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3 years ago

Explain why energy must be added to a solid to cause it to melt.

Physics

2 answers:

Tema [17]3 years ago

8 0

Most of the time heat melts solids. hope that helps :)

Katarina [22]3 years ago

7 0

A solid state means that the atoms are pretty much locked into one position. d they don't have enough energy to break away from each other. But when you add energy through heat the atoms to gain enough energy that they begin to break away from each other.

In Simple terms, when heat is added to the solid thing it allows it to get enough energy to let that solid substance melt.

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The capacitance of a capacitor depends on what?

bonufazy [111]

Answer:

The capacitance of a capacitor depends on the charge and voltage of a system. It is also dependent, if present, on the dielectric as well.

General Formulas and Concepts:
Gauss's Law

Capacitance Formula: $\displaystyle C = \frac{Q}{V}$

Q denotes charge
V denotes voltage

Dielectric Capacitance Formula: $\displaystyle C = \kappa C_0$

C₀ denotes original capacitance
κ denotes the dialectic constant

Explanation:

A capacitor stores charge when run through an electrical current. The capacitance is how much charge a capacitor can hold.

We can define the relationship of capacitance by using the formula. Capacitance is inversely proportional to the potential energy, or voltage, of the system. Therefore, you will need to know what the charge Q of the system as well has voltage V in order to find the capacitance.

If there is a dielectric involved inside the capacitance, you also must incorporate the value of the dielectric constant into your capacitance. A dielectric is directly proportional to the capacitance; the bigger the dielectric constant, the bigger capacitance, as denoted in our equation.

Topic: AP Physics C - EMAG

Unit: Gauss's Law

5 0

2 years ago

5. A 10 kg ball is traveling at the same speed as a 1 kg ball. Compared to the 10 kg ball, the 1 kg ball has (2 points)

suter [353]

What’s the rest of the question or is that it?

4 0

3 years ago

When an object moves in a circular path, it accelerates toward the center of the circle as a result of ______.

kolbaska11 [484]

Answer:

Centripetal acceleration

Explanation:

An object moving around a xirxular path maintains its route as a result of centripetal force. However, its acceleration is caused by centripetal acceleration. Despite centripetal acceleration not being among the choices, it is the right answer.

Centripetal acceleration helps an object that navigates around a circular path to accelerate while centripetal force enables the movement of an object around a circular path to move inwards. Momentum, given as one of the choices is product of mass and velocity while friction is the force opposing movement of an object around a surface.

3 0

4 years ago

Sinusoidal waves 5.00 cm in amplitude are to be transmitted along a string that has a linear mass density of 4.00× 10⁻²kg /m . T

mylen [45]

The highest frequency (f) at which the source can operate is given as:

f = 55.133Hz.

<h3>What are sinusoidal waves?</h3>

The most realistic representation of how many objects in nature change state is a sine wave or sinusoidal wave.

A sine wave depicts how the intensity of a variable varies over time.

<h3>What is the calculation justifying the above result?</h3>

P = (1/2) μω²A²v

300W = 1/2 (4 X 10⁻²kg/m) ω₂ (0.05m)²v

Thus the wave speed is:

v = √(T/μ)

= √[(100N)/(4 X 10⁻²kg/m)

= 50m/s

300W = 1/2(4 X 10⁻²kg/m) ω²(0.05m)² (50m/s)

⇒ ω = 346.41 1/s

ω = 346.41 1/s

= 2πf

⇒ f = 55.133Hz

Learn more about Sinusoidal waves:
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7 0

2 years ago

Consider the chemical reaction involving graphite as the reactant:

ziro4ka [17]

Answer:

D may likely be your answer

8 0

3 years ago