During refraction, what happens to a wave when it travels from one medium to another?
the wave travels in the opposite direction.
the wave changes speed.
the wave moves in the same direction.
the wavelength increases.

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?