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3 years ago

A man has a mass of 110 kg. What is his weight? A. 110N B. 1325 N C. 559 N D. 1078 N

Physics

1 answer:

Slav-nsk [51]3 years ago

7 0

Answer:

Option D

Explanation:

Given:

Mass = m = 110 kg

Acceleration due to gravity = g = 9.8 m/s

Required:

Weight = W = ?

Formula

W = mg

Solution:

W = (110)(9.8)

W = 1078 N

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b) See plot attached

c) 10.0 m

d) 0.500 cm

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$y(t)=A sin (\frac{2\pi}{T} t)$ (2)

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A is the amplitude of the wave

T is the period of the wave

t is the time

By comparing (1) and (2), we see that for the wave in this problem we have

$\frac{2\pi}{T}=2.00\cdot 10^4 s^{-1}$

Therefore, the period is

$T=\frac{2\pi}{2.00\cdot 10^4}=3.14 \cdot 10^{-4} s$

The sketch of the profile of the wave until t = 4T is shown in attachment.

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The wave than periodically repeats itself every period. In this sketch, we draw the wave over 4 periods, so until t = 4T.

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y = 0.500 cm

So, this is the maximum displacement represented in the sketch.

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$\lambda=2L$