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a rock is thrown from the roof of a building by an initial velocity of 100ms at an angle of 300degree above the
at the same moment one rock is dropped and one is thrown downward with an initial velocity of 21ms from the top of a
a 475 gram ball is traveling horizontally at 120 ms to the left when it is abruptly struck horizontally by a bat
a red laser emits photons by a wavelength of 635 nm1 if this laser has a power of 23 w how many photons does it emit in
a 1000 m long sight rod is viewed by a theodolite which has an objective lens of focal length 240mm the centre support
a surveyor out late accidentally leaves the car lights on each of the two front lights is 40 w and each of the two rear
a ferris wheel has radius 50 m and makes one revolution in 80 seconds a person weighing 670n is sitting on one of the
a 0200 nm photon collides with a stationary electron after the collision the electron moves forward and the photon
two light sources are utilized in a photoelectric experiment to decide the work function for a particular metal surface
an fm radio transmitter has a power output of 130 kw and operates at a frequency of 9600 mhz how many photons per
a spring with a spring constant of 19times102nm is attached to a16 kg mass and then set in motion1 what is the
the body of a 1284 kg car is supported on a frame with four springs the spring constant of a single spring is
two circular coils are concentric and lie in the same plane the inner coil contains 120 turns of wire has a radius of
a proton and a deuteron are accelerated from rest during the same potential dissimilarity a deuteron consists of a
a pair of narrow parallel slits separated by 0240 mm are illuminated with the green component from a mercury vapor lamp
light of wavelength 600 nm falls on a 045 mm wide slit and forms a diffraction pattern on a screen 15 m awaya discover
the size of your eardrum the tympanum partially determines the upper frequency limit of your audible region usually
a unknown mass of silver is pulled from a furnace where the temperature was 900 degrees celsius and placed on a very
a futuristic design for a car is to have a large disk-like flywheel within the car storing kinetic energy the flywheel
a resistor has a resistance r and a battery has an internal resistance r when the resistor is connected across the
a uniform plank the length of 61 m weight of 445 n rests on the ground and a frictionless roller at the top of a wall
a 30 g bullet traveling at 350 ms hits a tree and slows down uniformly to a stop while penetrating a distance of 12 cm
a charged cloud system produces an electric field in the air near earths surface a particle of charge -16 x 10-9 c is
is it possible for a human to be born with gill slits a tail and webbed digits why or why
if a 1120 mole sample of a compound has a mass of 1393g explain what is the molecular formula of the