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the planet mercury takes only 88 earth days to orbit the sun assume the motion is uniform in a nearly circular orbit
a drum of chemical waste has a lid with a radius of 350 cm to open the thing a torque of 367nm is required with what
a 15kg rock is whirled around in a flat circle at the end of an 85cm string it has a linear speed of 180 ms what is the
when pulling a mass hanging from a spring at a constant rate down then releasing it so it bobs up and down where does
a women drove to work at an average speed 40 miles per hours and returned along the same route at 30 miles per hour if
how much is the time measured by an astronaut in a spaceship for a class on the earth that lasts for one hour the time
an electron with a speed of 400times106 ms collides with an atom the collision excites the atom from its ground state
an electron is in a certain energy state in a one-dimensional infinite potential well from x 0 to x l 200pm the
the international space station iss orbits the earth at an altitude of 350km above the surface it takes 90min to
a light beam is incident on a piece of sodium chloride n 1544 at the brewsters anglea find the value of brewsters
a how much heat must be absorbed by ice of mass m 720 g at -10 degrees celsius to take it to liquid state at 15
a girl is strapped to a board that is moving so that gamma along the length of the board is 20 the board and direction
the secondary coil of a neon sign transformer provides 7500 v at 100 ma the primary coil operates on 120 v what does
the critical angle of a certain piece of plastic in air is c 373ordm what is the critical angle if the piece of
the distance from the eyes lens to the retina is 19cm what is the power of your eye when you read a book that is 350 cm
one 20-year-old twin brother takes a space trip with a speed of 080c for 30 years according to a clock on the spaceship
a microwave oven with microwaves 122 cm long has a power output of 760 watts find the number of photons emitted per
a small plastic sphere with a charge of - 50 nc is near another small plastic sphere with a charge of - 12 nc if the
a solenoid is 20 m long and with an inner radius of 30 cm and 1000 turns of wire when running the solenoid produces a
you have a 10 m long copper wire you want to make an n -turn current loop that generates a 10 mt magnetic field at the
a circular loop of wire has an area of 03 m2 it is tilted by 45deg with respect to a uniform 040 t magnetic field what
a solid conducting sphere of radius a carries an excess charge of 6 microc this sphere is located at the center of a
on a day when the wind is blowing toward the south at 3 ms a runner jogs west at 4 ms using the vector addition
consider a capacitor c being discharged through a resistor r as shown in figure a the initial potential difference
how does the count rate vary with distance from a point source if the counter is moved twice the distance from the