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A negatively charged particle remains stationary in an downwardly directed E field between two parallel charged plates separated by 2cm. Compute the potential difference V between the plates if the particle has a mass of 4*10-13 kg and a charge of -2.4 * 10 -18 C. How many electrons does the charged particle contain?
On a nice winter day at the South Pole, the temperature rises to ?63°F. What is the approximate temperature in degrees Celsius
A 115 granite cube slides down a 35 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest.
area ratio. i know that at a temperature of 3000k the power was 4.59 x106 wm2 and at 6000k the power was 7.35 x107 wm2
An electron and a positron, each moving at3.0×105m/s, collide head on, disappear, Determine the momentum of each photon
A gardener opens a hose and water is ejected horizontally at the speed of 6m/s. The diameter of the hose is 2cm and the density of water is 1000kg/m^3.
A 4.0 kg cube of iron slides from rest down a frictionless ramp (1.5 m above flat surface), How fast are they going after the collision
A planet of mass m = 1.35 × 10^24 kg is orbiting in a circular path a star of mass M = 7.35 × 10^29 kg. What is the orbital period (in earth days) of the planet Tplanet
A concave shaving mirror has a radius of curvature of 37.8 cm. In the mirror, the image of a pimple on your face is magnified +6 times what it actually is on your cheek
What type of atom has been assigned a mass in order to act as a comparison for other types of atoms, Is the Earth's rotation used as a standard of time?
A solenoid is constructed with a total of 1500 turns wound around a length of 25 cm. A constant current of 1.7 A flows through the solenoid. Calculate the magnetic force on the proton
A cord passes over a weightless and frictionless pulley. Masses of 200 and 300 grams are attached to the ends of the cord. Find the distance the masses will move during the fifth second after they had started.
A container holds 1.4 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 8.2x10-3 kg bullet with a speed of 780 m/s
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