A rock found on Earth that crashed down from space is called

A) a meteor.
B) an asteroid.
C) a meteorite.
D) an impact.


C

Physics & Space Science

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An incredibly dense star so massive that light cannot escape from its surface is called a(n) ______________

Fill in the blank(s) with correct word

Physics & Space Science

Determine the magnitude and sense (direction) of the current in the 500-? resistor when I = 30 mA



a.
56 mA left to right

b.
56 mA right to left

c.
48 mA left to right

d.
48 mA right to left

e.
26 mA left to right

Physics & Space Science

A wrench is acting on a nut. The length of the wrench lies directly to the east of the nut. A force 150 N acts on the wrench at a position 15.0 cm from the center of the nut in a direction 30.0° north of east

What is the torque about the center of the nut? A) 22.5 N?m B) 11.3 N?m C) 19.5 N?m D) 2250 N?m E) 1949 N?m

Physics & Space Science

Suppose I throw a ball toward the floor. It hits the floor and rebounds upward. What type of interaction causes the ball to rebound?

A. Gravitational B. Electrostatic C. Magnetic D. Compression E. Friction F. Tension T. Something else (explain)

Physics & Space Science