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Light of wavelength 390 nanometer is incident on a clean metal surface. The metal has work function 2.60 eV. Find the stopping potential for emitted electrons?
in Volt
The pendulum on a small grandfather 's clock is used to regulate how fast the clock ticks. How long should the rod be so that the pendulum has a period of 2.00 second
Two objects with masses of 2.60 kg and 6.50 kg are connected by a light string that passes over a frictionless pulley. Determine the tension in the string in Newtons
A child is on a swing whose 4.0 m long chains make a maximum angle of 49 degrees with the vertical. What is the child's maximum speed
When you drop a rock into a well you hear the splash 1.0 seconds later. How deep is the well
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 7.96 mm. The nozzle shoots out water moving at 25.5 m/s. What is the volume flow rate
A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. The asteroid has a surface area of 9.5 m2. calculate the equilibrium temperature of the asteroid
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. Find the magnitude of the average force exerted on the water by the blade
The coefficient of static friction among the floor of a truck and a box resting on it is 0.26. The truck is travelling at 84.1 km/hr. What is the least distance in which the truck can stop and ensure that the box does not slide?
An outfielder throws a 0.150 kg baseball at a speed of 39.6m/s and an initial angle of 34° What is the kinetic energy of the baseball at the highest point of its trajectory.
A wire 6.10m long with diameter of 2.00mm has a resistance of 0.0280?. Find the resistivity of the material of the wire
A steel wire having a mass of 3.50 g and a length of 1.00 m is fixed at both ends and has a tension of 1010 N. Find the frequency of the third harmonic
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. What is the work done on the jet by the catapult
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