When an object falls through the air, as velocity increases the net force
A) increases.
B) decreases.
C) remains the same whether in air or in a vacuum.
Answer: B
Physics & Space Science
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Stars of the main sequence all fall in luminosity class ________
Fill in the blank(s) with correct word
Physics & Space Science
The temperature scale where the numerical value is proportional to the average kinetic energy of the atoms or molecules is
a. Fahrenheit. b. Celsius. c. Kelvin. d. none of the above.
Physics & Space Science
The index of refraction of a substance is
a)equal to the speed of light in vacuum divided by its speed in that substance. b)equal to the speed of light in that substance. c)the same as the angle of refraction. d)the same as the angle of incidence. ? ? ?
Physics & Space Science
Venus has a significant magnetic field
a. True b. False Indicate whether the statement is true or false
Physics & Space Science