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3 years ago

Explain why a greater frequency indicates greater energy in a wave.

2 answers:

7 0

The greater the energy, the larger the frequency and the shorter (smaller) the wavelength. Given the relationship between wavelength and frequency — the higher the frequency, the shorter the wavelength — it follows that short wavelengths are more energetic than long wavelengths.

kompoz [17]3 years ago

4 0

Given the relationship between wavelength and frequency — the higherthe frequency, the shorter the wavelength — it follows that short wavelengths aremore energetic than long wavelengths.

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A satellite of mass M = 270kg is in circular orbit around the Earth at an altitude equal to the earth's mean radius (6370 km). A

zubka84 [21]

To solve this problem we will apply the concepts related to Orbital Speed as a function of the universal gravitational constant, the mass of the planet and the orbital distance of the satellite. From finding the velocity it will be possible to calculate the period of the body and finally the gravitational force acting on the satellite.

PART A)

$V_{orbital} = \sqrt{\frac{GM_E}{R}}$

Here,

M = Mass of Earth

R = Distance from center to the satellite

Replacing with our values we have,

$V_{orbital} = \sqrt{\frac{(6.67*10^{-11})(5.972*10^{24})}{(6370*10^3)+(6370*10^3)}}$

$V_{orbital} = 5591.62m/s$

$V_{orbital} = 5.591*10^3m/s$

PART B) The period of satellite is given as,

$T = 2\pi \sqrt{\frac{r^3}{Gm_E}}$

$T = \frac{2\pi r}{V_{orbital}}$

$T = \frac{2\pi (2*6370*10^3)}{5.591*10^3}$

$T = 238.61min$

PART C) The gravitational force on the satellite is given by,

$F = ma$

$F = \frac{1}{4} mg$

$F = \frac{270*9.8}{4}$

$F = 661.5N$

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3 years ago

1:A pattern or grouping of stars that people imagine representing a figure, an animal or an object.

Nesterboy [21]

Answer:

1.constellation
2.Probably a dwarf planet

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3 years ago

Explain how a generator creates electricity.

vlada-n [284]

Generators don't actually create electricity. Instead, they convert mechanical or chemical energy into electrical energy. They do this by capturing the power of motion and turning it into electrical energy by forcing electrons from the external source through an electrical circuit. hope it helps man

5 0

3 years ago

Read 2 more answers

Which statement is true of a mechanical wave?

svet-max [94.6K]

It must have a medium. It must travel in empty space. Mechanical waves are waves which needs medium of propogation.

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2 years ago

using mass and distance, identify and compare the sun's and moon's contribution to the formation of tides on earth

vekshin1

Answer:

Based on its mass, the sun's gravitational attraction to the Earth is more than 177 times greater than that of the moon to the Earth.

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3 years ago