A narrow region between two air masses of different densities is a

a. ridge.

b. system.

c. gulley.

d. front.

A car travels 10 miles East in 30 minutes. What is its velocity in miles per hour?

What causes a tsunami to grow taller as it reaches the shore?

Using kepler's 3rd law and newton's law of universal gravitation, find the period of revolution p of the planet as it moves around the sun. assume that the mass of the planet is much smaller than the mass of the sun.

Which type of heat transfer occurs through electromagnetic waves? A. insulation B. conduction C. radiation D. convection

Why don't metals break when hit with hammer

1500 kg car increases its speed by 2 m/s for each second of travel. What is the net force acting on the car?

Why is it important for DNA to be copied before cell division?

In the water cycle, water vapor evaporates into the atmosphere and forms clouds through condensation. What happens in the atmosphere to the water in order for the clouds to form? A) Water drops mix with air pollution to form clouds.

you walk into your room and and turn on the light however the light doesn't turn on use 4 step problem

Determine the magnitude of force F so that the resultant FR of the three forces is as small as possible.