Answer:
The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems.
Explanation:
A pure substance that cannot be decomposed by ordinary chemical change. . Energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means.
Answer:
F = 0.179 N
Explanation:
given,
length of the rod = 0.759 m
mass of the rod = 1.03 kg
force = ?
initial angular speed = 0 rad/s
final angular speed = 6.87 rad/s
time interval = 9.95 s
the angular acceleration
moment inertial of the rod
torque produced by the rod τ = I α
torque is also equal to τ = F L
now,
F L = I α
F = 0.179 N
The trick here is that there are two variables, Diameter of the coil and number of turns in it. So, in order to solve it, we will need two equations in D and N
Since we are making coil, formula for magnetic field will be B = μₒni/D
D = μₒni/B = 4π x 10^(-7) x (N) x (2.2) / (1.6)x10^(-3) = 1.7 x 10^(-3) x N = D
Another equation will be from the wire's length.
Total length = Circumference of one loop x No. of turns = πD x N = 2.2
We will eliminate N because we need D.
N = 2.2 / πD
Substitute in 1st equation.
1.7 x 10^(-3) x 2.2 / π = D^2
<span>
D = 0.034 m = 3.4 cm </span>
Answer:
0.3625
Explanation:
From the given information:
Consider the equilibrium conditions;
On the ladder, net torque= 0
Thus,
; and
However, by rearrangement;
![\mu= \dfrac{ (323 \ N) ( 10.8 \ m) \ cos 56^0 + (734 \ N) (7.46 \ m) \ cos \ 66.46^0}{\Big [(323 \ N)+(734 \ N) \Big] (10.8 \ m)}](https://tex.z-dn.net/?f=%5Cmu%3D%20%5Cdfrac%7B%20%28323%20%20%5C%20N%29%20%28%2010.8%20%5C%20m%29%20%5C%20cos%2056%5E0%20%2B%20%28734%20%5C%20N%29%20%287.46%20%5C%20m%29%20%5C%20cos%20%20%5C%20%2066.46%5E0%7D%7B%5CBig%20%5B%28323%20%5C%20N%29%2B%28734%20%5C%20N%29%20%5CBig%5D%20%2810.8%20%5C%20m%29%7D)
