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Ugo [173]
3 years ago
7

Name one type of technology that utilizes magnetism to function.

Physics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0

Magnetic Resonance Imaging (MRI) is one type of technology that utilizes magnetism to function. Most might know it better as an MRI scan.

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Light that has a wavelength of 600 nm strikes a metal surface, and a stream of electrons is ejected from the surface. If light o
Anni [7]

Answer:

The maximum kinetic energy of the electrons emitted from the surface will be greater.

Option 3 is correct.

Explanation:

Given that,

Wavelength \lambda_{1}=600\ nm

Wavelength \lambda_{2}=500\ nm

We need to calculate the energy for first wavelength

Using formula of energy

E=hf

E=h\dfrac{c}{\lambda}

Put the value into the formula

E_{1}=6.67\times10^{-34}\times\dfrac{3\times10^{8}}{600\times10^{-9}}

E_{1}=3.33\times10^{-19}\ J

We need to calculate the energy for second wavelength

Put the value into the formula

E_{2}=6.67\times10^{-34}\times\dfrac{3\times10^{8}}{500\times10^{-9}}

E_{2}=4.002\times10^{-19}\ J

So, E₂>E₁

Hence, The maximum kinetic energy of the electrons emitted from the surface will be greater.

8 0
3 years ago
What scientists do that is the basis of their investigations
matrenka [14]
<span>The "scientific method" consists of forming a hypothesis (a statement about what the researchers think is true), collecting data that might confirm or refute the hypothesis, and then examining the data to see how well or poorly they support the original hypothesis.</span>
3 0
4 years ago
If a grocery cart with a mass of 16.5 kg accelerates at +2.31 m/s2 against a frictional force of -15.0 N, what is the applied fo
ziro4ka [17]
Call the applied force 'A'. (Clever ?)

The forces on the cart are  'A' forward and 15 N backward.

The net force on the art is (A-15) forward.

F = m a

Net forward force = (mass of the cart) x (its forward acceleration)

(A - 15) = (16.5) x (2.31)

A - 15 = 38.115

Add 15 to each side:

<u>A = 53.115 newtons</u>

5 0
3 years ago
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Answer:

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3 years ago
Can you put this image back together? Type the correct order of letters below.
Art [367]

Answer:

CABD

.....................

6 0
2 years ago
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