What forms when air masses with different temperatures meet?

An object falls from a high building and hits the ground in 9.0 seconds. ignoring air resistance, what is the distance that it fell?

A fireman is sliding down a fire pole. as he speeds up, he tightens his grip on the pole, thus increasing the vertical frictional force that the pole exerts on the fireman. when the force on his hands equals his weight, what happens to the fireman?

You see the moon on the meridian at sunrise. The phase of the moon is

A 1700kg rhino charges at a speed of 50.0km/h. What is the magnitude of the average force needed to bring the rhino to a stop in 0.50s?

The angle between an incident light ray and a plane mirror is 50 degrees. What is the angle of incidence? And what is the total angle turned by the light ray?

An insoluble solid material that is produced in double replacement reactions is called

A basketball player drops a 0.60-kg basketball vertically so that it is traveling at 6.3 m/s when it reaches the floor. The ball rebounds upward at a speed of 5.3 m/s.

Describe how humans' actions and natural processes have modified coastal regions in Louisiana and other locations

Visualize five horizontal sedimentary strata exposed in a cliff or canyon wall identified by consecutive numbers, 1 being the lowest bed and 5 being the highest. Which of the following statements concerning the strata are true? a.

The characteristics that follow are characteristics of two of Galileo's surviving double-convex lenses. The numbers given are magnitudes only; you must supply the correct signs. L 1: front radius 950 mm, rear radius 2700 mm, refractive index 1.