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e-lub [12.9K]
3 years ago
7

____ waves are often used in heat lamps fill in the blank

Physics
2 answers:
Ludmilka [50]3 years ago
8 0
Heat your answer is Heat.

Hoped I helped.
vredina [299]3 years ago
8 0
The answer to this question is <u>Infrared waves are often used in heat lamps.</u>
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Which colors of light represents the lowest visible frequency?
kodGreya [7K]

Answer:

Red

Explanation:

Red is a colour which has the lowest frequency. Violet has the highest frequency. Frequency has a direct relationship with energy. This means the higher the frequency, the higher the energy. Red has the lowest energy of all the colors too.

The frequency and Energy has an inverse relationship with the wavelength.

However Red has the longest wavelength of about 620 - 780 nanometer.

3 0
3 years ago
4. What is the acceleration of a plane that changes velocity from 75 m/s to
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Answer:

a =  \frac{v - u}{t}  \\ s =  \frac{ {v}^{2} -  {u}^{2}  }{2a}

Explanation:

Apply SUVAT

4 0
3 years ago
How many atoms are in a sample of 2.39 moles of neon (Ne) atoms?
Reil [10]
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 </span>2.39 moles Ne ( 6.022 x 10^23 atoms / mole ) = 1.44 × 10^24 atoms Ne
4 0
3 years ago
In which situation will the lowest resistance occur?
MrMuchimi

C. Thick wire and cold temperature.

Explanation:

The resistance of a wire is given by:  R = (ρL)/A

where ρ is the resistivity of the material, L is the length of the wire, A is the cross-sectional area of the wire.

From the formula, we see that the thicker the wire, the larger A, therefore the smaller the resistivity. so, a thick wire will have lower resistivity.

Moreover, the resistance of a wire increases with the temperature. In fact, high temperatures mean more motion of the atoms/electrons inside the wire, so more resistance to the flow of current through it. Therefore, colder temperature means lower resistance.

So, the correct option is thick wire and cold temperature.

7 0
3 years ago
Find out the kinetic energy of a body of mass 2kg moving with the speed of 3m/s
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= 1/2 x 2 x 3^2
= 9J
7 0
3 years ago
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