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3 years ago

How would you select a sicience fair project

2 answers:

6 0

Answer: i would chose a experiment that i have well researched and know how to do but nothing to common either such as the baking soda and vinegar experiment. A good one is Gummy Bear Osmosis, when i did that one came in first place. But there are several others as well.

Bogdan [553]3 years ago

5 0

Answer:

I would choose something that purely interest you

Explanation:

For example, I once did a science fair project on crayons and the types of temperatures it took to melt them. Not only was it easy, it also turned out extremely pretty.

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Find the self-inductance of a 1700-turn solenoid 55 cm long and 4.0 cm in diameter. Express your answer with the appropriate uni

Nitella [24]

The self-inductance of the solenoid is 8.25 mH.

The given parameters;

number of turns, N = 1700 turn
length of the solenoid, l = 55 cm = 0.55 m
diameter of solenoid, d = 4 cm
radius of the solenoid, r = 2 cm = 0.02 m

The area of the solenoid is calculated as follows;

$A = \pi r^2\\\\A = \pi \times (0.02)^2\\\\A = 0.00125 \ m^2$

The self-inductance of the solenoid is calculated as follows;

$L = \frac{\mu_o N^2 A }{l} \\\\L = \frac{(4\pi \times 10^{-7}) \times 1700^2 \times 0.00125}{0.55} \\\\L = 0.00825 \ H\\\\L = 8.25\ mH$

Thus, the self-inductance of the solenoid is 8.25 mH.

Learn more here:brainly.com/question/15612168

4 0

3 years ago

U WILL GET 25 POINTS PLEASE HELP

balandron [24]

Answer:

Hopefully, this is right.

Explanation:

Answer is 5.43.

3 0

3 years ago

Neon signs require 12 kv for their operation. to operate from a 244 v line, what must be the ratio of secondary to primary turns

jek_recluse [69]

The answer would be 49. Check the attach file for solution.

3 0

4 years ago

Determine the accelerations that result when a 45 N net force is applied to 3kg object

svp [43]

Answer:

acceleration is 18

Explanation:

45N/3kg=18

4 0

3 years ago

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Light incident on a surface at an angle of 45 degrees undergoes diffused reflection. At what angle will it reflect?

Alexus [3.1K]

at any angle between -90 and 90 degrees. In the diffused reflection ,the surface is rough and the direction of light in not the same as the incident light. It can be reflected at any angle

4 0

3 years ago

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