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mamaluj [8]
3 years ago
6

A 40-kg dog on roller skates is acceleration at 2 m/s^2. What is the net force of the dog

Chemistry
1 answer:
vaieri [72.5K]3 years ago
7 0

Answer:

<h2>80 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 40 × 2

We have the final answer as

<h3>80 N</h3>

Hope this helps you

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Chemical bonds are likely to form when_____
Viefleur [7K]

Answer: When the electrons in an element are more than the required, a bond is formed with other element which has deficiency of electron and in case when electrons are less in numbers the vice versa happens. Such kind of chemical bonds are known as ionic bond.

Explanation:

7 0
3 years ago
A scientist develops a new experiment to test atomic theory. His results do not agree with the theory.
slamgirl [31]

Answer:

When the results of a new experiment to test atomic theory do not agree with the theory, scientist will repeat the experiment to make sure that his results are reliable.

Explanation:

In the scientific context, each new experiment must be performed with precision and following the steps of the scientific method.

An experiment that does not provide reliable data to demonstrate a theory must be reviewed in detail and performed again to confirm the data obtained in the first attempt.

A theory is a postulate that tries to explain a natural phenomenon, but whose argument can be discussed or does not have the acceptance of a law. When the theory is proven and there are no arguments against it, it can be universally accepted and becomes a law.

The other options are not valid due to:

  • <u><em>Scientists worldwide will reject atomic theory because of the new results</em></u><em>.  A theory cannot be discarded without solid arguments or evidence in order to dismiss it and establish a new one.</em>
  • <u><em>The scientist will change his results to agree with the accepted theory</em></u><em>.  This would be an unethical procedure and unacceptable to the scientific community.</em>
  • <em><u>Other scientists will reject the results because they do not agree with the theory</u></em><em>. The opinion of other scientists is not enough to dismiss a theory, if it has a valid scientific basis.</em>

8 0
3 years ago
Read 2 more answers
What is Science-Based Medicine?
SSSSS [86.1K]

Answer: Medicine is a scientific field whose subject of research is the health and well-being of living whips.

Explanation:

Primarily medicine deals with the study of man and the treatment of man, but also of some animal species. Two principles are founded: theoretical research and practical, or often called a clinical policy. The academic and research law will enable a specific area, disease, congenital disability, or condition to be defined, studied in detail, and after the conclusion of tests performed. Concluded medical theory is most often put into a usable form through various educational processes, which will lead to the ultimate goal - to improve the health of living forms on which this theory will be applied.

6 0
3 years ago
What are the solutions to the equation x2 + 4x + 5 = 0?​
dusya [7]

Answer:

-1, -4

Explanation:

x^2+4x+5=0

Factoring, you get:

(x+4)(x+1)=0

To find what x can be, you need to realize what could make this equation true. To set the left side equal to 0, either one of the terms in parentheses must be equal to 0. To do that, x must be the negative of the other term, so that they can cancel each other out. Therefore, x is -4 and -1. Hope this helps!

4 0
3 years ago
Read 2 more answers
At 500 degree C, F_2 gas is stable and does not dissociate, but at 840 degree C, some dissociation occurs: F_2 (g) 2 F(g). A fla
bazaltina [42]

Answer:

2.73 is the equilibrium constant for the dissociation of F_2 gas at 840 degree Celsius.

Explanation:

F_2(g)\rightleftharpoons 2F(g)

Initial

0.600 atm    0

Equilibrium

(0.600 atm - p)        2p

Total pressure at equilibrium = P = 0.984 atm

P= 0.600 atm - p)+2p=0.984 atm

p = 0.384 atm

Partial pressure of the F_2 gas , p_{f_2}= (0.600 atm - 0.384 atm)=0.216 atm

Partial pressure of the F gas, p_{f} = 2(0.384 atm)=0.768 atm

K_p=\frac{(p_{F})^2}{p_{F_2}}

K_p=\frac{(0.768 atm)^2}{0.216 atm}=2.73

2.73 is the equilibrium constant for the dissociation of F_2 gas at 840 degree Celsius.

7 0
4 years ago
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