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3 years ago

9

Which scale would most likely be used to tell how much earthquake damage was done to homes and other buildings? a. the Richter s

cale b. the Mercalli scale c. the moment magnitude scale d. the seismic scale Please select the best answer from the choices provided

2 answers:

larisa86 [58]3 years ago

8 0

Mercalli scale, Richter scale, and moment magnitude scale are all scales that are used for measuring earthquakes. However each of them measures different parameter. The Mercalli scale would most likely be used to tell how much earthquake damage was done to homes and other buildings. This scale measures by observation along the faults and g ives the rating of the earthquake depending on the damage done in the area.

Colt1911 [192]3 years ago

5 0

B. The Mercalli scale

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Which of the following determines and objects ability to float in water

AleksandrR [38]

I think its
Mass and volume

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3 years ago

Using the midpoint and the distance formulas, calculate he coordinate of the midpoint and the length of the segment.

arsen [322]

Answer:

Explanation:

Formula to calculate the distance between two points $(x_1,y_1)$ and $(x_2,y_2)$ is,

d = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Therefore, length of CD having coordinates C(3,1) and D(3, 3),

CD = $\sqrt{(3-3)^2+(1-3)^2}$

= 2 units

Formula to find the midpoint of CD is,

M = $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

= $(\frac{3+3}{2},\frac{1+3}{2})$

= (3, 2)

Therefore, length of CD = 2 units and (3, 2) are the coordinates of the midpoint of CD.

7 0

4 years ago

The moon's illumination changes in a periodic way that can be modeled by a trigonometric function. On the night of a full moon,

kupik [55]

Answer:

$L(t) = 0.125 (cos (\frac{\pi}{14.765}(t+7)) + 0.125$

Explanation:

The expression for the trigonometric function is :

L(t) = A (cos (B(t - C)))+ D ----- equation (1)

where ;

$A = \frac{max-min}{2}$

$A = \frac{0.25-0}{2}$

A = 0.125

D = $\frac{0+.025}{2}$

D = 0.125

Period of the lunar cycle = 29.53

Then;

$\frac{2 \pi}{B} = 29.53$

$29.53 \ \ B = 2 \pi$

$B = \frac{2 \pi}{29.53}$

$B = \frac{\pi}{29.53}$

Also; we known that December 25 is 7 days before January 1.

Then L(-7) = 0.025

Plugging all the values into trigonometric function ; we have:

$0.125 ( cos ( \frac{\pi}{14.765}((-7)-C)))+0.125 = 0.25 \\ \\ \\ ( cos ( \frac{\pi}{14.765}((-7)-C))) = \frac{0.25-0.125}{0.125}$

$( cos ( \frac{\pi}{14.765}((-7)-C))) = 1$

$( \frac{\pi}{14.765}((-7)-C))= cos^{-1} (1)$

$}((-7)-C))=0$

$C= -7$

$L(t) = 0.125 (cos (\frac{\pi}{14.765}(t-(-7))) + 0.125$

$L(t) = 0.125 (cos (\frac{\pi}{14.765}(t+7)) + 0.125$

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3 years ago

a light wave is traveling straight up out of the ocean then moves out into the air how do you expect the movement of the light w

Mariulka [41]

If the light is traveling straight up, then it hits the interface (surface
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This direction is the direction of the 'normal' to the surface. So the
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emerges into the air, and is not bent.

However, its speed increases in air, and that means its wavelength
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4 years ago

Which one of the following letters is used as an abbreviation when representing a unit of electric

erastovalidia [21]

You have several electrical units listed there:

a). C often used to represent a Capacitance.

b). 'A' often represents 'Ampere', the unit of Current.

c). 'R' often used to represent a Resistance.

d). 'E' often used to represent a Voltage (Electromotive Force).

Not to mention ' A. C ', a whimsical offering,
reminiscent of 'Alternating Current'.

7 0

3 years ago

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