A string exerts a force of 20 N on a box at an angle of 38° from the horizontal. What is the horizontal component of the force on the box?

What happens in a global convection cell

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.