If you coil the wire around and around, it will make the magnetic force stronger, but it will still be pretty weak. ... The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
Explanation:
The energy emitted by long wavelength waves are smaller to those emitted by short wave lengths.
The energy of a wave is a function of its wavelength and frequency.
- The wavelength of a wave is the distance between its crest.
- Frequency is the amount of waves that passes through a point in a period of time.
- Energy of a wave is directly proportional to frequency and inversely proportional to wavelength.
- The higher the frequency of a wave, the more the energy.
- Waves with a high wavelength carries very little energy.
- Long wavelength radiations have a long wavelength as the name implies. They carry very little energy and have low frequency. Examples are infra-red.
- Short wavelength radiations have short wavelength. They carry very high amount of energy and have very high frequency. Examples are x-rays and gamma rays.
learn more:
Electromagnetic radiation brainly.com/question/6818046
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Answer:
we need to breath and plants helps
Explanation:
as insects became exposed to pyrethroids, toxicity of pyrethroids weakened over time. which means that Most insects had the allele for pyrethroid resistance, but it remained masked. The allele for said pyrethroid resistance, evidently increased throughout the population.
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