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4 years ago

Which describes the energy transformations for a radio?

Physics

2 answers:

11111nata11111 [884]4 years ago

5 0

A electrical to sound

zavuch27 [327]4 years ago

3 0

This is a good place to use your brain.
... If toxic substances do not leak out of a radio, you can cross out the one with 'chemical' in it. (B).
... If you can't use a radio as a heater, then you can cross out the ones with 'thermal' in them. (C and D).
... That only leaves one good choice.

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If you found a line of volcanic peaks a few hundred miles long in which the volcanoes were progressively older toward one end of

Basile [38]

The geological process that could be responsible for this phenomenon would be the plate tectonics. The plate tectonic theories are believed to be the cause of the landforms forming on the earth's surface. What is described in the questions would be an oceanic ridge which is formed from converging oceanic crusts.

5 0

3 years ago

What are the purposes of these items aboard the Voyager probes? • Low-energy particle detector: • Magnetometer boom: • High-gain

marta [7]

Explanation:

1. Low-energy particle detector: This particle detector measures the charged particles of the solar winds.

2. Magnetometer boom: This device measures magnetic fields produced by astronomical bodies.

3. High-gain antenna: A HGA has a narrow radio beam that is used to enhance the strength of signal. They simply amplify the weak signals.

4. Photopolarimeter: This is an instrument that is used to measure the strength and intensity and polarization of reflected light.

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3 years ago

When you approach a light source that in turn is moving towards you, your speed relative to the emitted light waves _____.?

Natalka [10]

This is a trick question:

The Doppler effect states that as you move closer to the source, the frequency of light(or sound/waves in general) increases, but technically the speed of light is always the same speed, even if you are moving at the speed of light.

Thus, the answer would be something along the lines of don't change.

7 0

3 years ago

Read 2 more answers

Classify Cd2+ Mn2+ Kr Zr as Paramagnetic or diamagnetic

jeka57 [31]

We classify the elements as follows:

Cd2+ = Diamagnetic
Mn2+ = Paramagnetic
Kr = Diamagnetic
Zr = Paramagnetic

Diamagnetic when all electrons are paired which means that in an orbital an electron spins clockwise and another spins anticlockwise while paramagnetic is the opposite.

5 0

3 years ago

A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If the sound intensity is origin

Temka [501]

Answer:

The new intensity = 3.38 × 10⁻⁵ W/m²

Explanation:

Intensity of sound wave:

The intensity of sound is the rate of flow of flow of energy, per unit area, perpendicular to the direction of the sound wave.

Intensity (I) ∝ A²

where I = intensity, A = Amplitude.

∴ I₁/I₂ = A₁²/A²₂............................... equation 1

From the question, the amplitude increase by 30% of the initial

∴ A₂ = A₁ + 0.3A₁ = 1.3A₁, I₁ = 2.00×10⁻⁵ W/m²

∴ (2.00×10⁻⁵)/I₂ = A₁²/(1.3A₁)²

(2.00×10⁻⁵)/I₂ = 1/1.3²

making I₂ the subject of the equation

I₂ = (2.00 × 10⁻⁵)×1.3² = 3.38 × 10⁻⁵ W/m₂

The new intensity = 3.38 × 10⁻⁵ W/m²

7 0

4 years ago