The difference between speed and velocity is that
A) they are expressed in different units.
B) velocity also includes a direction.
C) velocity is the same as acceleration but speed is different.
D) velocity is calculated using a physics equation.
B
Physics & Space Science
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The process of logically inferring a result from data is called
What will be an ideal response?
Physics & Space Science
In the Milky Way galaxy, gas and dust are found:
A) in molecular clouds. B) everywhere. C) in neutral hydrogen clouds. D) in dark nebulae. E) in emission nebulae.
Physics & Space Science
The resistive force of friction occurs for
A) solids. B) liquids. C) gases. D) all of the above
Physics & Space Science
A gasoline engine absorbs 2500 J of heat and performs 1000 J of mechanical work in each cycle. The amount of heat expelled in each cycle is
a. 1000 J b. 1500 J c. 2000 J d. 500 J e. 3000 J
Physics & Space Science