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A uranium atom is ionized seven times, losing seven electrons inthe process. Its resulting mass is 3.90×10−25 kgand it is given a kinetic energy of 3000 eV. If it circles ina magnetic field at a radius of 4.00 m, what isthe strength of the magnetic field?
A person walks into a room that has, on opposite walls, two planemirrors producing multiple images. When the person is 5.00 ft from the mirror on theleft wall and 10.0 ft from the mirror on the right wall, find the distances from the person to the..
A common flashlight bulb is rated at .3A and 2.9V (the values of the current and voltage under operating conditions). what is the temperature of the filament when the bulb is on
Two blocks are connected by a very light string passing over a massless and frictionless pulley (Fig. E6.7). Traveling at constant speed, the 20.0-N block moves 75.0 cm to the right and the 12.0-N block moves 75.0 CIJl downward.
radio waves travel at the speed of light which is 3x108 ms. how many minutes does it take for a radio message to reach
A copper block is removed from a 310 C oven and dropped into 1.10 kg of water at 20.5 C. What is the mass of the copper block
question1a 0.31 kg softball has a velocity of 14 ms at an angle of 44deg below horizontal just before making contact
Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation. What is the radius (in cm) of coil 2
A stone dropped into a pond generates a travelling wave group approximately 1 m long; the waves within the group have a wavelength of about .1 m Estimate the range of the wavevector spectrum representing the group.
A 1.9-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system
Object O1 is 14.7 cm to the left of a converging lens with a 10.8-cm focal length. What is the overall magnification of this system
0.085 nm photon collides with astationary electron. Find the momentum and the kinetic energy of the electron
A ceiling fan is turned on and a net torque of 1.6 N·m applied to the blades. What is the angular acceleration of the blades
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