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

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A spiral galaxy with an extremely luminous, active core is called a(n) _______________ galaxy

Fill in the blank(s) with correct word

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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 ?

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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