3 years ago

Dicuss the law of conservation of energy. Provide atleast one example that supports your description

2 answers:

8 0

The Law of Conservation of Energy states that energy cannot be created or destroyed.

Ex: Electricity only changes forms (potential, kinetic, heat, etc...)

ozzi3 years ago

3 0

The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another.

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otez555 [7]

Answer:

-8

Explanation:

if he starts at ten and takes 10 steps left he'll be at -10... then if he takes 2 steps to the right , he's at -8 on the number-line

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3 years ago

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Qual a capacidade térmica de um objeto que, ao receber 10000 cal de energia, tem sua temperatura elevada de 25°C para 75°C?

Stolb23 [73]

Answer:

$200 cal/^{\circ}C$

Explanation:

When heat energy is supplied to an object, the temperature of the object increases according to the equation:

$Q=C\Delta T$

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In this problem we have:

$Q=10,000 cal$ is the energy supplied

$\Delta T=75C-25C=50C$ is the change in temperature of the object

Therefore, the heat capacity of the object is:

$C=\frac{Q}{\Delta T}=\frac{10,000}{50}=200 cal/^{\circ}C$

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dmitriy555 [2]

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Large electrical shifting magnets have concentrated retaining strength to lift dense, ferric objects and a deep-reaching magnetization. An immensely useful materials management technique is these electromagnetic rises.

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2 years ago

does the wavelength of the sound increase, decrease, or stay the smae as the musician changes from the first sound to the second

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Earth's gravity and the satellite's velocity keeps it so that it stays in orbit. (there is a more complicated side, too...)

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