Mathematics, 03.05.2021 20:20 amay1977
A 2.0 N weight trolley moves in the horizontal part of a chute without friction at a speed of 3.0 m / s. Classify the following statements as vendors or false, correcting these:
a) The cart reaches a height h = 45 cm on the way up.
b) The kinetic energy variation of the cart, until it stops, is 0.90J.
c) The variation in the gravitational potential energy of the Cart + Earth system, until the cart stops, is 0.90 J.
d) The weight of the cart performs a work of 0.90 J from A to C.
Answers: 3
Mathematics, 21.06.2019 16:30
Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9
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Mathematics, 21.06.2019 19:40
The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол
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Mathematics, 21.06.2019 20:00
Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39
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A 2.0 N weight trolley moves in the horizontal part of a chute without friction at a speed of 3.0 m...
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