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earnstyle [38]
2 years ago
13

Two students were pushing a heavy sofa. One student pushed with a force of 200.0 N to the right, while the other pushed with a f

orce of 150.0 N to the right. The floor exerted a frictional force of 100.0 N. If the sofa's mass is 91.0 kg, what is its acceleration? Round your answer to three significant figures.
Physics
1 answer:
makvit [3.9K]2 years ago
8 0

Answer:

Explanation:

F = ma

a = F/m

a = (200.0 + 150.0 - 100.0) / 91.0

a = 250.0/91.0

a = 2.7472527...

a = 2.75 m/s²

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myrzilka [38]

72 m/s

Explanation:

Given,

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Since Big Macs are (i) a luxury good, and (ii) have close substitutes (other burgers available at McDonalds and other fast food stores), we will say their elasticity is greater than 1.  

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As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over th
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