A ball rolls over the edge of a platform with a horizontal velocity of magnitude v. The height of the platform is 1.6 m and the horizontal range of the ball from the base of the platform is 20 m
What is the magnitude of v if air resistance is negligibly small?
35 m/s
Physics & Space Science
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2.00 moles of an ideal gas freely expands from 1.50 liters to 4.00 liters. The change in entropy in the expansion
A. 5.80 J/K B. 8.50 J/K C. 16.3 J/K D. 18.7 J/K
Physics & Space Science
A spiral galaxy with an extremely luminous, active core is called a(n) _______________ galaxy
Fill in the blank(s) with correct word
Physics & Space Science
Consider the displacement vectors shown below.
a) Which vector (if any) is equal to 
?
(b) Which is not equal to but has the same magnitude?
(c) Which is equal to 
?
(d) Which is equal to 
?
Physics & Space Science
The prolonged period of few sunspots between 1645 and 1715 is known at the Maunder Minimum
Indicate whether the statement is true or false
Physics & Space Science