2. bianca stands on top of a tall building. she drops a 3 kg rock from rest. ignoring air resistance, what will be the
velocity of the rock after 3 s?
a. -10 m/s
b. -30 m/s
-0.33 m/s
+10m/s

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

The energy produced as a result of this flow of electrons from atom to atom is called