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Question: An electron accelerates through a potential difference of 250 V.
a. How much kinetic energy does the electron gain? Give your answer in electron volts and also in joules. b. If the electron was accelerated from rest, what would its velocity be?
A radioactive sample produces 46035 decays per minute at one point in an experiment and 308.09 days later produces 837 decays per minute. What is the mean lifetime of the material
Find the equation of the tangent line to the curve y = x2 at x = 1. Show that this line is also a tangent to a circle centered at (8, 0) and find the equation of this circle.
oxygen gas initially at 300 k and 100 kpa is contained in a rigid tank. two alternative processes are to be considered
You are lost at sea but happen to have a watch set to Universal Time (UT). If you see the Sun on the meridian when your watch says it is 3:45 PM. What is your longitude on Earth
Is indifferent about personal creativity and imagination.
To find the height of an overhead power line, you throw a ballstraight upward. What is the height of the power line
Light of wavelength 589 nanometer is used to view an object under a microscope. If the aperture of the objective has a diameter of 0.900 centimeter, Determine what is the limiting angle of resolution
A 13g rifle bullet traveling 150m/s buries itself in a 3.7 kg pendulum hanging on a 2.9 m long string, which makes the pendulum swing upward in an arc. Resolve the horizontal component of the pendulum's maximum displacement.
a damped harmonic oscillator consists of a block m, a spring ,k and a damping force. Initial amplitude 25.0cm, because of damping the amplitude falls to three-fourths of this initial value.
A series RLC circuit has a peak current of 2 Amp with a frequency of 61 kHz. If the resistance of the circuit is 57 kΩ, find the average power of the circuit over one cycle
A weightlifter bench-presses a 130.0 kg barbell from his chest to a height equal the length of his arms 0.850 m. How much work does he do
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
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