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Two charges Q1= 45 nC and Q2= 44 nC are in rest on the horizontal axis. The distance between the charges is 0.84 m. What is the value of the magnetic field at the point between the charges which is 0.44 m away from charge Q1? Express the answer as a whole number.
an ideal gas is taken through a carnot cycle. the isothermal expansion occurs at 250 degc and the isothemal compression
if 400 kcal is added to a gas that expands and does 1000 kj of work what is the change in the internal energy of the
a 15 m long string of mass 1.8 kg is streched such that the tension in the string is 25 n. a wave of frequency 20 hz is
Consider a line that is 1.4 m long. A moving object is somewhere along this line, but its position is not known. Find the minimum uncertainty in the momentum of the object
The windings of a DC motor have a resistance of 6.0 O. The motor operates on 120. V AC, and when running at full speed it generates a back emf of 105. V. What is the starting current of the motor
Find the motional EMFinduced between the ends of the cable. Assume, and state, what the angle should be between the cableand the magnetic field to get the largestEMF
A 715 N man stands in the middle of afrozen pond of radius 5O m He is unableto get to the other side because of a lack of friction between hisshoes and the ice To overcome this difficulty, he throws his 1.2kg physics textbook horizontally toward t..
a an electrostatic field line is a continuous curve. that is a field line cannot have sudden breaks. why not?b explain
What is the smallest number of whole bricks (including the one on the ground) that can be stacked so that their weight creates a pressure of at least two atmospheres on the ground beneath the first block? (Hint: First decide which face of the bric..
A large cylindrical loop of 288 turns and radius 67.0 cm carries a current of 70.0 A. find the induced emf in the small loop
At one time, television sets used "rabbit-ears" antennas. Such an antenna consists of a pair of metal rods. The length of each rod can be adjusted to be one-quarter of a wavelength of an electromagnetic wave whose frequency is 125 MHz. How long is ea..
A radio station broadcasts a signal at a frequency of 800 kHz. at a point 100 km from the transmitter the magnetic field amplitude of the electromagnetic wave from this station is 5.00 * 10^-11 T.
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