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two lightbulbs have cylindrical filaments much greater in length than in diameter the evacuated bulbs are identical
in this section assume the sound speed in air is 343 ms a goose flying toward you at 113 ms emits a squawk which you
a 12 kg runaway grocery cart runs into a spring with spring constant 240 nm and compresses it by 60 cm what was the
a laser beam is traveling through an unknown substance when it encounters a boundary with air the angle of reflection
the radar system transmits 1875 ghz from a circular antenna with a diameter 23m at a range of 62km what is the smallest
high-frequency sound waves exhibit less diffraction than low-frequency sound waves do however even high frequency sound
a tank of gasoline n 140 is open to the air n 100 a thin film of liquid floats on the gasoline and has a refractive
you are standing in air and are looking at a flat piece of glass n 152 on which there is a layer of transparent
which of the following quantities vary as a sine function or a cosine function of time for a particle that is executing
a 110 g bullet is fired horizontally into a 109 g wooden block that is initially at rest on a frictionless horizontal
suppose your body was able to use the chemical energy in gasoline how far could you pedal a bicycle at 15 kmhr on the
waves of amplitude 24 cm move along a 2-m string that has a mass of 5 g and a tension of 160 n what is the power
a rocket is launched at an angle of 520deg above the horizontal with an initial speed of 96 ms the rocket moves for 300
a particle is executing simple harmonic motion with an agular frequency w278hz what are respectively the period and
a wedding ring is tossed into the air and given a spin resulting in an angular velocity of 193 rotations per second the
a string 20 m long has a mass of 24 x 10-2 kg when fixed at both ends it vibrates with a fundamental frequency 150 hz
a wedding ring of diameter 189 cm is tossed into the air and given a spin resulting in an angular velocity of 169
a 20-kg block is attached to a spring with a spring constant of 24nm if the spring is stretched 10 cm from its
a wire of length l 120 cm is moving with constant velocity in the xy-plane the wire is parallel to the y-axis and
a disk-shaped merry-go-round of radius 302 m and mass 159 kg rotates freely with an angular speed of 0635 revs a 541-kg
a motor has a single loop inside a magnetic field of magnitude 0581 t if the area of the loop is 3050 cm2 find the
a block of mass is pushed up against a spring with spring constant until the spring has been compressed a distance from
an elastic circular conducting loop expands at a constant rate over time such that its radius is given by rt r0 vt
a string that is 200 cm long and has a mass per unit length of 800 10-3 kgm is stretched to a tension of 180 n a find