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a. What is the energy in joules and electron volts of a photon of 520-nm green light?
b. What is the maximum kinetic energy of electrons ejected from calcium by 520-nm green light, given that the binding energy (or work function) of electrons for calcium metal is 2.71 eV?
a verify that a photon of an fm radio signal with a frequency of 100 mhz has an energy of about 4e-7 ev.b in a typical
A house has a floor area of 186 m2 and an outside wall that has an area of 46.5 m2. The earth's magnetic field here has a horizontal component of 2.56E-5 T that points due north and a vertical component of 4.14E-5 T that points straight down, towa..
A small glider is placed against acompressed spring at the bottom of an air track that slopes upwardat an angle of 33.0 degrees above the horizontal. The glider has mass 7.00×10−2 kg. The spring has600 N/m and negligible mass.
A 1600 kg car starts from rest at A, coasts 180m through a dip and comes to stop at B after coasting a distance d on level ground. If the rolling resistance is a constant force of 280N, conclude the distance d.
At launch the space shuttle has an overall upward acceleration of about 5m/s^2, how far inot the air will it travel, assumin that it travels straight up, what is the velocity of the shuttle after 5 seconds
an ideal gas for which cv3r2 is the working substance of a carnot engine. during the isothermal expansion the volume
A small car is pushing a larger truck that has a dead battery. The mass of the truck is twice as large as the mass of car. At one instant of time the car and truck both have an acceleration of 3.5 m/s2. Which of the following statements is true? D..
a hiker throws a stone from the upper edge of a vertical cliff. the stones initial velocity is 25ms directed at 40
Is there anyone who can help me? My paper is due in a few hours and I am really struggling with the Sun and its life cycle presence. I do not understand how the answer can be the same if the Sun is constantly rotating or being rotated by the Earth..
A rescue helicopter lifts a 85.3-kg person straight up by means of a cable. calculate how much work done by the persons weight
betty weighs 433 n and she is sitting on a playground swing seat that hangs 0.36 m above the ground. tom pulls the
Distinguish between organic chemistry and biochemistry. Tell the number of covalent bonds formed by an atom of each of these common elements in organic compounds: C, H, O, S, N, a halogen.
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