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svet-max [94.6K]
4 years ago
5

Which best describes how energy changes form in a car's engine?

Physics
2 answers:
andrezito [222]4 years ago
6 0

Answer:

Multiple transformations occur because the chemical energy of the fuel is changed to several forms of energy

Explanation:

In a car engine, multiple energy transformation takes place. The chemical energy storef in fuel is transformed into mechanical energy which helps move the wheels of the vehicle.

The mechanical energy can also be transformed into electrical energy through a sort of dynamo system in vehicles. Stereo players use the electrical energy to produce sound.

We see that multiple energy conversions are common in a motor car.

andreev551 [17]4 years ago
3 0

Answer:

C. Multiple transformations occur because the chemical energy of the fuel is changed to several forms of energy.

Explanation:

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When a rigid body rotates about a fixed axis, all the points in the body have the same A. centripetal acceleration B. tangential
Leto [7]

Answer:

The angular acceleration is same at all the points in the body.

Option (D) is correct.

Explanation:

Given:

When a rigid body rotates about a fixed axis, all the points in the body have the same,

For finding which quantity is same we use pure rotational concept,

 v = \omega r

Where \omega = angular frequency, r = radius of rigid body

When a rigid body rotates about a fixed axis angular velocity of all the points in the body are same.

But the tangential speed, tangential acceleration, linear displacement, and centripetal acceleration depend on the position of the points and hence they are not the same.

Therefore, the angular acceleration is same at all the points in the body.

8 0
3 years ago
What is the speed, in m/s, of a wave on a cord if it has a wavelength of 4m and a period of 0.5 s
Fittoniya [83]
Using v=Π/p = 4/0.5 = 8ms-¹
8 0
3 years ago
If the voltage of a circuit of 1 bulb has a resistance of 45 V and produces
Vlad1618 [11]

Answer:

The resistance of the bulb should be 90

Explanation:

OHMS Law states that the voltage(v) divided by the current (c) in amps (a) will give you your resistance

4 0
3 years ago
Movement of a stationary object
Setler [38]

I would say that you're describing an impossible situation.
If the object is stationary, then it has no movement.
If the object has movement, then it's not stationary.

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4 years ago
In the chemical reactions of chemosynthesis, microscopic organisms use heat and inorganic compounds to produce food for themselv
zhuklara [117]

D. endothermic

Explanation:

Since the chemosynthesis reaction uses up heat and other inorganic compounds to produce food for themselves, the process is endothermic.

  • In an endothermic reaction, heat is absorbed from the surrounding.
  • The surround will then become colder at the end of the reaction.
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learn more:

Enthalpy changes brainly.com/question/10567109

#learnwithBrainly

7 0
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