Answer:
In order to make a sound wave have a higher pitch you increase the frequency.
In order to increase the volume of a sound wave, you have to increase the amplitude.
Hope this helps!
Evidence of a chemical change includes
change in color
Answer:
Direct.
Explanation:
There is direct relationship between distance and time. Direct relation means if one increases the other automatically increases while on the other hand, if one decreases the other will also decreases. If there is a large amount of distance so more time is required to pass it while on the other hand, if there is less distance so less time is required to complete it so we can conclude that there is direct relationship between distance and time.
Answer:
0.2 Hz
Explanation:
f= 1/T where f= frequency and T=period
f= 1/5 sec
=0.2 Hz
Answer:
(3) 4.62 ohms
Explanation:
Te equivalent resistance R is gotten from
1/R = 1/R₁ + 1/R₂ + 1/R₃ where R₁ = 10.0 ohm, R₂ = 15.0 ohm and R₃ = 20.0 ohm
1/R = 1/10 + 1/15 + 1/20
1/R = 0.1 + 0.0667 + 0.05
1/R = 0.2167
R = 1/0.2167
R = 4.62 ohms