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a 10m long bar is attached by a hinge on a wall and held horizontal with a rope that makes an angle of 49 degrees from
monochromatic light of wavelength 416 nm passes during a diffraction grating the third order image is separated from
a thin uniform rod with negligible mass and length 0200 m is attached to the floor by a frictionless hinge at point p a
a 48 m diameter merry-go-round is rotating freely with an angular velocity of 0725 rads its total moment of inertia is
a large piece of cork weighs 0200 n in air when held submerged underwater by a spring scale as shown in the figure
a 3700-omega resistor and a 16-microf capacitor are connected in series across a generator 600 hz 120 v rms decide the
perfectly when a thermometer is utilized to measure the temperature of an object the temperature of the object itself
a rod has a cross-sectional area of 0001615 m2 when the rods temperature is 1223degc it is placed among two rigid walls
the density of a straight wire of length 45cm is uniform discover the total mass of the wire and prove using
a circular coil of wire 389 cm in diameter has a resistance of471 omega it is located in a magnetic field of 058 t
a futuristic design for a car is to have a large disk-like flywheel within the car storing kinetic energy the flywheel
a rope is wrapped around a wheel of radius r 20meters the wheel is mounted with frictionless bearings on an axle
a transverse sinusoidal wave on a string has a period t 150 ms and travels in the negative x direction with a speed of
a a magnetic field of 14 t is perpendicular to a square coil of 14 turns the length of each side of the coil is 4 cm
a 49 m diameter merry-go-round is rotating freely with an angular velocity of 0780 rads its total moment of inertia is
a figure skater through her finale can increase her rotation rate from an initial rate of 109 revolutions every 182 s
estimate the average number of atoms comprising a bacterium for example escherichia coli assume that the bacterium is a
a 30 kg ball has a velocity of 25 ms downward now before it strike the ground and bounces up with a velocity of25 ms
a bicycle wheel has an initial angular velocity of 72 rads after turning during one-half of a revolution the angular
a 900 kilogram box of book slides from rest down a frictionless incline from a height of 50 m a constant frictional
the angular momentum of a flywheel having a rotational inertia of 0250 kgmiddotm2 concerning its central axis decreases
a pen contains a spring with a spring constant of 231 nm when the tip of the pen is in its retracted position the
if a star converted every bit of its mass into energy the conversion efficiency would be 100 but the sun converts
an object on a horizontal spring oscillates by a period of 1 s if the object is suspended from the spring vertically by
a simple pendulum is swinging back and forth during a small angle its motion repeating every 115 s how much longer must