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Mazyrski [523]
3 years ago
13

There are slightly more than one hundred elements known to exist. The smallest complete unit of an element that serves as the ba

sic building block of matter is the:
A) atom
B) Proton
C) neutron
D) nucleus
Physics
1 answer:
Nostrana [21]3 years ago
7 0
A) it is atom for e2020
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What work is done by the electric force when the charge moves a distance of 2.70 m at an angle of 45.0∘ downward from the horizo
Andreyy89

Incomplete question as many data is missing.I have assumed value of charge and electric field.The complete question is here

A charge of 28 nC is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 5.00×10⁴ V/m.

What work is done by the electric force when the charge moves a distance of 2.70 m at an angle of 45.0 degrees  downward from the horizontal?

Answer:

W_{work}=2.67*10^{-3}J

Explanation:

Given data

Charge q=28 nC

Electric field E=5.00×10⁴ V/m.

Distance d=2.70 m

Angle α=45°

To find

Work done by electric force

Solution

W_{work}=F_{force}*D_{distance}Cos\alpha  \\where\\F_{force}=q_{charge}*E_{Electric-Field}\\So\\W_{work}=qE*D*Cos\alpha \\W_{work}=(28*10^{-9}C )(5.00*10^{4}V/m )(2.70m)Cos(45)\\W_{work}=2.67*10^{-3}J

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3 years ago
The brief wave of positive electrical charge that sweeps down the axon is _____.
kobusy [5.1K]
I believe Action potential is the brief wave of positive charge that sweeps down the axon. Axon is part of the neuron that conducts impulses from the dendrites towards the cell body along the neuron. The action potential is brief since the sodium channels can only stay open for a very brief amount of time. As it travels along the neuron there is a change in polarity across the membrane of the axon .
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In a classroom demonstration, students are using a Slinky to observe and learn about wave properties. If the Slinky has a period
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Answer:

Frequency = 3.0 Hertz

Explanation:

Given the following data;

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To find the frequency;

Mathematically, frequency of a wave is given by the formula;

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Substituting into the formula, we have;

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Frequency = 3.0 Hertz

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In the context of depth perception, which of the following is a monocular cue?
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Hello there.

<span>In the context of depth perception, which of the following is a monocular cue?

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You are taking the elevator to 10th floor. Are you in motion.
Nimfa-mama [501]
Technically yes you are i think
4 0
3 years ago
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