Alex tested a substance that has a pH of 2. Which of the following could alex have tested? A) base B) salt C) water D) acid

Dimensional analysis can be used to check equation validity because each unit can be treated as an algebraic quantity to verify that the answer has the correct units.

Why would a positive current flow from the positive end of a wire towards its negative end?

What is the main wiring plan for houses to ensure that each receptacle and light socket is the same voltage?

The table shows information about the moons of Mars. Moon Orbital Period (days) Average Distance from Mars (km) Phobos 0.319 9378 Deimos? 23,459 What is the orbital period of Deimos? A. 0.0806 days B. 0.798 days C. 1.26 days D. 1.59 days

Object A is negatively charged. Object A and Object B repel. Object B and Object C attract. Object C and Object D repel. What type of charge does Object B, Object C, and Object D possess?

Which statement about human behavior would john B. Watson support

What action happens if the moon spins on its axis like a top

A teacher has asked four students to state a scientific theory. Which student is correct?

36 of 50 Constants A 89.0-kg refrigerator sits on the floor. The coefficient of static friction between the refrigerator and the floor is 0.60. What is the minimum force that one needs to exert on the refrigerator to start the refrigerator sliding?

Does high pressure rise and low pressure sink