The sun's rotation is unlike earth's and has different periods of rotation at different parts of its body. this is called differential rotation.
true
false

Heat from the sun reaches earth to a. radiation b. convection c. conduction

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?