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Photons of wavelength 334 nm are incident on a metal plate in a photocell and electrons are ejected. A stopping potential of 1.10 V is able to just prevent any of the ejected electrons from reaching the opposite electrode. What is the maximum wavelength of photons that will eject electrons from this metal?
if a 0.5kg cart and a 2.0 kg cart is attached and are rolling forward with a speed of 2.0 m/s. what are the speed and direction of the larger cart
A point charge 8.00 nC is at the center of a cube with sides of length 0.200m. what is the electric flux through: (a) the surface of the cube (b) on of the six faces of the cube?
142.3 cm and not more than 142.6 cm. What is the relative uncertainty of the measurement
In a shuffleboard game, the puck slides a total of 12 m before coming to rest. what was the initial speed of the puck
A cube of side 2cm is made of material of bulk modulus 4.7\times 10^{^{5}} N/m^2. What is the new length of each of its sides
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.95 mm. If a 21.7-V potential difference is applied to these plates, calculate the following. (a) the electric field between the pl..
what horizontal force is required to move the crate. If the coefficient of kinetic friction between a 33 kg crate and the floor is 0.26, what horizontal force is required to move the crate at a steady speed across the floor? Which is 84 I just help..
A car (mass 930 kg) is traveling with a speed of 48 mi/h. A bug (mass 6 mg) is traveling in the opposite direction. What speed would the bug need
A hypodermic syringe has a piston area of 0.5 cm^2 and a needle with circular opening of diameter 0.2 mm. What is the gauge pressure in the syringe while pushing the piston with 1 N of force
an object mass 10.0 kg slides upward on a slippery vertical wall. a force f of 60n acts at an angle of 60 degrees.
What would be the height of the atmosphere if the air density were uniform and decreased linearly to zero with height
A piece of radium has an activity of 18 mCi. What is the mass of the radium
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