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Naily [24]
2 years ago
6

Modern rechargeable batteries require rare earth elements to build. Why are modern rechargeable batteries expensive and a concer

n as electric vehicles become more popular?
The batteries are made from a common nonrenewable resource.
The batteries are made from a common nonrenewable resource.

The batteries are made from a common renewable resource.
The batteries are made from a common renewable resource.
Physics
1 answer:
My name is Ann [436]2 years ago
8 0

The batteries being made from a common nonrenewable resource is the

reason why modern rechargeable batteries are expensive.

<h3>What is a Non-renewable resource?</h3>

Non-renewable resource are those in which it is very difficult to replace

them easily through natural methods. This makes it hard to meet up with

customer's use.

This thereby makes it very expensive and not able to meet up with

customer's needs. This is why renewable sources are more preferable.

Read more about Non-renewable resource here brainly.com/question/858812

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If the particles of an object have more kinetic energy than the particles of an object, what must be true?
son4ous [18]

If the objects comprise a gas, then the first object contains more
thermal energy (heat) than the second object.

If the objects are solid, then you can't draw any conclusion unless
both objects have the same total mass. If that's the case, then the
first object must be moving faster than the second one.


7 0
3 years ago
* 1a Average speed
ruslelena [56]

Explanation:

\implies   v_{av} =  \dfrac{total \: displacement}{total \: time}

\implies   v_{av} =  \dfrac{100}{10}

\implies   v_{av} =10 \:  {ms}^{ - 1}

4 0
2 years ago
Two 800 cm^3 containers hold identical amounts of a monatomic gas at 20°C. Container A is rigid. Container B has a 100 cm^2 pis
Vikki [24]

Answer:

1) Final Temperature of the gas in A will be GREATER than the temperature in B

2) Diagram of both processes on a single PV has been uploaded below

3) The Initial  pressures in containers A and B is 3039.87 J/liters

4) the final volume of container B is 923.36 cm³

Explanation:

Given that;

Temperature = 20°C = 293 K

mass of piston = 10 kg

Area = 100cm³

Volume V = 800 cm³ = 0.8 L

ideal gas constant R = 8.3 J/K·mol

1)

Final Temperature of the gas in A will b GREATER than the temperature in B

2)

Diagram of both processes on a single PV has been uploaded below,

3)

Initial  pressures in containers A and B

PV = nRT

P = RT/V

we substitute

P = (8.3 × 293) /  0.8

P = 2431.9 / 0.8

P = 3039.87 J/liters

Therefore, The Initial  pressures in containers A and B is 3039.87 J/liters

4)

Given that;

power = 25 W

time t = 15s

the final volume of container B = ?

we know that;

work done = power × time

work done = 25 × 15 = 375

Also work done = P( V₂ - V₁ )

so we substitute

375 = 3039.87 ( V₂ - 0.8 )

( V₂ - 0.8 ) = 375 / 3039.87

V₂ - 0.8 = 0.12336

V₂ = 0.12336 + 0.8

V₂ = 0.92336 Litres

V₂ = 923.36 cm³

Therefore, the final volume of container B is 923.36 cm³

7 0
3 years ago
A exaplme of a spoiler in flight <br>​
Degger [83]

Answer:bad?

Explanation:

3 0
2 years ago
Read 2 more answers
a rectangular block is having 5cm,5cm and 8cm with density of 7.).5g/cm^2. what is the mass of the block​
Art [367]

Answer:

Explanation:

Volume of the rectangular block= V = l×b×h

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Density of block= d= 7.5 g/cm³

Mass of the block= m= d× V

= 1500 grams=1.5 kg

3 0
3 years ago
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