Because the people in the car are attached to the vehicle, the people inside the vehicle are going the same speed as the vehicle.
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Answer:
A system of two co-axial cylindersof different diameters which rotate together is called wheel and axle example; the door knob , knob of the tap ,screw driver,water tap
The electromagnet is a device that requires conducting wires wrapped around the iron core.
For making an electromagnet, the most necessary item is a copper wire.
What is an Electromagnet?
An electromagnet is a device that has conducting wires wrapped around an iron core. When electricity is passed through the wires, a magnetic field is generated. The setup acts as a strong magnet.
In order to make an electromagnet, a current-carrying wire is needed to wrap around a magnetic material. The current-carrying wires will play the role of conducting wires and the conducting wires are necessary to make an electromagnet. These wires can be made of copper.
Thus, we can conclude that for making an electromagnet, the most necessary item is a copper wire.
Learn more about the electromagnet here:
brainly.com/question/10060657
Gas always expands or contracts to exactly fill whatever you put it in.
So to measure the volume of a gas, just measure the volume of the jar, the tank, the bottle, the can, or the balloon that the gas is in.
