Which of the following increases the magnetic moment of a rectangular coil the most?
1.doubling the coil's current and its number of turns
2.doubling the coil's area and doubling the magnetic field in which the loop is placed
3.doubling the magnetic field in which the coil is placed and doubling the angle between the magnetic field and the plane of the loop
4.All of these choices increase the magnetic moment by a factor of 4, thus they are all the "most".
1
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An ideal gas composed of a mixture of oxygen and nitrogen is at a pressure of 1.50 atmospheres and a temperature of 25.0
What is the molar density?
A. 79.3 
B. 61.3
C. 55.5
D. 47.6
E. 40.0
A plate sliding into a subduction zone can trigger ____
a. midocean rise b. cratering c. volcanism d. hurricanes e. erosion
What is the mass of a ball moving at 3 m/s with a momentum of 48 kg?m/s?
A) 4 kg B) 12 kg C) 16 kg D) 144 kg E) none of these
When the temperature of a fixed volume of air initially at 0° C is lowered by 1 degree, its pressure
A) decreases by 1/273. B) decreases by 100/273. C) increases by 1/273. D) increases by 100/273.