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Nichrome wire of cross-sectional radius 0.750 mm is to be used in winding a heating coil. If the coil must carry a current of 9.00 A when a voltage of 2.40 102 V is applied across its ends, find the following.
(a) the required resistance of the coil ?
(b) the length of wire you must use to wind the coil m.
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated with the radius of the atom, what is the kinetic energy of this orbital electron
A 4.60-g lead bullet traveling at 320 m/s is stopped by a large tree. what is the increase in temperature of the bullet
A small glass bead has been charged to +30.0nC. What is the charge on the ball bearing
The volume of an ideal gas is adiabatically reduced from a volume of 200 L to a volume of 74.3 L. How many moles are in the gas
An proton (m = 1.67 ´ 10-27 kg and q = 1.6 ´ 10-19 C) travelling at 2.7 × 105 ms-1 enters a magnetic field of 1.2 T at right angles to the direction of motion of the electron. What is the centripetal force on proton.
An organ pipe is 119 cm long. What are the fundamental and first three audible overtones if the pipe is closed at one end.
A 2.5-kg block is attached to a spring with k=100 N/m and compress it with a distance of 0.40 m. What is the mechanical energy of the block
Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1600 kg and was approaching at 7.00 m/s due south. Calculate the final velocity of the cars
Ocean waves (on a particularly nice summer day) move past at 1.8 waves/s. find the speed of the waves
A 2.0m length of metal wire is connected to a 1.5 V battery, and a current of 5.0mA flows through it. What is the diameter of the wire
Two point charges 1.6cm apart have an electric potential energy -160?J . The total charge is 25nC. What are the two charges
question1a space station is constructed in the shape of a wheel 20 in diameter with essentially all of its 5.1times105
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