Reflection nebulae usually appear red
Indicate whether the statement is true or false
FALSE
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The force of kinetic friction between two surfaces is dependent on the relative speed of the two surfaces
Indicate whether the statement is true or false
Common erosional shoreline features include sea stacks,
A) beaches, and barrier islands. B) wave-cut platforms, sea caves, and sea arches. C) sea caves, sea arches, and atolls. D) wave-cut platforms, sea caves, and sea spits.
Mort stands on Earth. Velma moves away from him in a rocket at 299,000 km/s (1000 km/s slower than lightspeed). Mort sends a laser beam toward Velma
As the tip of the beam passes her rocket, Mort observes the beam to move just 1000 km/s faster than Velma, while Velma observes the beam to move at 300,000 km/s. Whose observation is correct? A) Mort's B) Velma's C) both D) neither
Proxima Centauri, the nearest star to the Sun, exhibits an annual parallax of 0.76 arcsec. Determine the distance to Proxima Centauri in parsecs