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1. By pushing one of the keys on his computer keyboard, Kevin causes the circuitry to send a current of 2.4 microAmps during a time interval of 5.0 nanoseconds. How much charge flowed during this time?
2. An electron is accelerated from rest through a potential difference of 2.50 kV.
A. After this acceleration, how large is its kinetic energy, in eV?
B. What is its resulting speed?
C. What would be its de Broglie Wavelength?
What is the magnitude of the electric force on an electron in a uniform electric field of strength 1510N/C that points due east
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
When 165 V is applied across a wire that is 14 m long and has a 0.31 mm radius, Find the resistivity of the wire
An airplane wing is designed so that the speed of the air across the top of the wing is 259 m/s when the speed of the air below the wing is 193 m/s. determine the height of the building
Two narrow slits 41 µm apart are illuminated with light of a wavelength 604 nm. What is the angle of the m=3 bright fringe in degrees.
The dial on an AM radio contains numbers ranging from about 530 to about 1600. What is the corresponding range of wavelengths
You're an accident investigator at a scene where a drunk driver in a 1900 kg car has plowed into a 1800 kg parked car with its brake set. What do you report for the drunk driver's speed just before the collision
determine the speed of the ball after the ball. A positive charge q is fired by a small hole in the positive plate of a capacitor.
The resistor is connected in series with total set of lightbulbs. What is the value of the resistance? What is the power loss in the resistor.
The solar wind is a thin, hot gas given off by the sun. Charged particles in this gas enter the magnetic field of the earth and can experience a magnetic force, calculate the radius of the circular path on which the particle would move if it were a..
A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, Find the velocity (magnitude and direction) of the ball just before the collision
A railroad car with a mass of 2.46 x 10^4 kg moving at 3.25 m/s collides and joins with two railroad cars already joined together, each with the similar mass as the single car and initially moving in the same direction at 1.49 m/s.
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