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Crash sensors measure how quickly a vehicle slows down in a frontal crash or accelerates to the side in a crash Some vehicles are equipped with a sensing system designed to detect the onset of a rollover crash Rollover crash sensors may be located in the ecu or at the center of the vehicle

The the Crash trip sensors in cars that send an electric signal to an ignitor The heat generated causes sodium azide to decompose into sodium and nitrogen gas which inflates the airbags

Explanation:

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2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

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conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.