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1. What is the frequency f in Hz of light that has wavelength 288 nm?
2. A photon has energy 3.21 eV. What is the wavelength in nm of this photon?
3. The work function for a metal surface is 5.22 eV. What is the largest wavelength of light in nm that will produce photoelectrons from this surface?
the coyote accidentally runs off the edge of a cliff and plummets to the ground 30.0 m below. Illustrate what force does the ground exert on the coyote as he makes a coyote-shaped dent 0.420 m deep in the ground?
moves through its horizontal position at (B) and up to (C) where it stops with 2 = 109.0o, and then falls back down. Friction at the pivot is negligible. Compute the speed of the CM at (B).
A 545-turn circular-loop coil with a diameter of 18.8 cm is initially aligned so that its plane is perpendicular to the Earth's magnetic field, What is the value of the Earth's magnetic field
Two cylinders of the same material and length, are held horizontally one atop the other with space in between so they are not touching.. Viewed from the end they look like two circles on top of each other with space between(looks like a lower case..
Starting with the left-most column, populate the boxes from left to right without skipping empty boxes. Ties should be grouped in the same box
A positive point charge Q is on the y axis at y = D; a negative point charge -2Q is at the point x = D, y = D. Find the potential for points on the x axis
A skier of mass 68.4 kg glides down a hill of slope 26.5 degree at constant speed. If she travels a distance 35.0m down the hill, what is (a) the work done by friction and (b) the coefficient of friction between her skis and the slope?
a particle is moving in the xy plane with constant acceleration. at t=0, it has a velocity of v=(4.00i-5.00j) m/s. At t=4.00 s, determine the acceleration of the particle (magnitude and direction)
On a winter day when the temperature is 4.00, the resistance of the carbon resistor is 217.4. Evaluate what is the temperature on a spring day when the resistance is 215.8
Find the current that flows if the same potential difference. A 63 kg trampoline artist jumps vertically upward from the top of a platform with the speed of 4.8 m/s. If the trampoline behaves like a spring of spring constant 6.2×10^4 N/m, how far ..
A person with perfect pitch sits on the bus bench listening to the 442 Hz horn of an approaching car. If the person detects a frequency of 479 Hz, how fast is the car moving.
A wooden board that is 50 cm long, 20 cm long, and 4 cm thick is floating in water. Rocks are then carefully placed on the top face of the board until the top of the wood just slips below the water surface. The density of water is 1000 kg/m^3 and ..
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