Answer:
a=0 v = v₀ + a t
a=0 line is horizontal
Explanation:
1, In a graph of acceleration vs. time, we have lines, when the line is horizontal it is zero, when the line has a positive slope the increasing accelerations and when the slope is negative the decreasing acceleration
2, speed and relationship of a car is given by
v = v₀ + a t
where vo is the initial velocity, a is the acceleration and tel time
in this case I will calcograph velocity vs. time the constant acceleration is a straight line.
In general from the graph we can find the initial velocity with the cut at that x and the acceleration of the car with the slope
Answer:
Xc= 17.267 Ω, Z= 415.5 Ω, I= 0.537 A
Explanation:
Em = 223 V
f= 300 Hz, R = 222 Ω, L = 147 mH, C = 23.1 μF
a)
Capacitive reactance = Xc=?
Xc= ![\frac{1}{2\pi fC}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%5Cpi%20fC%7D)
Xc=1/2pi *399*23.1*10^-6
Xc= 17.267 Ω
b).
Z=![\sqrt{ R^2 + (Xl - Xc)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%20R%5E2%20%2B%20%28Xl%20-%20Xc%29%5E2%7D)
Xl= 2π * f * L
Xl= 2π * 399 * 147 * ![10^{-3}](https://tex.z-dn.net/?f=10%5E%7B-3%7D)
Xl= 368.5 Ω
Z=
= ![\sqrt{222^2 + (368.5 - 17.267)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B222%5E2%20%2B%20%28368.5%20-%2017.267%29%5E2%7D)
Z= 415.5 Ω
c).
Current:
I= V / Z= Em / Z
I= 223/415.5
I= 0.537 A
Answer:
Friction is a force that opposes motion.
Answer:
It is green. Aside from being renewable, tidal energy is also an environmentally friendly energy source because it does not take up a lot of space and does not emit any greenhouse gases.
Explanation: