C. 4,3! Panama is in a straight so it connects two masses.
d. All of the above options are the best way to test if your vehicle's spring brakes come on automatically.
Spring brakes aren't air implemented like carrier brakes. They apply while air pressure leaves the brake chamber and release when air pressure builds up in the chamber. Spring brakes use a distinctive form of brake chamber from carrier brakes.
The spring brakes will come on while the air strain drops into the range of 20 to forty-five psi. A closely loaded automobile will take a protracted distance to forestall because the spring brakes do not work on all axles.
Usually, spring brakes are used as a parking brakes. They can be observed at the rear axle of heavy vans. The spring brakes work like this: The stress is carried out to the spring facet, which lets in the parking brake disengage. while the spring is decompressed (at 20 lbs), parking brakes had been applied.
Learn more about spring brakes here: brainly.com/question/16254254
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Answer:
C
Explanation:
Dependent Variable: A dependent variable is what you measure in the experiment and what is affected during the experiment. ... It is called dependent because it "depends" on the independent variable. In a scientific experiment, you cannot have a dependent variable without an independent variable.
