Select all that apply. Which of the following are elements? O2 Ca KF B

The atomic number of an atom is defined as which of the following? A) number of protons B) mass in grams C) Mass in amu D) number of electrons

A force acts upon an object causing displacement of the object is the definition of?

An audio speaker producing a steady sound at an outdoor concert is 24 ft away from you. If you move to a position where the speaker is 85 ft distant, by what factor will the amplitude of the sound change

The electric and magnetic fields that make up an electromagnetic wave occur are at right angles to each other. True False

Heat will flow from a hot object to a cold object until the objects reach

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