Which of these is a chemical property of aluminum? Aluminum has a density of 2.70 g · cm−3 Aluminum is silvery white in color. Aluminum is highly reactive. Aluminum is a soft metal.

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?