Which statements about surface gravity are true? Select all that apply.
a. Earth's surface gravity has no effect on the tides.
b. A 180-pound person on Earth weighs 30 pounds on the moon.
c. A space ship has the same mass on Earth as it has on the moon.

(1 point) match the differential equations and their vector valued function solutions. you may wish to multiply at least one solution out fully, to make sure that you know how to do it. you can get the other answers quickly by process of elimination and just multiply out one row element.

What was the first instrument to ever record an earthquake?

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation