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A beam (diameter 1.2 mm) from a laser pointer is bounced off a polished steel ruler with one millimetre wide divisions etched into the steel. A diffraction pattern is observed on a screen 20m away from the ruler, and the distance between the central bright fringe and the fifth dark fringe on either side is 7.32 cm. what is the wavelength of the laser pointer light?
In the series RLC circuit which consists of a 150-ohm resistor, a 1.27x10^-6 F capacitor, and a 0.035 H inductor, 60.0Hz power supply. What is the phase angle between the current and the voltage?
Calculate the angle theta?
Two identical loudspeakers are placed on a wall 3.00 m apart. A listener stands 5.00 m from the wall directly in front of one of the speakers. A single oscillator is driving the speakers at a frequency of 300 Hz.
A thermo pane window consists of two glass panes, each 0.50 centimeter thick, with a 1 centimeter thick sealed layer of air in between. If the inside surface temperature is 23.2°C and the outside surface temperature is 0.0°C, obtain the rate of ene..
a box rests on a frozen pond which serves as a frictionless horizontal surface. if a fisherman applies a horizontal
There are four charges, each with a magnitude of 2.0 µC. Two are positive and two arenegative. The charges are fixed to the corners of a 0.33 m square, one to a corner, in such a way that the net force on any charge is directed toward the center o..
Two parallel current carrying wires are separated by 12 cm and each are 50 cm in length. Determine the Force acting on each wire due to the other one
a massless pan hangs from a spring that is suspended from the ceiling. when empty the pan is 52 cm below the ceiling.
question1a hollow sphere of radius 0.15 m with rotational inertia 1 0.040 kgm2 about a line through its center of mass
An operating gearbox (transmission) has 200. hp at its input shaft while 190. hp are delivered to the output shaft. Determine the rate of entropy production by the gearbox
The mass of the moon is 7.36 × 1022 kg and its distance to the Earth is 3.84×108m. What is the gravitational force of the moon on the earth
aa projectile is fired from a gun that is 69.0m above flat ground emerging from the gun with unknown horizontal speed.
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