Answer:
they are all living things in an ecosystem
Explanation:
Hope this helps - Good luck ^w
You would observe an absorption line spectrum.
Answer:
F = 0.0545 N
Explanation:
Let's use Newton's second law for rotational movement
τ = I α
The moment of inertia for a bar supported by some ends is
I = 1/3 m L²
Torque is
τ = F L
Let's replace
F L = 1/3 m L² α
F = 1/3 m L α
Let's reduce angular acceleration to SI units
Alf = 26º / s² (π rad / 180º) = 0.454 rad / s²
Let's calculate
F = 1/3 0.5 0.72 0.454
F = 0.0545 N
Answer:
t = 22.2 s
Explanation:
angular distance covered in the 36.0 s is
θ = ω(avg)t = ½(10.0 + 30.0)36 = 720 radians
720/2 = 360 radians
α = Δω/t = (30 - 10)/36 = 5/9 rad/s²
θ = ω₀t + ½αt²
360 = 10.0t + ½(5/9)t²
0 = (5/18)t² + 10.0t - 360
0 = t² + 36t - 1296
t = (-36 ±√(36² - 4(1)(-1296))) / 2
t = (-36 ±√(6480)) / 2
t = -18 ±√1620
we ignore the negative time result as it occurs before we care.
t = -18 + √1620 = 22.249223... s
The average speed would be 0.65 m/s, therefore the correct option is (A).
The average speed is calculated by the formula
Average speed= (total distance/ total time)
The total distance of the trip=9.5+3.5+15=28 m
The total time of trip=43 sec
Therefore the average speed=28/43=0.65 m/s.
