3 years ago

Pleasseee answer, I really need this

Physics

1 answer:

klio [65]3 years ago

3 0

Answer:

Explanation:

Technically none of them are completely correct, however the Professor likely just wants you to recognize that endothermic means absorbing heat which therefore means that the product should be hotter than than the reactants.

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Two balloons are charged with an identical quantity and type of charge: -6.25 x 10-6 C. They are held apart at a separation dist

steposvetlana [31]

Answer:

The electric force between them is 878.9 N

Explanation:

Given:

Identical charge $q = -6.25 \times 10^{-6}$ C

Separation between two charges $r = 0.02$ m

For finding the electrical force,

According to the coulomb's law

$F = \frac{k q^{2} }{r^{2} }$

Here, force between two balloons are repulsive because both charges are same.

Where $k = 9 \times 10^{9}$

$F = \frac{9 \times 10^{9} \times (-6.25 \times 10^{-6} )^{2} }{4 \times 10^{-4} }$

$F = 878.9$ N

Therefore, the electric force between them is 878.9 N

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3 years ago

A jet plane can travel at a speed of 600 km/h. How far will the jet travel if it flies at full speed for 2 hours?

ololo11 [35]

Answer:

that jet will fly 1200 km in 2 hours

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3 years ago

You go outside on a bright, warm day, How can you tell that you are absorbing radiant energy from the sun?

iVinArrow [24]

Answer:

you start sweating and it would get hot

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3 years ago

Which of the following can provide direct current?

Akimi4 [234]

The answer is d) batteries

mark as brainliest if it’s helpful

7 0

3 years ago

The correct equation for the x component of a vector named A with an angle measured from the x axis would be which of the follow

Lady_Fox [76]

Answer:

Acosθ

Explanation:

The x-component of a vector is defined as :

Magnitude * cosine of the angle

Maginitude * cosθ

The magnitude is represented as A

Hence, horizontal, x - component of the vector is :

Acosθ

Furthermore,

The y-component is taken as the sin of the of the angle multiplied by the magnitude

Vertical, y component : Asinθ

8 0

3 years ago