Ted walked 2.0 m west, 3.0 m west, and then 4.0 m east. what is the vector sum of his displacements, shown below?

Which one of the following is not a common acid? A. Baking soda B. Vinegar C. Aspirin D. Antiseptic

What can happen when two plates bordering each other suddenly move and release energy a. Earths crust shakes b. Lava erupts c. a trench is formed d. Mountains are created

A 50g ball rolls across a table at 2 m/s. a 100g ball rolls across the same table at 1 m/s

What is the dimension of momentum

A physical property of gold is its

The monochromatic light diffracts on the two slits which are 0.1 mm apart (their size is negligible) and produces an interference pattern on the wall which is 3 m far from the apparatus.

Which of the following statement is true regarding the study of human development?

Which type of power plant uses energy directly from the sun to generate electricity? A. Wind B. Hydroelectric C. Radiant D. Coal

What is a scientific law? an explanation that clarifies scientific observations a hypothesis that proposes an answer to a question a statement that summarizes a pattern found in nature an observation that explains a hypothesis

If the frequency of an electromagnetic wave is increased, what happens to the energy?