What's a substance made up of two or more elements

d) To calculate air pressure, the volume occupied by air is assumed constant. Why is this incorrect? Explain how the vapor pressure calculated and the resulting Clausius-Claperon plot are affected?

An initially uncharged 3.47-μF capacitor and a 6.43-kΩ resistor are connected in series to a 1.50-V battery that has negligible internal resistance.

You can separate sand into many different substances by pouring it through a filter. What is sand?

What magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 4.5 * 107 m/s? Assume that the field is uniform inside the magnet, zero outside.

Spaceships A and B are traveling directly toward each other at a speed 0.5c relative to the Earth, and each has a headlight aimed toward the other ship.

Will is in an experiment in which he is asked to raise his hand every time he thinks he hears a tone. At a particular intensity level, Will accurately detects the tone 50% of the time. This is Wills

What is implicit memory?

A student places a cup of cold water on a counter in a warm room. The student measures the temperature of the water every minute until it stops changing. The water's final temperature is 28 degrees celsius. What is the final temperature of the room?

You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. Part A How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be 9.80 m/s^2.

At a soccer practice, the players run sprints. They start at the goal, run 10 m toward the center of the field and then run back to the goal. Then they run 20 m toward the center of the field and back to the goal.