This makes frequency lower as well as the pitch we hear.
Answer:
Some examples of levers include more than one class, such as a nut cracker, a stapler, nail clippers, ice tongs and tweezers. Other levers, called single class levers include the claw end of a hammer.
Explanation:
Answer:
Explanation:
I ASSUME you mean acceleration is 3 m/s²
v² = u² + 2as
s = (v² - u²) / 2a
s = (18² - 12²) / (2(3))
s = 30 m
to verify we can see that the acceleration time is
t = (18 - 12) / 3 = 2 s
s = 0 + 12(2) + ½(3)2² = 30 m
B. False. beause warm air rises up in the air so first of all there is
no warm air near the ground and second of all higher the temperature
higher will be the collision of molecules so sound will travel a bit
slower than lower temperature
C. is the answer to this question