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2 years ago

The efficiency of an average gasoline-powered car is about 20%. This means

Physics

2 answers:

Dennis_Churaev [7]2 years ago

7 0

Ayy I really hope the answer the last person gave you was right bc I have no idea

nydimaria [60]2 years ago

4 0

Answer:

This means C.the car uses 20% of the energy store in the gasoline for motion.

Explanation:

I hope this helps.

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HELP ASAP!! The voltage from a power supply to a light bulb is increased by 2 volts and the current is recorded. A graph of this

uysha [10]

Answer:

It is a resistor since as u increases v increases so they are directly propotional

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2 years ago

Consider the following three statements: For any electromagnetic radiation, the product of the wavelength and the frequency is a

boyakko [2]

Answer:

The correct answer is B. Statements (i) and (ii) are true.

Explanation:

Fisrt statement:

Electromagnetic radiation such as wave, wavelength λ and oscillation frequency ν are related by a constant, the speed of light. The equation is given by:

$c= \lambda \nu$

So the first statement is true.

Second statement:

$c=\lambda \nu\\c= 3.0 A \times 1.0\times 10^{18} Hz\\c= 3.0\times 10^{-10} m \times 1.0\times 10^{18} s^{-1}\\c=3\times 10^8 \frac{m}{s}$

The value of c in the vacuum is 3×10⁸ m/s. Hence, the second statement is true.

Third statement:

The speed of any electromagnetic radiation is constant regardless the type of radiation.

Hence, the third statement is false.

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2 years ago

How many planets are in our Solar system? I'll give brainliest

Dima020 [189]

Answer:

The following is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

That is from our solar system

Explanation:

8 0

2 years ago

Which statement best describes the atoms of elements that form compounds by covalent bonding?

k0ka [10]

Answer:

they share electrons between them.

Explanation:

taking the test rn lol i think its right

4 0

3 years ago

What happens to the particles of the liquid inside a thermometer when the thermometer is heated?

aev [14]

The particles of the liquid inside a thermometer speed up and spread apart when the thermometer is heated. In short, the particles expand from one another when they're heated, and become condensed and compact when chilled.

5 0

3 years ago

Read 2 more answers