Which could be true about an unknown sample with a pH of 7?

Scientists compare the constant motion and cooperating, flowing rhythmic movement of particles to the idea of dance. Santhanam Nagarajan states "Physicists speak of the continuous dance of sub-atomic matter which goes on all the time.

17. Two masses, m1 and m2 are separated a distanced. What changes in the variables will result in no change in the gravitational force between the masses?. (More than one answer is correct) a. m1 is double and dis doubled. b.

If a boulder has a mass of 50 kg and a potential energy of 490 j what is the height of the boulder

Through what process does water leave the hydrosphere and enter the atmosphere

Select all that apply to electrons and energy levels. - Scientists have not yet determined exactly why electrons do not collapse into the nucleus. - Electrons cannot be located between levels except when they are in the process of moving.

Two students are looking at a brightly lit full Moon, illuminated by the reflected light from the Sun. Consider thefollowing discussion between the two students about what the spectrum of moonlight would look like.

When performing a battery load test, what should the load be set to?

If you push on a wall of a building what will happen

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.

A spring (k = 790 N/m) has a length of 48 cm when zero net force is applied to it. What will its length be when 230 N of force is applied to stretch it? Question 3 options: 3.4 m 0.77 m 3.9 m 0.29 m