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aivan3 [116]
3 years ago
13

The best place to look for crabs is between the high tide and low tide zones (the tidal flat). knowing this, would you expect to

find more crabs during a full moon/new moon or during a quarter moon stage? explain why.
Physics
1 answer:
disa [49]3 years ago
4 0
The best answer for this question is generally the best period to look for crabs is for the duration of the full moon, this is as a result of most invertebrates being nocturnal and being more effortlessly spotted and being fascinated to light sources.
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Find the area of the part of the plane 5x 3y z = 15 that lies in the first octant.
Lunna [17]

This part of the plane lies above a triangle with boundaries x=0 and y=0 along the coordinate axes, as well as the line

z=0 \implies 5x + 3y = 15 \implies y = \dfrac{15 - 5x}3

When y=0, we have 15-5x=0\implies x=3. So this triangle is the set

T = \left\{(x,y)\in\Bbb R^2 ~:~ 0\le x\le3 \text{ and } 0\le y\le\dfrac{15-5x}3\right\}

Also, when x=0, we have y=\frac{15}3=5. So the triangle has length 3 and width 5, hence area 1/2•3•5 = 15/2.

Let z=f(x,y) = 15 - 5x - 3y. Then the area of the plane over T is

\displaystyle \iint_T dA = \iint_T \sqrt{1 + \left(\frac{\partial f}{\partial x}\right)^2 + \left(\frac{\partial f}{\partial y}\right)^2} \, dx \, dy

We have

\dfrac{\partial f}{\partial x} = -5 \implies \left(\dfrac{\partial f}{\partial x}\right)^2 = 25

\dfrac{\partial f}{\partial y} = -3 \implies \left(\dfrac{\partial f}{\partial y}\right)^2 = 9

\implies\displaystyle \iint_T dA = \sqrt{35} \iint_T dx\,dy = \boxed{\frac{15\sqrt{35}}2}

since the integral

\displaystyle \iint_TdA

is exactly the area of T, 15/2.

8 0
2 years ago
Which list accurately identifies the hierarchy of space from largest to smallest? Solar system, galaxy, planet, universe Galaxy,
Oliga [24]
<h3><u>Answer;</u></h3>

Universe, galaxy, solar system, planet, moon

<h3><u>Explanation;</u></h3>
  • <u>A galaxy</u>, such as our Milky Way Galaxy, is a collection of solar systems orbiting around a central core.
  • <u>A solar system</u> consists of a star, normally the sun and all of its planets, asteroids, comets and other bodies.
  • <u>A planet</u> is a nearly spherical body which is in orbit around the Sun. Planets are larger than moons.
  • <u>Moons</u> are typically rocky bodies which are in orbit around planets.
8 0
3 years ago
Read 2 more answers
What is Aristotle famous for?
Mila [183]

Answer:

History

Explanation:

Im. Sorry. Im. Not. Much. Help

8 0
3 years ago
What is the frequency of radiation whose wavelength is 2.40 x 10-5 cm?
S_A_V [24]
<span>To begin, the formula for finding frequency when wavelength is known is "f = c / w" when c is the constant velocity (3 * 10^8 m/s). To convert the wavelength into a common form (m/s), it will have to be multiplied by 10^-2. This leaves the equation as "f = 3.0 * 10^8 / (2.4 * 10^-5 * 10^-2), or 2.4 * 10^-7. This gives 1.25 * 10^15 m/s as the frequency.</span>
7 0
3 years ago
Plz help!!!
shtirl [24]

Answer:

I think the answer to your question is true

3 0
3 years ago
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