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two separate radioisotopes a and b with two different half lives t12a302 days and t12b828 days are used in a laboratory
a battery has an emf e and an internal resistance r when the battery is connected to a 20 omega resistor the current
a block is weighing 100 newton is pushed on a horizontal table at constant velocity by a 25 newton force oriented
an electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field ba obtain the
a ball of clay weighing 05 kilogram is thrown at a pendulum bob at rest weighing 4 kilogram the clay is thrown with a
a ball is dropped from rest from a tower and falls for 3 sec before it hits the ground estimate how high is the tower
find what angle does the vector that points from the origin of the x-y plane to the point 20 30 make with respect to
a wrench is used to loosen a diamond-headed bolt the distance between the head of the bolt and where the force is
two identical capacitors are connected in parallel and each acquires a charge qo when connected to a voltage source vo
a 10 kilogram block rests on the edge of a spinning merry-go-round a horizontal spinning disk the radius of the
a carnot engine has 40 gram of helium gas as its working substance it operates between two reservoirs of temperatures
a block with a mass of 1 kilogram is attached by a light weight but strong rope to a second block with a mass of 2
a nitrogen molecule is initially in a large volume of calm air at stpa determine how many collisions does the nitrogen
a trailer has a mass of 1000 kilogram and starts out traveling at 20 meter per second the truck towing the trailer
a baseball is thrown upwards at a 45o angle with respect to the ground its initial speed is 25 meter per second
a block of mass 10 kilogram is pulled by an 80 newton force across a table top the force is parallel with the table top
a 122 m long piece of wire is connected to a 49 v battery the cross-sectional area of the wire is 2011e-6 m2 the wire
a singly charged ion completes five revolutions in a uniform magnetic field of magnitude 486e-2t in 180 milliseconds
a proton that is initially at rest is accelerated through an electric potential difference of magnitude 500 volt
a positive charge of 460 microc is fixed in place from a distance of 440 centimeter a from the fixed positive charge a
a flat sheet of ice has a thickness of 27 centimeter it is on top of a flat sheet of crown glass that has a thickness
in a mass spectrometer a single charged particle charge e has a speed of 10 x 106 ms and enters a uniform magnetic
200 gram of ice at 0degc is dropped into a calorimeter of negligible heat capacity containing 350 gram of water at
an object is located 100 centimeter in front of a lens of focal length 20 centimeter a second lens is located 35
with respect to the earth object 1 is moving at speed 090c to the right object 2 is moving in the similar direction at