Which statement best describes a wave?

a. a collision of particles

b. a disturbance that carries energy

c. a movement of fluids

d. a group of electrically charged molecules

the weatherman reports the storm waves are about 2 meters high and 35 meters apart. What properties of waves is the reporter describing?

Calculate the number of joules of kinetic energy of a 9-kg dog running at a speed of 6 m/s.

Which of the following statements about the measurement of electrical quantities is correct? A. Electrical pressure is measured in units called watts. B. Resistance is measured in units called ohms. C. Current is measured in units called volts. D.

What is the relationship between mass, weight, and gravity?

A 0.07-kg lead bullet traveling 258 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs, what is its temperature change?

Which is an example of velocity? a. 5 meters per second northeast b. 25 kilometers c. 15 miles per hour

If a car is traveling at a velocity of + 10m/s suddenly turns around and continues at the same speed, what is its new velocity?

When demand for electric power is high, power company sometimes reduced the voltage, thereby producing a "brown-out." What is being saved?

Secondary evidence is the basis for drawing scientific conclusions is this true ir false

A stone tumbles into a mine shaft and strikes bottom after falling 4.2 seconds. How deep is the mine shaft?