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a light beam strikes a piece of glass at a 60 degree incidentangle the beam contains 2 wavelengths 450 nm and 700 nm
a frictionless pendulum of length 3 m swings with an amplitude of10 degrees at its max displacement the potential
water is pumped into a storage tank from a well delivering 250 gallons of water in 300 seconds through a pipe of 100
air is trapped above liquid ethyl alcohol in a rigid container if the air pressure above the liquid is 110 atm
a small drop of water is suspended motionless in air by auniform electric field that is directed upward and has a
a worker is to paint the walls of a square room 800 fthigh and 120 ft along each side what surface area in squaremeters
a 105 g samara the winged fruit of a maple tree falls toward the ground with a constant speed of 11 msa what is the
the earth is 93 million miles mi from the sun and its period of revolution is 1 year 315 x 107 s what is the
a battery charger is connected to a dead battery and delivers acurrent of 80 a for 54 hours keeping the voltage across
the refractive index of a transparent material can be determined by measuring the critical angle when the solid is
if 2 waves are traveling through a container with nitrogen gas the amplitude of the first wave is 3cm and the amplitude
an object having a net charge of 24muc is placed in a uniform electric field of 610 nc directed verticallynbsp what is
a rod 147 cm long is uniformly charged and has a total charge ofminus186 muc determine the magnitude of the electric
there are two identical small metal spheres with charges charge and -charge and the distance bw them is r metersnbsp
the speed of light in a certain substance is 89 of its valuein water what is the index of refraction of this
an ocianliner is heading due north with a speed of 85 msrelative to the water a small sailboat is heading 45
one particle has a mass of 300 multiplied by 10-3 kg and a charge of780microc a second particle has a mass of 600
a small immersion heated is rated at 350 w estimate how long it will take to heat a cup of soup assuming this is 250 ml
a cyclotron accelerates two protons directly toward each other each with a speed of 950 kms measured relative tothe
the intensity of the suns light in the vicinity of the earth is about 930 wm2 imagine a spacecraft with a
a house is 500 ft long and280 ft wide and has 80 ft highceilings what is the volume of the interior of the house in
objects of various weights are hung from a rubber band that issuspended from a hook the weights of the objects are
a small birdrsquos wings can undergo a maximum displacement amplitude of 50 cm distance from the tip of the wing to
blood flows through a vein at a rate of 35 mls among other things it contains a protein with a molecular weight of
using newtons law of attraction between two bodies derive a formula for the gravity field as a function of distance x