Answer:
D. Humidity refers to the amount of water vapor in the air
We might kill too many animals and mess up the food chain because some bigger fish won't be able to eat smaller fish and some smaller fish might not have any organisms to eat.
Answer:
constructive interference
Explanation:
waves come together so that they are in phase with each other
Answer:
it will take 36.12 ms to reduce the capacitor's charge to 10 μC
Explanation:
Qi= C×V
then:
Vi = Q/C = 30μ/20μ = 1.5 volts
and:
Vf = Q/C = 10μ/20μ = 0.5 volts
then:
v = v₀e^(–t/τ)
v₀ is the initial voltage on the cap
v is the voltage after time t
R is resistance in ohms,
C is capacitance in farads
t is time in seconds
RC = τ = time constant
τ = 20µ x 1.5k = 30 ms
v = v₀e^(t/τ)
0.5 = 1.5e^(t/30ms)
e^(t/30ms) = 10/3
t/30ms = 1.20397
t = (30ms)(1.20397) = 36.12 ms
Therefore, it will take 36.12 ms to reduce the capacitor's charge to 10 μC.
Answer:
6.28 m
Explanation:
The hub or centre of wheel will move a distance equal to the circumference
of the wheel .
Circumference of the wheel
= 2π R
R radius of the wheel is given as 1 m
So circumference
= 2 X 3.14 X 1 = 6.28 m
Hub will cover a distance of 6.28 m
