The picture shows it has a real life something to display conservation of energy with kinetic energy and potential energy.
Five sentences are for potential and kinetic energy. Potential energy is to energy an object when it stores. Kinetic energy is something to motion. When the potential energy is slows down the potential energy it might be increases. As from the object when the speeds up and it is decreases to potential energy.
Kinetic energy is to calculated by KE= mass×velocity²/2 as a fraction.
Potential energy is to calculated by PE= mass×g×height.
And the another picture it has a <span>energy, kinetic energy, mechanical energy, conservation of energy.
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Answer:
<em>The density of rock = 3.37 g/cm³</em>
Explanation:
Density: Density can be defined as the ratio of the mass of a body to the volume. The S.I unit of density is kg/m³. It can be expressed mathematically as ,
D = M/V............................................... Equation 1
Where D = density of the body, M = mass of the body, V = volume of the body.
From Archimedes' principle, a body will displace a volume of water equal to its volume.
Therefore, Volume of the object = volume of water displaced
<em>Given: M = 300 g, V = volume of water displace = 89.0 cm³.</em>
<em>Substituting these values into equation 1</em>
<em>D = 300/89</em>
<em>D = 3.37 g/cm³</em>
<em>The density of rock = 3.37 g/cm³</em>
Answer:
It would take time for the capacitor to discharge from to .
It would take time for the capacitor to discharge from to .
Note that , and that.
Explanation:
In an RC circuit, a capacitor is connected directly to a resistor. Let the time constant of this circuit is , and the initial charge of the capacitor be . Then at time , the charge stored in the capacitor would be:
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<h3>a)</h3>
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Apply the equation :
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The goal is to solve for in terms of . Rearrange the equation:
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Take the natural logarithm of both sides:
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<h3>b)</h3>
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Apply the equation :
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The goal is to solve for in terms of . Rearrange the equation:
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Take the natural logarithm of both sides:
.
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A mechanical wave must have a medium.
Hope this helps,
♥<em>A.W.E.<u>S.W.A.N.</u></em>♥
Density = Mass / Volume
Mass = 0.69kg
Volume of cylinder (coin) = Area X Height
Area of coin = (3.14)(0.03)^2
Height = Thickness = 0.003m
Volume of coin = (0.0003) X (3.14)(0.03)^2
Density = (Mass of coin) / (Volume of coin)