12 weeks test review

By jacob_n299, Nov 2010

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kevin and sandy push a cart with a force of 7lbs and 8lb. respectively, in the same direction.the magnitude of the resultant is?	15lbs.
A generator produces a current of one ampere. how many electrons are induced in the coils in one second?	6.25*10^18
500 milliamperes equals?	1/2 ampere.
one ampere equals?	one coulomb per second
one milliampere of electric current equals?	0.001 amperes.
one microampere equals?	1*10^-6 amperes
find the charge that the flows through an electric toaster in 1 min.if the toaster is rated at 7 amperes.	420 coulombs
a boxplaced on a conveyor belt, moving at a constant speed, travels 240 ft in 2 min. what is the speed of the box and the conveyor in feet per second?	2 feet per second
angular rate is expressed in which terms	radians per second
in the SI system, the acceleration of gravity is?	9.8 meters per second squared
the term RPM refers to ?	revolutions per minute
An electric motor that is connected to an overhead crane lifts stacks of reinforcement rods. each stack of rods weighs 3000 newtons how much work is done by the motor if it lifts 5 stacks of rods 50 meters?	750,000 joules
48000 joules of work is done in an electrical circuit when 8000 coulombs of electrical charge is moved.what voltage difference cause the charge to move	6 volts
27000 joules of work is done in an electrical circuit when 3300 coulombs of electrical charge is moved.what voltage difference causes the charge to move	8.18 volts

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