Find out the electric field at the center of the square
Four point charges are placed at the corners of a square of side 0.20 m. The top two charges are 16 µC and the bottom two are -16µC. Find the electric field at the center of the square.
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A recent survey indicated that the average yearly salary of middle school teachers in Wichita, Kansas, is 45,000 with a median of 38,000. Is this salary distribution normal? If not, which direction is the data skewed?
A heat lamp emits infrared radiation whose rms electric field is Erms = 3500 N/C. (a) What is the average intensity of the radiation? (b) The radiation is focused on a person's leg over a circular area of radius 3.4 cm. What is the average power d
Upon quenching the steel from 950 degree Celsius to 50 degree Celsius what phases will be present what will be the composition?
Calculate the mass of the Sun noting that the period of the Earth's orbit around the Sun is 3.156 107 s and its distance from the Sun is 1.496 1011 m.
Twenty dietary iron tablets with a total mass of 22.131 g were ground and mixed thoroughly. Then 2.998 g of the powder was dissolved in concentrated HNO3 and heated to convert all the iron to Fe3+.
A boy of mass 46.2 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.2 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard.
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A new cellular phone billing plan cost $15 per month plus $1 for each minute of use. If the number of minutes you use the phone in a month is a geometric random variable with expected value 1/p, what is the expected monthly cost of the phone?
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