1) a 30-kg object is accelerated at a rate of 3 m/s². how much force does the object have? 2) joey pushes on a door that is stuck with 400n of force, but is unable to move it. how much work has he done? 3) a 60w light bulb burns for 2 minutes. how much work was done? 4) how much power is used if it takes jamel (a 450n boy) 3 seconds to run 2 meters? 5) how much work is required to pull a sled if you use 60w of power 5 seconds. note: important formulasf=m×a. w=f×dp=w/t
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Physics, 21.06.2019 21:50
What is the length x of the side of the triangle below? (hint: use the cosine function)
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Physics, 22.06.2019 07:40
How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.
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Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
1) a 30-kg object is accelerated at a rate of 3 m/s². how much force does the object have? 2) joey...
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