A metal rod of length L in a region of space where a constant magnetic field points into the page rotates clockwise about an axis through its center at constant angular velocity ?. While it rotates, the point(s) at lowest potential is(are)
a.
A.
b.
B.
c.
C.
d.
D.
e.
A and E.
c
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The moons of Mars, Phobos (Fear) and Deimos (Terror), are very close to the planet compared to Earth's Moon. Their orbital radii are 9,378 km and 23,459 km respectively. What is the ratio of the orbital speed of Phobos to that of Deimos?
A) 0.2528 B) 0.3998 C) 1.582 D) 2.858 E) 3.956
Air at a temperature of 32°F has a relative humidity of 60%. If the temperature of the same air increases, the relative humidity increases
Indicate whether the statement is true or false
Mercury completes one orbit around the Sun in 8 days
a. True b. False Indicate whether the statement is true or false
A pair of narrow slits, separated by 1.8 mm, is illuminated by a monochromatic light source. Light waves arrive at the two slits in phase, and a fringe pattern is observed on a screen 4.8 m from the slits
If there are 5.0 complete bright fringes per centimeter on the screen near the center of the pattern, what is the wavelength of the monochromatic light? A) 700 nm B) 650 nm C) 550 nm D) 600 nm E) 750 nm