Explain reflection and refraction

Convert 45,700 into scientific notation

Two stars, x and y, have the same temperature. star x is ten times more luminous than star y. which star has the larger radius

The diagram shows a pot sitting on a gas stove burner. Which shows the order in which thermal energy is transferred by conduction?

What effect would a barrier island have on the shoreline of the mainland?

Physicist S. A. Goudsmit devised a method for measuring the mass of heavy ions by timing their period of revolution in a known magnetic field. A singly charged ion makes 5.00 revolutions in a 50.0 mT field in 1.11 ms.

Which of the following best describes transverse waves

What are the arrangement of resistors in series

A pilot flies horizontally at 1300 km/h, at height h! 35 m above initially level ground. However, at time t! 0, the pilot begins to fly over ground sloping upward at angle u! 4.3° (Fig. 2-38).

A helicopter flies 30 km 30 degrees north of east, drops of the supplies to a research team; it then heads 50 degrees north of west traveling 70 km to drop the supplies to a filming crew. What is the resultant displacement of the helicopter?

Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below).