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An electron that has a horizontal initial speed of 4.50*106 m/s enters a region that has an electric field of 120 V/m pointing perpendicularly upward.
1) How long (in seconds) does the electron take to travel 8 cm in the horizontal direction?
2) In this same time, what is the perpendicular displacement of the electron? Treat up as positive.
A person exerts 200 J of work onto a 50 N crate while moving it 2 m. If the crate also undergoes 10 N of friction, the net energy for the crate is what
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a 10 kg block rests on top of a spring with stiffness 500 nm. what force is necessary to compress the spring to a
Two laser beams are simultaneously illuminating a diffraction grating. One laser has a wavelength of 632.8 nm. and the other has a wavelength of 637.8 nm. How many slits per millimeter are required to resolve the first order diffraction bright spots...
A 4.4-nF parallel plate capacitor with a sheet of Mylar (? = 3.1) filling the space between the plates is charged to a potential difference of 180 V and is then disconnected. (The initial capacitance including the dielectric is 4.4 nF.)
A certain kind of glass has nblue = 1.62 for blue light and nred = 1.572 for red light. what is the angle between the red and blue light inside the glass
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In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come to rest in the tumor, What is the total charge of the protons that must be fired at the tumor to deposit the required energy
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A simple harmonic oscillator has a potential energy of 25x2 Joules, a kinetic energy of 0.5v2 Joules where x is the displacement in meters and v the instantaneous velocity in m/s. determine the maximum instantaneous velocity
Assuming that the atom was initially at rest, determine the recoil speed of the hydrogen atom when this photon is emitted
A cube of ice is taken from the freezer at -9.5°C and placed in a 105 g aluminum calorimeter filled with 323 g of water at room temperature of 20°C. What was the mass of the ice cube
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