What property do all three of these common household substances have in common? A) They are all acidic.
B) They all taste sour.
C) They all have a pH above 7.
D) They all turn litmus paper red.

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot