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3 years ago

If 143 joules of work are needed to move a box 9 meters, what force was used?

Physics

2 answers:

zhuklara [117]3 years ago

8 0

Answer: 16 N

Explanation: Work is expressed in this formula:

W=F x d

Derive for F:

F= W /d

= 143 J / 9 m

= 16 N

brilliants [131]3 years ago

7 0

Your gonna have to divide 143 into 9 and then that will be your answer

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Svetllana [295]

Answer:

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Explanation:

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$v = \sqrt{2\cdot g \cdot s \cdot (\sin \theta - \mu_{k}\cdot \cos \theta)}$

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3 0

3 years ago

A damped harmonic oscillator consists of a mass on a spring, with a small damping force that is proportional to the speed of the

exis [7]

Answer:

2.19 N/m

Explanation:

A damped harmonic oscillator is formed by a mass in the spring, and it does a harmonic simple movement. The period of it is the time that it does one cycle, and it can be calculated by:

T = 2π√(m/K)

Where T is the period, m is the mass (in kg), and K is the damping constant. So:

2.4 = 2π√(0.320/K)

√(0.320/K) = 2.4/2π

√(0.320/K) = 0.38197

(√(0.320/K))² = (0.38197)²

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2 years ago

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goldenfox [79]

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