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Light from a helium-neon laser (l=608 nm) passes through a circular aperture and is observed on a screen 2.15 m behind the aperture. The width of the central maximum is 2.24 cm. What is the diameter (in mm) of the hole? Have seen other answers on chegg; but don't understand solutions.
A person exerts a horizontal force of F = 179N in the test apparatus shown in the drawing. (h = 0.33 m.) Determine the horizontal force M that his flexor muscle exerts on his forearm.
A step-up transformer has 300 turns on its primary coil and 90000 turns on its secondary coil if the current flowing through the secondary is 5 amps what is the current flowing in the primary.
A mass system with a spring constant of 66.0 N/m undergoes simple harmonic motion with a period of 0.628 s. what is the total energy of the oscillation
A puck of mass 80.0 g and radius 4.30 cm slides along an air table at a speed of 1.50 m/s, What is the Angular Speed about the center of mass
Find speed of the block at the bottom of the ramp. What is tangential acceleration of a bug on the rim of a 78 rpm record of diameter 7.41 in. if the record moves from rest to its final angular speed in 4 s.
A wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time.
question1a piece of wire with mass per unit length 78 runs horizontally at right angles to a horizontal magnetic field.
A camera with interchangeable lenses is used to photograph a distant object. The angular size of the object is 19 degrees. What is the longest focal length lens
When connected in series to a 110-V line, two resistors use one-fourth the power that is used when they are connected in parallel. what is the resistance of the other
An ocean liner leaves New York City and travels 13° north of east for 268 km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the following directions.
A 65 g bullet is fired from a rifle having a barrel 0.560 m long. Assuming the origin is placed where the bullet begins to move, Determine the work done by the gas on the bullet as the bullet travels the length of the barrel
A 360 kg piano slides 2.5 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline
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