What keeps Earth moving?

A) Actually, it isn't moving.
B) gravity
C) the energy of space
D) its inertia
E) solar energy


D

Physics & Space Science

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Most star names, such as Aldebaran and Betelgeuse, are___ in origin

a. Latin b. Greek c. Arabic d. English e. Italian

Physics & Space Science

The very first living organisms on the Earth were probably

A) chemoheterotrophs B) photoautotrophs C) photoheterotrophs D) chemoautotrophs

Physics & Space Science

The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively, and their separation is 6.0 cm when adjusted for minimum eyestrain for a person with a near point of 25.0 cm

If the microscope is focused on a small object, the magnitude of its final overall magnification is closest to A) 200. B) 150. C) 50. D) 100. E) 250.

Physics & Space Science

A changing magnetic field can produce an electric current

Indicate whether the statement is true or false

Physics & Space Science