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Flura [38]
3 years ago
10

Help pls pls i give reward

Physics
2 answers:
ohaa [14]3 years ago
3 0

Answer:

B

Explanation:

There is no new substances formed in choice B

xz_007 [3.2K]3 years ago
3 0

Answer:

the answer is B. boiling of water, bursting of a balloon, crumpling a piece of paper.

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Identify characteristics of energy from the Sun. Check all that apply.
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First one, third one, and fourth one

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Name three characteristics of scientists that are important to their work but are also found in nonscientists.
Alina [70]

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The three characteristics of a good scientist are his curiosity, creativity and problem-solving skills.

Explanation:

3 0
3 years ago
A vertical cylindrical tank 10 ft in diameter, has an inflow line of 0.3 ft inside diameter and an outflow line of 0.4 ft inside
neonofarm [45]

Answer:

\frac{dh}{dt} = 1.3 \times 10^{-3} \frac{ft}{s}, level is rising.

Explanation:

Since liquid water is a incompresible fluid, density can be eliminated of the equation of Mass Conservation, which is simplified as follows:

\dot V_{in} - \dot V_{out} = \frac{dV_{tank}}{dt}

\frac{\pi}{4}\cdot D_{in}^2 \cdot v_{in}-\frac{\pi}{4}\cdot D_{out}^2 \cdot v_{out}= \frac{\pi}{4}\cdot D_{tank}^{2} \cdot \frac{dh}{dt} \\D_{in}^2 \cdot v_{in} - D_{out}^2 \cdot v_{out} = D_{tank}^{2} \cdot \frac{dh}{dt} \\\frac{dh}{dt}  = \frac{D_{in}^2 \cdot v_{in} - D_{out}^2 \cdot v_{out}}{D_{tank}^{2}}

By replacing all known variables:

\frac{dh}{dt} = \frac{(0.3 ft)^{2}\cdot (5 \frac{ft}{s} ) - (0.4 ft)^{2} \cdot (2 \frac{ft}{s} )}{(10 ft)^{2}}\\\frac{dh}{dt} = 1.3 \times 10^{-3} \frac{ft}{s}

The positive sign of the rate of change of the tank level indicates a rising behaviour.

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3 years ago
Which planet has a tilted axis of rotation similar to that of earth, which means it has seasons?.
MrRa [10]

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Uranus

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it's uranus....

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2 years ago
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