You have equal amounts of two solutions. Solution A has a pH of 3. Solution B has a pH of 5. How many more H+ ions does one solution have than the other? (1 point) Solution A has 100 times as many H+ ions as Solution B
Solution A has 10 times as many H+ ions as Solution B.
Solution B has 10 times as many H+ ions as solution A.
Solution B has 100 times as many H+ ions as solution A.

In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.

Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve