Determine the work done by the electric force
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.087 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside?
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The average number of television sets in the sample households turns out to be 2.56, and the SD is 0.73. What is the observed value for the average number of television sets per household?
A 600 MW coal-fired power plant has an overall thermal efficiency of 38%. It is burning coal that has a heating value of 12,000 Btu/lb, an ash content of 5%, a sulfur content of 3.0%, and a CO2 emission factor of 220 lb/million Btu.
Suppose that 10% of all steel shafts produced by a process are nonconforming but can be reworked (rather than having to be scrapped). Consider a random sample of 200 shafts, and let X denote the number among these that are nonconforming and can be
Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 3.03 × 10-6 kg. The gravitational force that each sphere exerts on the other is balanced by the electric force. Determine the charge magnit
Find the value of the reduced volume both fluids would have at Tr = 3/2 and Pr = 3. Find the temperature, pressure and volume of each gas at Tr = 3/2 and Pr = 3.
Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.58 m from it. Find the ratio qB/qA of the charg
At 45 degrees celsius latitude, the gravitational acceleration as a function of elevation. Determine the height above sea level where the weight of a subject will decrease by 1 percent.
A wire carries a current of 0.59 A. This wire makes an angle of 68° with respect to a magnetic field of magnitude 4.0 × 10-5 T. The wire experiences a magnetic force of magnitude 8.1 × 10-5 N. What is the length of the wire?
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