt man (69.3 kg) swings across a valley at the end of a 28.2 m long rope. Find the tension in the rope at the bottom of the swing
Determine the position of the GPS satellite relative to and from the center of the earth and ratio of clock rates on a GPS clock in orbit and one on the surface of the earth.
The K-shell ionization energy of copper is 8979 eV. The L-shell ionization energy is 951 eV. Determine the wavelength of the Kα emission line of copper. What should be the minimum voltage be on an x-ray tube with a copper target in order to see the K..
A luminous object is 4.00m for a wall. You are to use a concave mirror to project an image of the object on the wall with the image 2.25 times the size of the object, how far should the mirror be from the wall
How far away does the ball strike the ground?
The pressure of a garden hose is 2 atmospheres. If the cross-sectional area of the hose is 4 cm^2 and the nozzle output area is .4cm^, How fast does the water leave the hose
A lens forms an image of an object. The object is 16.0 cm from the lens. is it erect or inverted
A research submarine has a 10-cm-diameter window that is 8.7cm thick. What is the submarine's maximum safe depth in salt water
A cylinder with a moveable piston contains 178 mL of nitrogen gas at a pressure of 1.22 atm and the temperature of 298 K. What should the final volume be for the pressure of the gas to be 1.52 atm at a temperature of 335 K.
You want to examine the hairy details of your favorite pet caterpillar, using a lens of focal length 8.9 cm that you just happen to have around. what angular magnification do you achieve
An ideal gas occupies 0.14 m3 at an absolute pressure of 1.2×105 Pa and temperature 280 K, How many moles of gas are there
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