Why is it better to get you car moving on slipper snow by going easy on the gas pedal, rather than trying to get going full force?

When an object is heated it contracts. a. true b. false

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.