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pshichka [43]
2 years ago
10

An average human has a heart rate of 70 beats per minute. If someone's heart

Physics
2 answers:
Sever21 [200]2 years ago
6 0

Answer:

I believe it would be D).3 x 10 to the 9th power

Explanation:

MariettaO [177]2 years ago
3 0
3x10 to the 9th power, the answer is D
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A trunk is dragged 3.0 meters across an attic floor by a force of 2.0N how much positive work is done on the trunk
Novay_Z [31]

The formula for work is

F*d

Therefore work=2.0N*3.0=6N*m

8 0
3 years ago
Longer wavelengths of light, such as _______, have ________ energy than shorter wavelengths, such as _________
Ilya [14]

Answer:

Micro and radio waves.

Lower energy.

Gamma rays.

Explanation:

The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths.

Ionising radiation os defined as the energy required of photons of a wave to ionize atoms, causing chemical reactions.

The energy of the wave depends on both the amplitude and the frequency. If the energy of each wavelength is a discrete packet of energy, a high-frequency wave will deliver more of these packets per unit time than a low-frequency wave. In summary, the longer the wavelength, the lower the energy to ionise.

The velocity of a wave is directly proportional to the frequency of that wave.

c = f * lambda

Where,

c = velocity of the wave

f = frequency of the wave = 1/time

Lambda = wavelength.

From the above expression, the longer the wavelength, lambda the shorter the frequency.

Examples of waves with longer wavelengths are, micro and radio waves, while radiations with shorter wavelengths like gamma rays.

8 0
2 years ago
state the type of force which provide the needed centripetal force in the following instance :an electron orbiting the nucleus
Vladimir [108]

i think the answer is electrostatic force hope this helps u stay safe

6 0
3 years ago
What happens when light enters water?
Svet_ta [14]
The answer should be A
8 0
3 years ago
Sally is trying to lift a heavy box, but is not strong enough to lift it.  Would the force that she is applying to the box be an
mestny [16]
If you give it unbalanced force it would go up and if you can't give it enough it will stay a balanced force
 
3 0
2 years ago
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