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3 years ago

What type of energy does a battery have?

2 answers:

7 0

♥ A battery contains the energy known as Electrical energy.
Kind of how you need electricity to power things. <span>

~ Hope this helps!
</span>

Zepler [3.9K]3 years ago

4 0

Batteries contain chemical energy

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Is there air resistance in space?........HELP!!!!!

Leokris [45]

There's no air in space, so there's no air resistance there.

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3 years ago

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What is the term to describe the rate of flow of electricity?

SVEN [57.7K]

The rate of flow of electric CHARGE past any point is described in the unit of electric CURRENT ... the Ampere.

7 0

3 years ago

SOMEONE PLEASE HELP!!

Arisa [49]

Hello!

$\large\boxed{\text{C. 7,350,000 J}}$

Use the equation:

$PE = mgh$

Where:

m = mass of the object (kg)

g = acceleration due to gravity (≈9.8 m/s)

h = height above ground (m)

Plug the given values into the equation:

PE = 7500 · 9.8 · 100

PE = 7,350,000 Joules.

7 0

2 years ago

Suppose that we use a heater to boil liquid nitrogen (N2 molecules). 4480 J of heat turns 20 g of liquid nitrogen into gas. Note

love history [14]

Answer:

The energy is $9.4\times10^{-21}\ J$

(a) is correct option

Explanation:

Given that,

Energy = 4480 j

Weight of nitrogen = 20 g

Boil temperature = 77 K

Pressure = 1 atm

We need to calculate the internal energy

Using first law of thermodynamics

$Q=\Delta U+W$

$Q=\Delta U+nRT$

Put the value into the formula

$4480=\Delta U+\dfrac{20}{28}\times8.314\times77$

$\Delta U=4480-\dfrac{20}{28}\times8.314\times77$

$\Delta U=4022.73\ J$

We need to calculate the number of molecules in 20 g N₂

Using formula of number of molecules

$N=n\times \text{Avogadro number}$

Put the value into the formula

$N=\dfrac{20}{28}\times6.02\times10^{23}$

$N=4.3\times10^{23}$

We need to calculate the energy

Using formula of energy

$E=\dfrac{\Delta U}{N}$

Put the value into the formula

$E=\dfrac{4022.73}{4.3\times10^{23}}$

$E=9.4\times10^{-21}\ J$

Hence, The energy is $9.4\times10^{-21}\ J$

4 0

2 years ago

The circuit below shows some of the circuity in a small toy robot. When the circuit is on, the robot moves its arms (the motor)

djyliett [7]

Answer:

dear can you provide the circuit of the robot

6 0

3 years ago