Physics, 27.08.2020 14:01 emmajobaby
Some runners have just started a race. They began at rest and are getting faster. What statement best describes the motion of the runners at the beginning of the race (right after they start running)?
A. Acceleration and speed both remain constant.
B. Velocity and speed both remain constant.
C. Acceleration is positive and speed is increasing.
D. Velocity remains the same and speed is positive
Answers: 2
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Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system
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Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c
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The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.
Answers: 3
Some runners have just started a race. They began at rest and are getting faster. What statement bes...
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