Sound in air can best be described as which type of wave?

Why are pots and pans made of metals like steel and their handles made of plastic?

Strictly speaking, as more and more skyscrapers are built on the surface of the Earth, does the day tend to become longer or shorter? And strictly speaking, does the falling of autumn leaves tend to lengthen or shorten the 24-hour day?

How many amps of current are there in a system with 12 volts and 6 ohms? A. 0.5 amps B. 2 amps C. 18 amps D. 72 amps

According to the principle of reflection, when an incident light wave strikes a reflective surface at an angle of 30 degrees, at what angle will it reflect off the surface?

Kara is writing a science-fiction story. In the story, Earth no longer experiences day and night. To return Earth to normal, which action should the heroine of the story take? A. She should get the Sun to travel around Earth again. B.

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.

Is Li greater than He on the periodic table?

White light falls on a yellow filter, if: (a) A green filter is placed behind a yellow filter, what is the colour of the light that will emerge from the green filter?

Calculate the energy equivalent in joules of the mass of a proton. [Show all work, including the equation and substitution with units.]

If the weight is 950 newtons, what is the mass?