For an observer at the equator, what will be the time the full moon rises on February 1?
The full moon rises about 6 P.M. local solar time.
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In the late 1990's, it was discovered from distances of ___________ in distant galaxies that the expansion of the Universe is ___________
a. Cepheid variables; accelerating b. Cepheid variables; decelerating c. supernovae; accelerating d. supernovae; decelerating
What do we mean when we say that a particle is weakly interacting?
A) It interacts with other particles only through the weakest force, gravity. B) It interacts only with other weak particles, such as neutrinos. C) It doesn't interact with any type of baryonic matter. D) It interacts with other particles only through the weak force. E) It interacts with other particles only through the weak force and the force of gravity.
Coil 1, connected to a 100-? resistor, sits inside coil 2 . Coil 1 is connected to a source of 60 cycle per second AC current. Which statement about coil 2 is correct?
a. No current will be induced in coil 2. b. DC current (current flow in only one direction) will be induced in coil 2. c. AC current (current flow in alternating directions) will be induced in coil 2. d. DC current will be induced in coil 2, but its direction will depend on the initial direction of flow of current in coil 1. e. Both AC and DC current will be induced in coil 2.
Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up. Angular momentum
a. is definitely conserved b. is definitely not conserved c. may or may not be conserved d. none of the above