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3 years ago

Which statement is always false for athletes participating in team sports

1 answer:

8 0

I think you forgot to include the options but based on my research, the correct answer is "Conflict resolution is a sign of poor sportsmanship." This statement is always false for athletes participating in team sports. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.

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The hydrocarbon used to manufacture foam plastics is called styrene. Analysis shows composition to be 92.25% C and 7.75% H. Anal

zhannawk [14.2K]

Answer:

molecular formula = $C_{8} H_{8}$

Explanation:

Given data

c = 92.25%

H = 7.75%

molar mass = 104 g/mol

to find out

the empirical and molecular formula for styrene

solution

we know that

styrene 1 g contain = 0.9225 g C and 0.0775 g H

C = 104 × 0.9225 g / 12 g/mol

C = 7.995 mol = approx 8 mol

and

H = 104 × 0.0775 g / 1 g/mol

H = 8.06 mol = approx 8 mol

so we say that 1 mole of styrene have 8 mole of C and H

molecular formula = $C_{8} H_{8}$

8 0

4 years ago

What is the % error in using g = 10.0 m/s^2? (Take the value ofg as 9.8 m/s^2)

Alenkasestr [34]

Answer:

So percentage error will be 2 %

Explanation:

We have given initial value of acceleration due to gravity $g=10m/sec^2$

And final value of acceleration due to gravity $g=9.8m/sec^2$

We have to find the percentage error

We know that percentage error is given by $percentage\ error=\frac{initial\ value-final\ value}{initial\ value}\times 100$

So $percentage\ error=\frac{10-9.8}{10}\times 100=2$ %

4 0

3 years ago

Does the mass of an object dictate the acceleration of<br> a falling object

muminat

Answer:

No.

Explanation:

Because the acceleration of falling objects is constant and is not affected by mass

5 0

3 years ago

Read 2 more answers

A square loop of length 0.1 m on each side is sitting in a magnetic field that is increasing at a rate of 0.1 T/second. What can

Zolol [24]

Answer:

The induced emf can be found by Faraday’s Law.

$\epsilon = -\frac{d\Phi_B}{dt}$

$\Phi_B = BA = B(0.1)^2 = 0.01B$

The magnetic field is increasing at a rate of 0.1T/s. So,

$\frac{dB}{dt} = 0.1$

Finally,

$\epsilon = \frac{dBA}{dt} = 0.01\frac{dB}{dt} = 0.01\times 0.1 = 0.001 V$

Explanation:

Faraday’s Law states that a change in the magnetic flux induces an emf in the circuit. The magnetic flux is the multiplication of magnetic field and the area of the loop. The area of the loop is simple, and the change of magnetic field as a function of time is given in the question.

The minus sign in front of the Faraday’s Law means that the induced current always opposes the change of the magnetic flux. Since we do not know the direction of the magnetic field in this question, we cannot find the direction of the induced emf on the loop.

4 0

3 years ago

A proton moves with a speed of 3.60 106 m/s horizontally, at a right angle to a magnetic field. what magnetic field strength is

zmey [24]

36
Because hadagnmhh hhnhhby. J

5 0

4 years ago