Which of the following is an example of an electromagnetic wave?

A. sunlight

B. an earthquake

C. the sound of kids playing

D. butterflies flying through the air

Magnesium is a highly flammable element which is easily combustible in the presence of oxygen: 2Mg + O2 - ->? + heat How many atoms would you expect to find on the product side of this equation?

A cube, 1 m on each edge, is held 0.75 m below the surface of a pool of water by a rope. The mass of the cube is 700 kg, and the weight distribution is such that one face remains parallel to the surface of the water. a. Find the tension in the rope.

Which term describes the region in which an electron is most likely to be found? path cloud isotope orbital

When lost fluid is not replaced adequately can result

Current events and overexposure of sun

A box with a mass of 100.0 kg slides down a ramp with a 50 degree angle. What is the weight of the box? N What is the value of the normal force? Round the answer to the nearest whole number.

How does thermal energy heat a house? What devices and systems are involved?

A skater with an initial speed of 7.68 m/s stops propelling himself and begins to coast across the ice, eventually coming to rest. Air resistance is negligible. (a) The coefficient of kinetic friction between the ice and the skate blades is 0.105.

A. A PH202 student lives next to a construction site and sees a crane with a wrecking ball demolish the building next door. The wrecking ball swings along the wall between her house and the neighbor's house.

Sometimes when you are training for event you may notice a decrease in improvement in level out of performance true or false