A baseball thrown from the outfield is released from shoulder height at an initial velocity of 39.2 m/s at an initial angle of 30.0° with respect to the horizontal. What is the maximum vertical displacement that the ball reaches during its trajectory?
a. 11.0 m
c. 22.1 m
b. 19.6 m
d. 44.1 m
B
Physics & Space Science
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The coefficient of linear expansion of aluminum is 24.0 × 10-6 K-1 and the density of aluminum at 0°C is 2.70 × 103 kg/m3. What is the density of aluminum at 300°C?
A) 3.93 × 103 kg/m3 B) 2.73 × 103 kg/m3 C) 2.70 × 103 kg/m3 D) 2.67 × 103 kg/m3 E) 2.64 × 103 kg/m3
Physics & Space Science
In the scientific method, it is not necessary to test your theory
Indicate whether the statement is true or false
Physics & Space Science
Processes can proceed from disorder to order
A) when input energy is supplied. B) on an everyday occurrence. C) never. D) none of the above
Physics & Space Science
If the south pole of one bar magnet is brought near the north pole of a second bar magnet, the two magnets will
A) attract. B) repel.
Physics & Space Science