An astronaut weighs 626 newtons at Earth's surface. If he were to cut his distance from Earth's center in half, what would be his new weight, to the nearest newton?

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this

Acharged particle moves in a circular path in a uniform magnetic field.which of the following would increase the period of the particle's motion? check all that apply.increasing its chargeincreasing its massincreasing the field strengthincreasing its speed