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Fantom [35]
3 years ago
8

If ∆H = + VE , THEN WHAT REACTION IT IS1) exothermic2) endothermic​

Physics
1 answer:
podryga [215]3 years ago
3 0

Answer:

endothermic

Explanation:

An endothermic is any process with an increase in the enthalpy H (or internal energy U) of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system.

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A proton and an electron are released from rest, with only the electrostatic force acting. Which of the following statements mus
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Answer:

their electrical potential energy decreases. True, because of the negative sign as the distance decreases, it becomes more negative.

The kinetic energy increases. True, the force is attractive as the distance decreases the force increases, so acceleration and therefore the speed

Explanation:

The only force between the proton and the electron is electric

      Fe = k q1q2 / r2

      Fe = - k e2 / r2

We can see that it is an attractive force (negative sign)

The electric power energy is

       U = k q1 q2 / r

       U = -k e2 / r

 

The kinetic energy is

       K = ½ m v2

With the expressions for each term we can analyze the sentences :

Their electric potential energy increases. False,

their electrical potential energy decreases. True, because of the negative sign as the distance decreases, it becomes more negative.

The kinetic energy increases. True, the force is attractive as the distance decreases the force increases, so acceleration and therefore the speed

Kinetic energy decreases False

The acceleration decreases.  False, as the force increases so does the acceleration

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3 years ago
According to Newton’s Third Law, action and reaction are
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<span>B. equal and in opposite directions</span>
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A toroidal solenoid has an inner radius of 12.0 cm and an outer radius of 15.0 cm . It carries a current of 1.50 A . Part A How
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Answer:

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Explanation:

It is given that,

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The formula for the magnetic field at some distance from its center is given by :

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N = 1750

So, the number of turns must have in a toroidal solenoid is 1750. Hence, this is the required solution.

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Answer:

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Newton's second law states that  the unbalanced force applied to the object accelerates the object which is directly proportional to the force and inversely to the mass.

If we apply force to a toy car then It will accelerate.

This is how Newton's second law of motion is verified.

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thxxx for pointsss

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have a good day :)

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