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3 years ago

It is important to use ______ sources of information to evaluate strengths and weaknesses of claims, arguments, or data.

Physics

2 answers:

Lemur [1.5K]3 years ago

6 0

D.multiple. because you always have to double check to see if its true or not. Majority rule.

quester [9]3 years ago

6 0

It would be D. The reason is because you always want to cross-reference your information of multiple, reliable sites to confirm (Or deny) you information. For example, if I googled "Do cats really have nine lives?" The results appear as a study from a college in New York and an article about cats. You can't really trust a random website, as anyone can edit it and make it inaccurate. That means you should just read the study, right? Wrong. You should read both of the pages, and find which parts seem to be in both of them. These parts are likely accurate, because they were on two different sources.

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The magnitude of the electrostatic force between two identical ions that are separated by a distance of 5.0A is 3.7×10^-9N.a) wh

jeyben [28]

Explanation:

Given that,

Electrostatic force, $F=3.7\times 10^{-9}\ N$

Distance, $r=5\ A=5\times 10^{-10}\ m$

(a) $F=\dfrac{kq^2}{r^2}$ , q is the charge on the ion

$q=\sqrt{\dfrac{Fr^2}{k}}$

$q=\sqrt{\dfrac{3.7\times 10^{-9}\times (5\times 10^{-10})^2}{9\times 10^9}}$

$q=3.2\times 10^{-19}\ C$

(b) Let n is the number of electrons are missing from each ion. It can be calculated as :

$n=\dfrac{q}{e}$

$n=\dfrac{3.2\times 10^{-19}}{1.6\times 10^{-19}}$

n = 2

Hence, this is the required solution.

8 0

3 years ago

Which statement is supported by this scenario?

Temka [501]

Answer:

For Yanni, the speed of the ball is 15 m/s, and for the quarterback, the speed of the ball is 8 m/s.

Explanation:

6 0

2 years ago

Read 2 more answers

A satellite’s velocity is 30000m/s. After 60 secs, it’s velocity shows to 15000m/a. What is the satellite’s acceleration?

Orlov [11]

Answer:

Acceleration = 9 × 10^5 m/s^2 ( deceleration )

Explanation:

From the first equation of motion:

V = u + at

15000 = 30000 + 60a

a = ( 15000-30000)/60

a = 9 × 10^5 m/s^2

4 0

2 years ago

the presence of which magnetic feature best explains why a magnet can act a distance on other magnets or on objects containing c

katen-ka-za [31]

Magnetic fields

Explanation:

The presence of magnetic fields best explains why a magnet can act a distance on other magnets or on objects containing certain metals.

Magnetic fields are lines of forces around a bar magnet.
These lines of forces attracts and repels other magnetic bodies and metallic bodies round it.
Magnetic lines of forces originates at the north pole and enters in the south pole.
Areas around a magnetic body are bounded by force fields.
A magnet has permanent magnetic fields round it.

learn more:

Electromagnet brainly.com/question/2191993

#learnwithBrainly

8 0

3 years ago

Simple machines are divided into two main categories. Levers and inclined planes.<br> True or false

avanturin [10]

The answer is False. Simple machines are divided into three main categories, and not two. They are Levers, inclined planes and Pulleys. <span>These three simple machines all change force in such a way that it makes it easier for us to move an object. </span>

5 0

3 years ago