outer space is a vacuum this means that there is nothing they're not even here if the engine of a spacecraft is outer space you switch off the spacecraft will move on going on any change in speed explain why​

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Explain what happens at the saturation point when adding salt to water at room temperature.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false