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consider the bead threaded on a circular hoop of example 76 page 260 working in a frame that rotates by the hoop
a microwave oven has a power requirement of 1256 w a frozen dinner requires 52 min to heat on full power1 how much
using a thin lens with a focal length of f 52cm a student makes two measurements she finds the distance to the object
an iron ball is swung in a vertical circle at the end of a 07 m string how slowly in fts can the ball go during its top
a 2000 kg flat-bottomed boat floats in fresh water which has a density of 10000 kgm3 assuming that the base of the boat
a 10 turn square coil has an area 140 cm2 and is rotated by an angular speed of1900 rads in a uniform 010 t magnetic
the owner of a van installs a rear-window lens that has a focal length of -0320 m when the owner looks out during the
to make the dial of a watch glow in the dark 120e-9 kg of radium226ra is used the half-life of this isotope is 160e3 yr
the shock absorbers in the suspension of a car are in such bad shape that they have no effect on the behaviour of the
a string fixed at both ends is 881 m long and has a mass of 0120 kg it is subjected to a tension of 920 n and set
a 6220 kg space probe moving nose-first toward jupiter at 140 ms relative to the sun fires its rocket engine ejecting
a rope applies a force t 500n on a 30kg mass up a 28 degree incline it travels 14m along the incline the coefficient
monochromatic light from a distant source is incident on a slit0700 mm wide on a screen190 m away the distance from the
coherent light of frequency 6201014 hz passes during two thin slits and falls on a screen 800 cm away you observe that
two slits spaced 0445 mm apart are placed 550 cm from a screen what is the distance among the second and third dark
two radio antennas a and b radiate in phase antenna b is 160 m to the right of antenna a think about point q along the
1 how would it affect the image distance2 what if the index of refraction were twice the value of the original3 what
the focal length of the eyepiece of a certain microscope is160 mm the focal length of the objective is 700 mm the
the focal length of a simple magnifier is 700 cm suppose the magnifier to be a thin lens placed very close to the eyea
an extremely thin film of soapy water n 126 sits on top of a flat glass plate with n 151nbsp the soap film has a red
a solid sphere of uniform density has a mass of 90 times104 kg and a radius of 27 m what is the magnitude of the
a mass on a spring has an angular oscillation frequency of 256rads the spring constant is 272 nm and the systems
a proton moves 68 cm on a path parallel to the direction of a uniform electric field of strength 28 nc what is the
a student throws a 0140kg ball straight upwards to a height of 720 m how much work did the student do ja 338 kg child
65kw is to arrive at a town over two 0100-omega lines estimate how much power is saved if the voltage is stepped up