At what altitude from the surface of the earth will the gravitational field strength be reduced by 10%. The mass of the earth are 6 ×10²⁴ kg. Radius of the earth = 6.4 ×10⁶ m. Gravitational acceleration, a=9.81ms-²

What kind of simple machine is a catapult?

The ph is the a.independent variable b.the dependent variable c.control group

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.