A liquid to gas phase change is the result of particles moving more quickly.
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Answer: Gravity
Explanation:A projectile is an object upon which the only force is gravity. Gravity acts to influence the vertical motion of the projectile, thus causing a vertical acceleration. The horizontal motion of the projectile is the result of the tendency of any object in motion to remain in motion at constant velocity.
Answer:
1.2 mi/hr/sec
Explanation:
<em>a = Vf - Vi / t (formula)</em>
-----------------------------------
6mi/hr - 0 mi/hr 6 mi/hr
a = ____________ = _______ = 1.2 mi/hr/sec
5 sec 5 sec
PE = mass * gravity * height
PE = 15 * 9.81 * 1.2
PE = 176.58 J
