All quarks have 1/3 the electric charge of an electron
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following is not caused by the Coriolis effect on Earth?
A) Water going down a drain swirls in opposite directions in the northern and southern hemispheres. B) Earth's global circulation cells are split into three separate cells in each hemisphere. C) Hurricanes swirl in opposite directions in the northern and southern hemispheres. D) Air or objects moving northward in the northern hemisphere are deflected to the east.
A particle (charge = Q) is kept in a fixed position at point P, and a second particle (charge = q) is released from rest when it is a distance R from P. If Q = +2.0 mC, q = -1.5 mC, and R = 30 cm, what is the kinetic energy of the moving particle after it has moved a distance of 10 cm?
a. 60 kJ b. 45 kJ c. 75 kJ d. 90 kJ e. 230 kJ
Young's Modulus: A piano wire has a radius of 0.50 mm. One end is fixed and the other is wrapped around a tuning peg, which has a diameter of 3.5 mm and is 80 cm away. After the wire just becomes taut, the peg is given three full turns. What is the tension in the wire? Young's modulus for steel is 2.0 × 1011 N/m2.
A. 3.8 kN B. 4.3 kN C. 6.5 kN D. 8.7 kN E. 9.8 kN
During the fusion process, mass is converted into energy
Indicate whether the statement is true or false