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Suppose an electron is accelerated by an electric field between two plates, plate A and plate B. Assume the electron acquires 1.3E-16 J of kinetic energy in going from from plate A to plate B. How much is the difference in potential (in V) between the plates, V(B)-V(A)?
The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If ?c= 42.0° what is the index of refraction of the material?
A bicycle wheel initially rotating at 3 rad/s, the rotation increases to 7 rad/s within 6 seconds. Find the bicycle wheel's angular acceleration in rad/s^2
The coefficient of kinetic friction between a refrigerator (mass 100kg) and the floor is 0.20, and the coefficient of static friction is 0.25. If you apply the minimum force needed to get the refrigerator to move, what will the acceleration be?
Three parallel wires are parallel to the y-axis, and all are at z=0. The first is glued to the table top at x=0 and carries a current of 3 amps in the positive y direction. What is the initial acceleration(magnitude and direction) of the second wir..
consider two point charges located on the x axis one charge q1 -14.5 nc is located at x1 -1.700 m the second charge
A 4.47 m long pole stands vertically in a lake having a depth of 2.22 m. while the sun is 62.6 degrees above the horizon, find the length of the pole's shadow on the bottom of the lake.
question1a spark plug in a car has electrodes unconnected by a gap of 0.023 in. to make a spark and ignite the air-fuel
An electron is constrained to the central perpendicular axis of a ring of charge of radius 2.7 m and charge 0.024 mC. See Section 22-6. Suppose the electron is released from rest a distance 0.028 m from the ring center.
A uniform 240 N ladder rests against a perfectly smooth wall, making a 40.0 angle with the wall. Find the normal forces that the wall on the ladder
Consider a hammer with a 1.2-kg head. Let it strike the head of a 12-g iron-alloy nail 16 times in a row, quickly. estimate the temperature rise (in degrees Celsius) of the iron nail
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. What is the amplitude A of each wave
Standing on a sidewalk, you notice that you are halfway between a clock tower and a large building. When the clock strikes the hour, you hear an echo of the bell 0.8 s after hearing it directly from the tower. How far apart are the clock tower and th..
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