Answer:
the speed of the cheetah at the end of the 3 seconds is: 19.5 m/s
Explanation:
Let's use the equation that relates speed with acceleration:
vf = vi + a * t
where vf stands for final velocity, vi stands for initial velocity, a for acceleration, and t for the time acceleration is applied. Then, in our case we have:
vf = 0 + 6.5 (3)
vf = 19.5 m/s
Atoms move at different speeds because of different amounts of space between each other (lots of space in a liquid so they move faster then in a solid where there is almost no space)
Answer: 1.) The intensity of the sound wave which reaches the listener’s ear.
2.) The square of the amplitude of the sound wave.
3.) The mass of air which can be set into vibration.
Explanation:
It protects us by keeping ultraviolet out and make sure everything lives
