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Sedaia [141]
3 years ago
8

Describe three events that you cannot explain. About energy and matter

Physics
1 answer:
ZanzabumX [31]3 years ago
5 0

Answer:

A teacher giving homework on fridays

A teacher giving tests on fridays

A teacher holding you back after class on fridays

Explanation:

because i luv friday

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HEEEEELP!!!!!! :((( help me with this exercise.
kirill [66]

Answer:

  • See the graph attached with the vectors.

Explanation:

The exercise is to draw the corresponding vectors:

     2\vec a\\\\3\vec c\\\\3\vec d\\\\3\vec f\\\\2\vec b

Every one is the multiplication of a scalar by a vector.

The result of multiplying a scalar by a vector is a vector with the same direction of the original vector enlarged in a factor equal to the scalar magntitude.

Thus, in a graph the resulting vector is represented with a parallel arrow and pointing in the same direction as the original vector but with a length equal to the original length multiplied by the magnitude of the scalar.

For instance, the vector 2\vec a is represented with an arrow in the same direction of \vec a and with twice its length.

The figure attached contains the five requested vectors using the procedure explained above.

7 0
3 years ago
Can some one do for me a power point
mash [69]

Answer:

so basicly i cant do it for u because my computer is not leting me but you just got to search up answer or ask your teacher for help or like i do i say that i ternd it in and the teacher will say no you didint say that u did and she will say can u send it to me say no bc i deleted

Explanation:

hope this helps❤️

4 0
3 years ago
Read 2 more answers
A circular loop of wire with 15 turns, radius 0.129 m and resistance 0.251 Ohms is connected to a 16.7 V power supply. The magne
Licemer1 [7]

The magnetic field at the center of the circular loop is 3.24 x 10⁻⁴ T.

<h3>Current in the wire</h3>

The current in the wire is calculated as follows;

V = IR

I = V/R

I = 16.7/0.251

I = 66.53 A

<h3>Magnetic field at the center of the loop</h3>

The magnetic field at the center of the circular loop is calculated as follows;

B = \frac{\mu_0 I}{2R} \\\\B = \frac{4\pi \times 10^{-7} \times66.53 }{2\times 0.129} \\\\B = 3.24 \times 10^{-4} \ T

Learn more about magnetic field here: brainly.com/question/7802337

3 0
3 years ago
What is the resultant displacement of the two vectors below
NeX [460]

Answer:

The resultant displacement is 5.8 cm, 31° South of the West axis ⇒ 4th

answer

Explanation:

<u><em>A resultant vector</em></u> is the combination of two or more single vectors

If the two vectors are perpendicular, then

<em><u>The magnitude</u></em> of the resultant vector = \sqrt{x^{2}+y^{2}},where

x represents the horizontal vector and y represents the vertical vector

<em><u>The direction</u></em> of the resultant vector is tan^{-1}\alpha, where α

is the angle between the horizontal vector and the resultant vector

Vector 1 is 5 cm due to West-axis

Vector 2 is 3 cm due to South-axis

We need to find the resultant displacement of them

The West and South are perpendicular

The West is the horizontal vector and South is the vertical vector

The magnitude of the resultant displacement s is:

s=\sqrt{(5)^{2}+(3)^{2}}

s=\sqrt{25+9}

s=\sqrt{34}=5.8

The direction of the resultant displacement s is:

tan^{-1}\frac{3}{5}=31° south of the west (between the west and

the resultant displacement)

<em>The resultant displacement is 5.8 cm, 31° South of the West axis</em>

6 0
3 years ago
Some people think that coloured filters add colour to white light. Why is this not correct ​
Elis [28]

Answer:

White is every colour.

Explanation:

The filters make whatever they are colour stronger.

4 0
3 years ago
Read 2 more answers
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