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Q1. The potential difference between the plates of a capacitor is 70 V. Midway between the plates; a proton and an electron are released. The electron is released from rest. The proton is projected vertically toward the negative plate with an initial speed. The proton strikes the negative plate at the same instant that the electron strikes the positive plate. Ignore the attraction between two particles, what was an initial speed of the proton?
Q2. The magnitude of the vector is 45.0 units and points in the direction 386 counter clockwise from the positive x-axis. Calculate the x-component of this vector.
The 1.0 kg physics book is conected by a string to a 500g coffee cup. The book is given a push up the slope and released with a speed of 3.0 m/s. How far does the book slide
tennis ball A is dropped from a height of 15 m. Tennis ball B is thrown horizontally from a height of 15 m with a horizontal velocity of 25 m/s
The pilot of an aircraft wishes to fly due west in a 49.8 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 192 km/h.
Find the drift velocity of conduction electrons in a gold wire of diameter 2.88 mm when a current of 0.123 A flows in it
A bat flying in a cave emits the sound pulse and receives its echo in 3.5 s. How far away is the cave wall.
Radioactive decay of granite and other rocks in the Earth's interior provides sufficient energy to keep the interior molten, heat lava, and supply warmth to natural hot springs.
The displacement of a wave traveling in the positive x-direction is y(x, t) = (3.5 cm)cos(1.7x - 129t), where x is in m and t is in s. What is the frequency of this wave
A sphere of radius R = 0.325 m and uniform charge density -151 nC/m3 lies at the center of a spherical, find the magnitude of the electric field at the following radial distances from the center of the charge distribution
Consider a solid sphere, mass = 4.0 kg, that is spinning with an angular velocity of 23 radians/second.The diameter of the sphere is 0.20 meters
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 2.05 cm and is 2.15 m above the bottom of the tank. What is the gauge pressure in the outlet pipe
A coil with magnetic dipole moment 1.5 A-m^2 is rotated initally with its magnetic moment parallel to a uniform magnetic field of 0.4T. what is the change in potential energy of the coil
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