The illusion of water on top of hot asphalt on a summer day is:

A. diffusion.

B. a mirage.

C. an incident ray.

D. All of the choices are correct.

Which substances make up the liquid mantle of uranus? a. ice and rock b. ammonia and helium c. water, ammonia, and methane d. hydrogen, helium, and ammonia

How to determine how hot or cold a star is?

in the absences of friction, gravity, and all other external forces, what kind of speed will an object display if it's travel from the bottom to the top of an inclined plane

4. What happens to the composition of an atom to cause it to become positively or negatively charged?

Use Newton's second law of motion to solve the following problems. ron bicycles forward with an acceleration of 2.1 m/s^2 if he is applying a forward force of 195N, what is his mass

IF you are skateboarding and push back with one leg, and, as a result the skateboard moves forward. Which law of motion is being described

Explain why astronomers long ago believed that space must be filled with some kind of substance (the "aether") instead of the vacuum we know it is today.

Which of the following is an example of the electrostatic force acting in an atom? A. An electron repelling a proton B. A proton repelling another proton C. A neutron repelling an electron D. A neutron repelling another neutron

What are the correct units for energy and work

At the instant a current of 0.40 A is flowing through a coil of wire, the energy stored in its magnetic field is 9.5 ✕ 10-3 J. What is the self-inductance of the coil (in H) ?