Physics, 02.10.2021 01:00 jacquelinegonz
Use the table to answer the question
A skateboarder flies horizontally off a cement planter. After 3 seconds the skateboarder
lands on the ground with a final velocity of -4.5 m/s. Which kinematic equation would be
most useful for finding the skateboarder's initial velocity? (Assume a = -9.8)
B
C or E
D
A
Answers: 3
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Atoms seldom exist as independent particles in nature a) as single particles, most atoms have low potential energy b) their electronegativity is much lower when they combine with other atoms c) atoms are more stable when they combine with other atoms d) neutral particles are rare
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Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.
Answers: 1
Use the table to answer the question
A skateboarder flies horizontally off a cement planter. After...
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