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Question1
An electron is a subatomic particle that is subject to electric forces. An electron moving in +x direction accelerates from an initial velocity of +5.40 x 10^5 m/s to a final velocity of +2.10 x 10^6 m/s as travelling a distance of 0.038m. The electron's acceleration is due to 2 electric forces parallel to the x axis: F1 = +7.50 x 10^-17 N, and F2, which points in -x direction. Find out magnitudes of
(a) Net force acting on the electron and
(b) Electric force F2.
Question2
A beam of parallel rays from a 29 MHz citizens band radio transmitter passes between two electrically conducting (thus opaque to radio waves) buildings located 60m apart. What is angular width of the beam while it emerges from between buildings?
Question3
Points A and B have electric potentials of 291 V and 129 V, in that order. As an electron released from rest at point A arrives at point C its kinetic energy is KA. When electron is released from rest at point B, though, its kinetic energy when it reaches point C is KB = 4KA.
A massless, rigid board is placed across two bathroom scales that are separated by a distance of 1.74 m. Find the weight of the person
A spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 3.10 × 1013 kg.m/s. Find the relativistic momentum of the spacecraft
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A 265.0 kg block of ice at 0o C is placed in a large lake. The temperature of the lake is just slightly higher than 0o C, and the ice melts. What is the entropy change of the lake
A 650-N physics student stands on a metric bathroom scale inside an elevator. The elevator (including the student) has a total mass of 875 kg. What is the tension on the elevator cable in both cases
A 70.0kg archer, standing on frictionless ice, shoots a 100g arrow at a speed of 50m/s. What is the recoil speed of the archer
When using 690 nm light to perform the double slit experiment, the interference in the middle is a bright fringe, If the slits are 2.48 µm apart, at what angle will we observe the first-order dark fringe
It continues to fly along the same horizontal arc, but increases its speed at the rate of 1.45 m/s2. Find out the acceleration in this situation at the moment the hawk's speed is 4.60 m/s.
In the circuit show in the figure, S1 has been closed for a long enough time so that the current reads a steady 3.5A. What is the maximum charge that the capacitor will receive
If the separation between the two plates is double the value calculated in part (a), what potential difference is required for the capacitor to store charge of magnitude 260 pC on each plate
Find out the induced emf in the loop at an instant
A large circus ride has a centripetal acceleration at 6.0 m/s2. If the circular ride has a radius of 11.0 m, what is its velocity at the edge
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