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3 years ago

What is the "basics" of a proper experiment?

Physics

1 answer:

lara31 [8.8K]3 years ago

5 0

Answer:

sorry in my sense, an experiment once only changes one variable and need a control setup for experimental setup to make sure is fair test

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Which jovian planet should have the most extreme seasonal changes? a. Saturn b. Neptune c. Jupiter d. Uranus

Maksim231197 [3]

Answer:

D). Uranus.

Explanation:

Jovian planets are described as the planets which are giant balls of gases and located farthest from the sun which primarily include Jupiter, Saturn, Uranus, and Neptune.

As per the question, 'Uranus' is the jovian planet that would have the most extreme seasonal changes as its tilted axis leads each season to last for about 1/4 part of its 84 years orbit. The strong tilted axis encourages extreme changes in the season on Uranus. Thus, <u>option D</u> is the correct answer.

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3 years ago

How does the constitution reflect the principle of separation of powers?

aniked [119]

The student is expected to analyze how the U.S. Constitution reflects the principles <span>of limited government, republicanism, checks and balances, federalism, </span>separation of powers, popular sovereignty, and individual rights.Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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2 years ago

Sara and Greg built an electromagnet in science class. They wrapped 50 turns of copper wire around an iron nail and hooked the e

Iteru [2.4K]

Answer:Wrap more turns of wire around the nail.

Explanation:The power of an electromagnet is directly proportional to the amount of electricity passing through that electromagnet.

Now,if they increase the number of rounds of the copper coil,the electricity conducting surface amount will also increase.

And that's why the electricity passing through that electromagnet will increase along with the electromagnetic power of that electromagnet.

• Increasing the battery voltage :

If they increase the battery voltage,the electricity which is passing through that electromagnet will also increase in amount .

And as discussed previously,the increasing amount of electricity will also increase the electromagnetic abilities of the electromagnet.

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2 years ago

Read 2 more answers

Describe how a wheel and axle work?

andrezito [222]

A weally works when you pull something and a axle is something that you can push

Explanation:

I hope this helps

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2 years ago

Two resistors of resistances R1 and R2, with R2>R1, are connected to a voltage source with voltage V0. When the resistors are

ehidna [41]

Answer

The Value of r = 0.127

Explanation:

The mathematical representation of the two resistors connected in series is

$R_T = R_1 +R_2$

And from Ohm law

$I_s =\frac{ V}{R_T}$

$I_s = \frac{V_0}{R_1 +R_2} ---(1)$

The mathematical representation of the two resistors connected in parallel is

$R_T = \frac{1}{R_1} +\frac{1}{R_2}$

$= \frac{R_1 R_2}{R_1 +R_2}$

From the question $I_p =10I_s$

=> $I_p =10I_s = \frac{V_0 }{\frac{R_1R_2}{R_1 +R_2} } = \frac{V_0 (R_1 +R_2)}{R_1 R_2}---(2)$

Dividing equation 2 with equation 1

=> $\frac{10I_s}{I_s} =\frac{\frac{V_0 (R_1 +R_2)}{R_1 R_2}}{\frac{V_0}{R_1 +R_2}}$

$10 = \frac{(R_1+R_2)^2}{R_1 R_2}----(3)$

We are told that $r = \frac{R_1}{R_2} \ \ \ \ \ = > R_1 = rR_2$

From equation 3

$10 = \frac{(1-r)^2}{r}$

$=> \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1+r^2 + 2r = 10r$

$=> \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ r^2 -8r+1 = 0$

Using the quadratic formula

$r =\frac{-b\pm \sqrt{(b^2 - 4ac)} }{2a}$

a = 1 b = -8 c =1

$= \frac{8 \pm\sqrt{((-8)^2- (4*1*1))} }{2*1}$

$r= \frac{8+ \sqrt{60} }{2} \ or \ r = \frac{8 - \sqrt{60} }{2}$

$r = \ 7.87\ or \ r \ = \ 0.127$

Now r = 0.127 because it is the least value among the obtained values

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2 years ago