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Luden [163]
4 years ago
6

5. For what purpose do bats use ultrasonic waves?

Physics
1 answer:
Hunter-Best [27]4 years ago
4 0

Answer:

Doppler effect

Explanation:

because it uses that to catch it's prey

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Which part of the electromagnetic spectrum has a lower frequency than visible light?
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Find the speed (in m/s) needed to escape from the solar system starting from the surface of Neptune. Assume there are no other b
alex41 [277]

Answer:

The speed needed to escape from the solar system starting from the surface of Neptune is approximately 23557.615 meters per second.

Explanation:

The escape speed needed to escape from the gravitational influence of a planet (v_{e}), measured in meters per second, is derived from Newton's Law of Gravitation and Principle of Energy Conservation and defined by the following formula:

v_{e} = \sqrt{\frac{2\cdot G\cdot M}{R} } (1)

Where:

G - Gravitational constant, measured in cubic meters per kilogram-square second.

M - Mass of Neptune, measured in kilograms.

R - Radius from the center to surface, measured in kilograms.

If we know that G = 6.672\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}}, M = 1.024\times 10^{26}\,kg and R = 24.622\times 10^{6}\,m, then the escape speed needed is:

v_{e} =\sqrt{\frac{2\cdot \left(6.672\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}} \right)\cdot (1.024\times 10^{26}\,kg)}{24.622\times 10^{6}\,m} }

v_{e} \approx 23557.615\,\frac{m}{s}

The speed needed to escape from the solar system starting from the surface of Neptune is approximately 23557.615 meters per second.

5 0
3 years ago
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