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Barium has a work function of 2.48 eV. What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 380 nm?
q.1. a particle leaves the origin with an initial velocity 6.67 ms and a constant acceleration - 2.48 - 4.29 ms2.
find the angular displacement of the propeller.
A tire is filled with air at15°C to a gauge pressure of 210kPa. If the tire reaches a temperature of 36°C, what fraction of the original air must be removed
A 22.5-mW laser beam of diameter 1.98 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
A person pushes a crate rightward along a rough horizontal surface by pushing downward at 30 degrees below the horizontal with a force of magnitude F = 50.0 (N). What is the horizontal acceleration ax of the crate
a rock is tossed off the top of a cliff of height 34.5m. its initial speed is 29.1m/s and the launch angle is 30.2degrees with respect to the horizontal. what is the speed with which the rock hits the ground
Two resistors (connected in series with each other) and a 10 Vbattery are connected in a loop. The voltage drop across the firstresistor is 2 V. What is the voltage drop across the second resistor?
Which of the folllowing are traveling faster than their terminal speed? Choose all that apply. A shooting star (meteor)A basketball at the moment it leaves theshooter's hands A penny, 16s after it has been dropped from the top of the Sears TowerA ..
Weak magnetic fields can be measured at the surface of the brain. Although the currents causing these fields are quite complicated, we can estimate their size by modeling them as a current loop around the equator of a 18--diameter (the width of a ..
Suddenly this mass is struck by another 2.00-kg object traveling along the x-axis at 3.00 m/s, and the two masses stick together.
A 10.3 kg block is dragged over a rough, horizontal surface by a 63.6 N force acting at 21° above the horizontal. Find the total change in the block's kinetic energy
A bowling ball, which can be treated as a solid sphere with a diameter of 21.6 cm and a weight of 33 kg, The kinetic energy of the bowling ball is
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