A scientist wants to test ways to reduce pollution in lake. What is the bestway of doing this

2. In the winter, weather reporters often day "It will be a very cold night because there are no clouds." a. Use the sim to see if you can understand why this could be true. b. Describe your observations. c.

Does the mass of an object depend on its size

When the absolute temperature of a gas doubles, the average kinetic energy of the gas particles is A. reduced by half. B. doubled. C. increased by half. D. left unchanged.

One type of bb gun uses a spring-driven plunger to blow the bb from its barrel. (a) calculate the force constant of its plunger's spring if you must compress it 0.150 m to drive the 0.0500-kg plunger to a top speed of 20.0 m/s.

The current in a 100-w bulb connected to a 120-v source is

Which of the following is the kinetic rate equation for the addition-elimination mechanism of nucleophilic aromatic substitution? rate = k[aryl halide] rate = k[nucleophile] rate = k[aryl halide][nucleophile] rate = k[aryl halide][nucleophile]2

What idea is the kinetic molecular theory based on?

What happens when ionic bonds are formed? Metal atoms lose electrons, and nonmetal atoms gain electrons. Metal and nonmetal atoms both lose electrons. Metal atoms gain electrons, and nonmetal atoms lose electrons.

Explain what centimeters, kilometers, and millimeters are.

Two bullets have masses of 3.1 g and 4.4 g, respectively. Each is fired with a speed of 42.0 m/s. a) What is the kinetic energy of the first bullet? Answer in units of Jb) What is the kinetic energy of the second bullet?