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1) What does it mean for an object to become electrically charged ?
2) What is polarization?
3) Describe the process of charging an object by contact ?
4) Describe the process of charging an object by induction ?
1400 kg car acelerates from 45mph (20.1 m/s) to 65mph (29.1m/s) over a distance of 440 m in 35 s. what is the network done on the car by all forces acting on it
question prove that the formula for the sum of the measures of the interior angles of a n-gon is 180n-2 or 180-360
a point charge 6.50rm nc is at the center of a cube with sides of length 0.300rm m. what is the electric flux through
A spinning flywheel has rotational inertia I = 403.9 kg · m2. What is the frictional torque acting
A good model for a radio antenna is a dipole. P1 is on the perpendicular bisector of the dipole, and P2 is along the axis of the dipole in the direction of dipole vector ˆp. P1 and P2 are both a distance 100m from the center of the dipole.
You can simulate radioactive decay by tossing pennies. Assemble a collection of as many pennies (or other coins) as you can; around 100 would be ideal. What is the half-life in numbers of tosses
Find the direction of the net electrical force electrons will exert on the proton. Enter your answer as an angle measured relative to the line connecting the proton and the right electron with counterclockwise being positive.
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin (2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 35.0 N/m.
One runner ran the 100-m dash in 11.9 s. Another runner came in secona at 12.4 s. Assuming that the runners traveled at their average speeds for the entire distance, determine the sepaaration between the two runners when the winner crossed the fin..
What the max speed of the oscillator?
A rectangular sample of a metal is 3.5 cm wide and 475 µm thick. When it carries a 42 A current and is placed in a 0.8 T magnetic field it produces a 6.5 µV Hall emf, Determine the Hall field in the conductor
A wire with a resistance of 4.5 ? is drawn out through a die so that its new length is 4 times its original length. Find the resistance of the longer wire
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