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NNADVOKAT [17]
3 years ago
8

What type of energy does a rock resting on top of a hill have?

Chemistry
2 answers:
Oduvanchick [21]3 years ago
5 0

Answer: potential energy

Explanation: kinetic energy is when an object moves while potential spurs from “potential: what could happen” as in it hasn’t moved yet

Viefleur [7K]3 years ago
3 0
Potential energy

This is because when you saw potential energy it means nothing has happened to it.
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A ribosome
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The first part of an organism's 2 part scientific name. It is always
Harrizon [31]

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Its B: Genus.

Explanation:

It has a scientific name so that's why its Genus.

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3 years ago
The picture shows a scientist operating an instrument that measures earthquakes. Identify the TWO terms from the list below that
Liula [17]

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Good Luck!

5 0
3 years ago
An inverted pyramid is being filled with water at a constant rate of 45 cubic centimeters per second. The pyramid, at the top, h
vaieri [72.5K]

Answer:

13.20 cm/s is the rate at which the water level is rising when the water level is 4 cm.

Explanation:

Length of the base = l

Width of the base  =  w

Height of the pyramid = h

Volume of the pyramid = V=\frac{1}{3}lwh

We have:

Rate at which water is filled in cube = \frac{dV}{dt}= 45 cm^3/s

Square based pyramid:

l = 6 cm, w = 6 cm, h = 13 cm

Volume of the square based pyramid = V

V=\frac{1}{3}\times l^2\times h

\frac{l}{h}=\frac{6}{13}

l=\frac{6h}{13}

V=\frac{1}{3}\times (\frac{6h}{13})^2\times h

V=\frac{12}{169}h^3

Differentiating V with respect to dt:

\frac{dV}{dt}=\frac{d(\frac{12}{169}h^3)}{dt}

\frac{dV}{dt}=3\times \frac{12}{169}h^2\times \frac{dh}{dt}

45 cm^3/s=3\times \frac{12}{169}h^2\times \frac{dh}{dt}

\frac{dh}{dt}=\frac{45 cm^3/s\times 169}{3\times 12\times h^2}

Putting, h = 4 cm

\frac{dh}{dt}=\frac{45 cm^3/s\times 169}{3\times 12\times (4 cm)^2}

=13.20 cm/s

13.20 cm/s is the rate at which the water level is rising when the water level is 4 cm.

3 0
3 years ago
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