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-Dominant- [34]
3 years ago
7

Please select the word from the list that best fits the definition

Physics
1 answer:
insens350 [35]3 years ago
3 0

Answer:

Neutrons

Explanation:

<em>Protons</em> and <em>neutrons</em> make up the nucleus of the atom

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Which applications, either for diagnostic purposes or for therapeutic purposes, do not involve ionizing radiation? Check all tha
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These applications DO NOT INVOLVE harmful ionizing energy:

- MRI

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What is the direction of the field halfway between two horizontal parallel wires if the top wire has a current of 4 A to the lef
Alex777 [14]

Answer:

A) Out of the page.

Explanation:

Right-hand rule points the direction of the magnetic field at any point.

<u>Top wire</u>: Current is to the left. Point your thumb to the left and curl your other fingers around the wire. The tips of the four fingers points the direction of the field at that point. In this case, out of the page.

<u>Bottom wire</u>: Current is to the right. Point your thumb to the right and curl your other fingers around the wire. The tips of the four finger points out of the page again.

So, the total field produced by both wires is directed out of the page.

Another method to figure out the direction is the mathematical method.

Use the B-field formula:

d\vec{B} = \frac{\mu_0}{4\pi}\frac{Id\vec{l}\times \^r}{r^2}

The cross product between the direction of the current and the target position gives the direction of the B-field. If the left is -x direction and downwards is the -y direction, then

(-\^x) \times (-\^y) = +\^z for the top wire.

(+\^x) \times (+\^y) = +\^z for the bottom wire.

4 0
3 years ago
When did dalton form his atomic theory?
elena55 [62]
Sometime in the 1800s
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Name the plate boundary responsible for this.<br><br> Please help!!
Korolek [52]
Continental crust plate name
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3 years ago
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The current through a certain heater wire is found to be fairly independent of its temperature. If the current through the heate
irina [24]

Answer:

(c) increase by a factor of four

Explanation:

energy = power x time, and power = resistance x current ^2. 2^2 = 4.

5 0
3 years ago
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