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Suggest a proper answer with proof for if frequency of incident radiation is doubled, what will be the effect on maximum kinetic energy of photo electrons.
The force F3, 6.17 N, acts on the block at an angle of 152.02 degrees. what is the work done by the force F3
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.795 s to reach the opposite tower, 20.0 m away. If a 1 meter length of ..
find out the magnitude of force exerted on the lower end of the boom by the hinge.
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.60 m above. The brother's outstretched hand catches the keys 1.20 s later.
If the gas pressure and volume both double, what's the change in internal energy, find the internal energy of 1mol of oxygen at 291K and 1.0 atm
A speeder is pulling directly away and increasing his distance from a police car that is moving at 21 m/s with respect to the ground. compute the speeder's speed with respect to the ground
A rectangular plate has a length of (20.4 0.2) cm and a width of (8.7 0.1) cm. Calculate the area of the plate
A hill that has a 25.7% grade is one that rises 25.7 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?
The fastest pitched baseball was measured at 46 m/s, what force did he produce on the ball during this record-setting pitch
A 0.50 kg mass is attached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. Find the potential energy stored in the spring when the mass is at its maximum displacement
A certain lightbulb has a tungsten filament with a resistance of 19.1 ? when at 20.0°C and 139 ? when hot, Find the temperature of the hot filament
A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 8.24 m long and has a radius of 0.402 cm. How much has the cable stretched
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