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Electrons in a photoelectric effect experiment emerge from a copper surface with a maximum kinetic energy of 1.10eV. What is the wavelength of the light? Answer must be in nm units.
A sled rests at the top of a 25° slope 80 m in length. If ?k =.25, and the velocity at the bottom of the incline is 20 m/s, what is the weight of the sled
A graph of the Force applied to a spring and the distance it stretches F vs. x yields some valuable information. What does the slope of the linear line
A copper block is removed from a 300^0 C oven and dropped into 1 L of water at 20.0^0 C. The water quickly reaches 25.5^0 C and after that remains at that temperature. What is the mass of copper block.
explain how much charge is on each plate. What is the work done by the field on the electron.
The speed of a bobsled is increasing because it has an acceleration of 2.4 m/s^2. At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 450 N. The mass of the bobsled and its riders is 270 k..
White light is incident normally on a thin soap film having an index of refraction of 1.34. What is the thickness of the soap film
a square coil of wire containing a single turn is placed in a uniform 0.30 t magnetic field as the drawing shows. each
the mass of a string is 9.0 x 10-3 kg and it is stretched so that the tension in it is 240 n. a transverse wave
My professor today stated that if a ball was to fall a certain height, then the work done by gravity on the ball would equal the work done by the ball's equal and opposite gravitational pull. By W=F*d, this means that the earth must travel the ..
An electric car accelerates for 8.0 s by drawing energy from its 305-V battery pack. Find the minimum horsepower rating of the car
A rail car that weighs 40 N is accelerated at 6.9 m/s/s for 4.9 seconds. How much work is done on the rail car
The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
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