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Points A and B have electric potentials of 231 Volt and 129 Volt correspondingly. When an electron is released from point A arrives at point C its Kinetic energy is KEa, When the electron from rest is released at point B, however it kinetic energy reaches point C is Kb= 4KEa. Determine what is the electric potential at C?
A rock is thrown directly upward from the edge of the roof of a building that is 32.5 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistan..
The intensity of an earthquake waves passing though the Earth is measured to be 2.0 x 10^6 J/m^2xs at a distance of 48km from the source. What was its intensity when it passed a point only 1.0km from the source
A coin rests 13.3 cm from the center of a turntable. The coefficient of static friction among the coin and turntable surface is 0.350. The turntable starts from rest at t = 0 and rotates with a constant angular acceleration of 0.628rad/s2.
given that the speed of sound in the air is 343 ms and that human ears are typically 20 cm apart what is the maximum
the mean fee path of air molecules at 0 C and 1 ATM is about 2*10^-5 cm. what is the effective molecular diameter of an air molecule
Suppose the force acting on a tennis ball (mass 0.040 kg) points in the +x direction and is given by the graph of Fig. 7-30 as a function of time. a) Use a graphical method to estimate the total impulse given the ball.
A long and narrow rectangular loop of wire of width 0.080 m is moving toward the bottom of the screen with a speed of 0.017 m/s (see the drawing). The loop is leaving a region in which a 2.3-T magnetic field exists;
A uniform cylinder of mass m=8.26 kg and radius R=0.147 m is released from rest on an inclined plane (theta=42.4 deg), What is the magnitude of the angular velocity just before the cylinder reaches the horizontal surface
In a conservative system how do they relate to each other? Since the subject here is work, how are work and energy related
q1. a friend of yours is loudly singing a single note at 417 hz while racing toward you at 25.7 ms on a day when the
A fire hose ejects a stream of water at an angle of 30.4 ° above the horizontal. The water leaves the nozzle with a speed of 29.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit t..
he wavelength of an electromagnetic wave inside water (nwater = 1.33) is ? = 660 nm. find the wavelength of the same electromagnetic wave
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