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when light of a wavelength of 200 nm is incident on a surface, the maximum kinetic energy of the photoelectrons is measured to be 6.0 x 10^-19 J. What is the work function of the surface?
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A 0.900 kg hammer is moving horizontally at 9.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact. (s) What was the average force exerted on the nai ...
Question: You're the CEO of a courier company, and you decide to select an electric car for your fleet of vehicles. A particular car has a mass of 1500 kg and is powered by 26 12-V batteries connected in series, for a to ...
Question: A simple pendulum oscillates with frequency f. (a) What is its frequency if the entire pendulum accelerates at 3/4g upward? (b) What is its frequency if accelerates at 0.75g downward? The response must be typed ...
Question: A stone is thrown vertically upward with a speed of 24.0m/s. a) how fast is it moving when it is at a height of 13.0m? I got 17.9 m/s b) How much time is required to reach this height? I got 4.28s and 6.20s c) ...
Question: A proton accelerates from rest in a uniform electric field of 610 N/C. At some later time, its speed is 1.4 106 m/s. (a) Find the magnitude of the acceleration of the proton. m/s2 (b) How long does it take the ...
Question: The pressure at the top of the water in a city's gravity-fed reservoir is 1.0 x 105N/m2. Part A: Determine the pressure at the faucet of a home 39 m below the reservoir. Express your answer to two significant f ...
Question: A solid gold bar is pulled up from the hold of the sunken RMSTitanic. (a) What happens to its volume as it goes from the pressure atthe ship to the lower pressure at the ocean's pressure? (b) The pressure diffe ...
A woman wishing to know the height of a mountain measures the angle of elevation of the mountaintop as 12°. After walking 1.23 km closer to the mountain on level ground, she finds the angle to be 15.8°. Find the height o ...
After deploying her parachute, a skydiver falls through the air with a constant speed of 8.00 m/s . As she falls, there is a constant breeze blowing west at 2.50 m/s. At what angle from the downward vertical does the par ...
Question: You're driving down the highway late one night at 16 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your ca ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
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Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As