Addition by 1. Components: Vector  has a magnitude of 8.0 m and points east, vector  has a magnitude of 6.0 m and points north, and vector  has a magnitude of 5.0 m and points west. The resultant vector  +  + 

src="https://sciemce.com/media/4/ppg__cp1pbb0313192044__f15g1q20g6.jpg" style="vertical-align: -5.0px;" /> is given by

A. 2.0 m at an angle 63° north of east.
B. 2.0 m at an angle 63° east of north.
C. 6.7 m at an angle 63° east of north.
D. 6.7 m at an angle 63° north of east.
E. 3.8 m at an angle 67° north of east

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Answer: D

Physics & Space Science

Star A and star B both have an apparent magnitude of 4.0, but star A has an absolute magnitude of 1.0 and star B has an absolute magnitude of 7.0. Which statement below is correct?

A) Star A appears brighter than star B, but actually star B and star A are the same brightness. B) Star B appears brighter than star A, but actually star B and star A are the same brightness. C) Star A and star B appear to have the same brightness, but actually star B is brighter than star A. D) Star A and star B appear to have the same brightness, but actually star A is brighter than star B. E) It is impossible to determine how bright these stars are or appear to be relative to one another, given the information above.

A child runs and jumps tangentially onto an initially stationary playground merry-go-round. As a result, the merry-go-round begins to turn. Explain in terms of the child-merry-go-round system

What will be an ideal response?

The celestial object _______________ is just one of many small objects that orbit the Sun beyond Neptune

Fill in the blank(s) with correct word

Process of Science: Observations of asteroids, comets, and meteorites help refine the theory of the formation of the solar system

Indicate whether the statement is true or false