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faltersainse [42]
3 years ago
11

Pls help answer 7 and 8

Physics
1 answer:
aleksandr82 [10.1K]3 years ago
6 0

Answer:

science is the knowledge gained through observations and experimentations

Characteristics

consistency

observability

predictability

testability

tentativeness

components of nature are soil,atmosphere and radiation

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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
Given the mass of the yo-yo is m and the length of the string (radius of the circle traced by the yo-yo) is L, you find the mome
Arlecino [84]
At condition 1:
I = mL^2
At condition 2:
I’ = m(2L)^2 = 4mL^2 = 4I
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A football player kicks the ball through the goal posts with their foot and their toes are left stinging
GenaCL600 [577]

Answer: The foot kicked the ball with alot of force the ball had force too so their toes are left stinging

Explanation:

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Convert 9.75 millimeters to centimeters.
Alex777 [14]
0.975 is correct, to get the answer you divide the length value by 10.
4 0
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Read 2 more answers
Which of the following best describes a mathematical wave
victus00 [196]

Answer: D:

A periodic disturbance of a medium

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A wave can be Mathematically defined by periodic disturbance of a medium. That is, oscillations of the waves about a fixed position or change in position from the resting equilibrium position. The wave oscillate from equilibrium position with amplitude periodically.

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