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2 years ago

11

A person throws a ball with a force of 140 N that accelerates at 15 m/s? What is the mass of the

1 answer:

mr_godi [17]2 years ago

6 0

Newton's 2nd law

$\tt \sum F=m.a$

input the value:

$\tt m=\dfrac{\Sum F}{a}=\dfrac{140~N}{15~m/s^2}=9.3~kg$

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Answer:

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3 years ago

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A counterflow double-pipe heat exchanger is used to heat water from 20°C to 80°C at a rate of 1.2 kg/s. The heating is to be com

bixtya [17]

Answer:L=109.16 m

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