What current must be maintained in a square loop (50 cm on a side) to create a torque of 1.0 N ? m about an axis through its center and parallel to one of its sides when a magnetic field of magnitude 70 mT is directed at 40° to the plane of the loop?
A. 66 A
B. 89 A
C. 61 A
D. 75 A
E. 37 A
Answer: D
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Pressure in a Liquid: What force does the water exert (in addition to that due to atmospheric pressure) on a submarine window of radius 44.0 cm at a depth of 9400 m in sea water? The density of sea water is 1025 kg/m3.
A.
| 5.74 × 107 N |
B. 5.74 × 1011 N
C. 2.87 × 1011 N
D. 1.83 × 107 N
E. 2.87 × 107 N
Like our own moon, many Jovian moons exhibit what is called synchronous rotation. This means that they rotate at the same rate
A) that their host planet rotates B) as all other moons around the host planet C) that the host planet orbits about the Sun D) that they orbit their host planet
A hydrogen atom is in the 6h state. Which one of the following is not a magnetic quantum number?
A) 0 B) 1 C) 2 D) 4 E) 6
A block is on a frictionless table, on earth. The block accelerates at 3.0 m/ when a horizontal force is exerted on it
The block and table are set up on the Moon, where the acceleration of objects due to the gravitational attraction is 1.62 m/ . The weight of the block on the Moon is closest to A) 11 N. B) 9.5 N. C) 8.1 N. D) 6.8 N. E) 5.5 N.