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Analog television sets contain a cathode ray tube. In these tubes electrons are accelerated from rest through a potential difference of V = 650 V before striking the screen.
Input an expression for the work done by the electric force accelerating a single electron, W, in terms of given quantities and the fundamental charge e.
What is the value of this work, in joules?
How much kinetic energy, in joules, does the electron have when it strikes the screen? Typically the electron starts with some very small velocity, but in this calculation you may assume it starts from rest.
How fast is the electron traveling when it strikes the screen in m/s?
two containers are at the same temperature. the first contains gas with pressure p1 molecular mass m1 and
An air-filled (suppose k=1) parallel-plate capacitor has plates of area 2.30 cm2 separated by 1.50 mm. What is the charge on the capacitor
A person is standing on crutches. Assume that the forceexerted on each crutch by the ground is directed along the crutch,as the force vectors in the drawing indicate.
A box of mass 1.60 kg slides down a ramp inclined at an angle θ= 56.9 ° at constant speed. The force exerted on the box by the ramp is Newtons
A point source of light is 82 centimeter below the surface of a body of water. Obtain the diameter of the largest circle at the surface through which light can emerge from the water (nw = 1.33)
Two cylindrical artificial bones are made of the same material and length, one with twice the radius as the other. When the two have the same tension force applied, the larger bone stretches by what factor compared to the smaller bone?
In one dimension, an inertial ball of mass 1 kg has a speed of 1.50 m/s to the right and another inertial ball of mass 3 kg has a speed of 2.00 m/s to the left. Find the velocity of the center of mass after the collision
Consider the circuit shown in the figure below. (Assume R1 = 12.0Ω, R2 = 2.20Ω, andV = 6.00 V.) Calculate the equivalent resistance of the R1 and 5.00Ω resistors connected in parallel.
A fox fleeing from a hunter encounters a 0.615 m tall fence and attempts to jump it. By how much does the fox clear the fence
A heat of 4.3*10^6KJ is req to convert a block of ice at -15deg C into water at 15deg C. What is mass of ice
when an object is dropped from a height of 20.0m above the surface of planet B, what is the acceleration of a falling object close to this planet
A car driving at 20 m/s is approaching a stoplight. As the stoplight turns red, the driver decides that the car is going too fast to stop at the white line and hits the brakes hard. How fast was the car going when the driver changed the rate of dec..
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