True or false : In crystalline solids the particles are not arranged in a regular pattern

A given mass of air has a volume of 6.00 L at 101 kPa. At constant temperature, the pressure is decreased to 25.0 kPa. Calculate the final volume for the gas.

How do elements change as you go down a group in the periodic table? A. The average atomic mass decreases. B. The atomic number increases. C. The atoms become more metallic. D. The number of valence electrons increases.

What will tightening the strings on a violin do? increase the pitch decrease the pitch have no effect on pitch

Jessica Jacob is driving down the road at 35 m/s. She sees a cop and slows to 20 m/s in only 2 seconds. What was her acceleration?

In general, if the temperature of a chemical reaction is increased, the reaction rateA. IncreasesB. decreasesC. remains the sameD. Cannot be predicted

Explain what force caused the continents to move from one super continent to there current form

A 5 kg ball approaches a wall at a speed of 4 m/s. It then bounces off the wall in the opposite direction at the same speed. What is the magnitude of the average force exerted on the ball if it is in contact with the wall for 0.1 s?

When a basketball player dribbles a ball, it falls to the floor and bounces up. Is a force required to make it bounce? Why? If a force is needed, what is the agent involved?

Compare the friction force on the cart when it is rolling along the blacktop parking lot to the friction force on the cart when it is inside the grocery store (assume the flooring is smooth vinyl tile).

Which of the following objects has the most kinetic energy? a car going 60 miles per hour a spring that is compressed a rock sitting on the edge of a cliff a bicycle going 10 miles per hour