Physics, 21.01.2021 16:40 rebecca7415
Pls help ASAP
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Take gravitational constant g = 10 m/s2.
1) The work function for calcium is 2.9 ev. If we shine on the surface made of calcium with a
light of 420 nm wavelength, answer the following questions:
a) Find the energy of the incident photon.
b) Is this energy enough for an electron to leave the atom and if so what is its
maximum energy?
Answers: 2
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Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.
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Often called simply "velocity," this is the velocity of an object at a particular moment in time.
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Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
Pls help ASAP
will marking brainliest
Take gravitational constant g = 10 m/s2.
1)...
Take gravitational constant g = 10 m/s2.
1)...
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