Mrs. Patil travels from her home to work in 0.25 hours. The direct distance between her home and work is 8.0 miles. If Mrs. Patil travels 12.4 miles from home to her job, what is her average velocity during the trip?

Answers

Answer 1

Answer:

Regardless of the path taken, at the end of the trip Mrs. Patil will be 8.0 miles away from home. If the path taken involves a trip lasts 0.25 hours, then the average velocity over the trip is

$\frac{8.0\,\mathrm{mi}}{0.25\,\mathrm h}=32\,\frac{\mathrm{mi}}{\mathrm h}$

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The force of repulsion between two identical positive charges is 0.800 N when the charges are 0.100 m apart. Find the value of each charge.

Answers

Answer:

Value of each charge is given as

$q = 9.43 * 10^(-7) C$

Explanation:

As we know that electrostatic force between two charges is given as

$F = (kq_1 q_2)/(r^2)$

here we know that

$q_1 = q_2 = q$

$F = 0.800 N$

r = 0.100 m

now we have

$F = ((9* 10^9) q^2)/((0.100)^2)$

$0.800 = 9* 10^(11) q^2$

$q = 9.43 * 10^(-7) C$

Compare and contrast the general characteristics of a gas giant planet and one of the inner planets (such as Mercury, Earth, Venus or Mars)? Give two differences and one similarity.

Answers

The gas planets usually have extremely high gravitational pulls, the surface isn't solid (since its a gas planet), and gas planets are larger than the inner planets.
Similarities- These planets all have moons and they both revolve around the sun (obviously).

Hope this helps.

40 g of magnesium and 40 g of oxygen react in a chemical reaction in a close system which of the following must result

Answers

Answer:

Option "D" is the correct answer to the following question.

Explanation:

According to The law of conservation of mass, in a chemical reaction mass neither created nor destroyed.

So,

Total product = Mass of magnesium + Mass of oxygen

Total product = 40 gram + 40 gram

Total product = 80 gram

Therefore, option "D" is the correct answer

Which statement describes between a cup if cold water and a cup of boiling water

Answers

The thermal energy keeps these two changing their temperature over time.

The surrounding temperature (environment) clearly effects the cold water AND the boiling water.

Eventually, both would reach an equilibrium in temperature.

How many joules are in 10,000 Electron Volts

Answers

1.602177e-15 joules are in 10,000 electron volts

1.602177e-15 joules are present in 10,000 Electron Volts :)

What is the difference between the two electrons of a combined hydrogen atom that has formed H2. Like this:

Forgive my drawing skills

Answers

For both of the reactions shown, the hydrogen molecules are oxidized and the oxygen atoms are reduced.
I hope I helped! =D

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