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

some communities might be opposed to treating wastewater and converting it into drinking water.

In terms of newton first law of motion why is it important to wear a seat belt

If B is added to C, the result is a vector in the direction of the positive y-axis with a magnitude equal to that of If C = zi + yj, where x=6.13 and y=7.12 what is the magnitude of B?

Which of the following is a true statement with regard to climate change? a. Climate change takes place at a constant rate over time. b. Climate change takes place at an increasing rate over time. c.

You are playing croquet with some friends. Assume the mass of the mallet is 3m and the mass of the ball is m. The time of impact between the mallet and the ball is 1.00ms. You give your mallet head an initial velocity of 2.00 m/s. A.

Explain what happens to light when it is refracted at the surface of water.

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the momentum change during the collision is correct? (There could be more than one correct choice.

Consider the following distribution of objects: a 3.00-kg object with its center of gravity at (0, 0) m, a 4.20-kg object at (0, 6.00) m, and a 1.40-kg object at (1.00, 0) m. Where should a fourth object of mass 7.

A Volt/Amp Is Also Known As.?

What's the difference between mass & weight & how they are measured