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ultraviolet light with a frequency of 3.0x10^15 Hz strikes a metal surface and ejects electrons that have a maximum kinetic energy of 7.43 ev. what is the work function of the metal?
The rectangle shown in Figure P3.57 has sides parallel to the x and y axes. Find the perimeter of the rectangle
The drag force on an object depends on the dimensionless drag coefficient, the density of air, the object velocity, and the frontal area of the object. By only considering units obtain a relation for the drag force
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. As a sedan passes by the first cruiser, its speed is measured to be 99.7 mph.
You buy an ice cream cone. The cone you are given is filled with melted ice cream of density 1.2g/cm^3. Find the pressure at the bottom of the cone
As a 1.00 cm diameter plunger reduces the height of the column of air inside the chamber from 7.00cm down to 0.50cm, the temperature inside increases from 20C to 210C. Determine the air pressure inside the chamber (in atm) after compression if the..
In a railroad yard, a 3.5×10^4 kg boxcar moving at 6.0 m/s is stopped by a spring-loaded bumper mounted at the end of the level track
A circuit consists of a 259- resistor and a 0.260-H inductor. Determine the phase angle between the current and the voltage of the generator. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise
A wave has the following properties: amplitude = 0.208 m, period = 0.687 s, wave speed = 13.7 m/s. The wave is traveling in the -x direction
A 2.36 kg mass with an initial velocity of v1 = aˆi, where a = 5.75 m/s collides with, Find the final speed of the composite mass
From the shore of a frozen lake, Eli Manning throws a 2 kg football at a velocity of 20 m/s. What is their velocity immediately after they catch it
Consider an equilateral triangle 12cm on a side. If a charge of 6*10^-5 C is placed at each vertex, find the force on the top charge
A disk 8.00 cm in radius rotates at a constant rate of 1,200 rev/min about its central axis. Determine its angular speed in radians/sec
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