Answer:
D. Meters/Seconds
Explanation:
The time period of a wave is measured in seconds.
A typical wave involves both time and distance. Consider a sound wave, which is basically a periodic modulation of the local air pressure. We "hear" the sound because our ears respond to the variations of pressure.
The most common metric of a sound wave is frequency. This is the rate at which the change in pressure occurs, and is measured in cycles per second, formally known as "hertz". The period is the inverse of frequency andl has the units of seconds per cycle, commonly stated simply as seconds.
Answer:
Its called the hydrosphere UwU!
Explanation:
In the direction the force is directed towards. If the boy kicks the ball to the right, the ball will roll to the right.
This is a diagram from above, the air resistance is oppose to movement, the bird is moving forward given its force is bigger.
