Which element is not represented in the star spectrum below? Hydrogen Helium Calcium Magnesium

How much force is needed to accelerate a 1000Kg car at a rate of 3m/s2?

Place where warm air rises and pushes down on the earths surface with less pressure

A uniform ladder 15 ft long is leaning against a frictionless wall at an angle of 53 above the horizontal. the weight of the ladder is 30 pounds. a 75-lb boy climbs 6.0-ft up the ladder.

Which of the following is the term used to describe a body's resistance to a change in motion? A. Inertia B. Acceleration C. Gravity D. Mass

List the colors of visible light in order of decreasing frequency physics

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, while that of the vacuum cleaner is 5.7 A. Determine the power consumed by (a) the blow-dryer and (b) the vacuum cleaner.