Answer:
I =1.8 kgm^2
Explanation:
In order to calculate the moment of inertia of the door you use the following formula, which relates the torque applied to the door with its moment of inertia and angular acceleration:
(1)
τ: torque applied to the door
I: moment of inertia of the door
α: angular acceleration = 5 rad/s^2
The torque is also given by τ = Fd, where F is the force applied at a distance of d to the pivot of the door (hinge axis).
F = 10 N
d = 0.9 m
You replace the expression for τ, and solve for I:
![Fd=I\alpha\\\\I=\frac{Fd}{\alpha}\\\\I=\frac{(10N)(0.9m)}{5rad/s^2}=1.8kgm^2](https://tex.z-dn.net/?f=Fd%3DI%5Calpha%5C%5C%5C%5CI%3D%5Cfrac%7BFd%7D%7B%5Calpha%7D%5C%5C%5C%5CI%3D%5Cfrac%7B%2810N%29%280.9m%29%7D%7B5rad%2Fs%5E2%7D%3D1.8kgm%5E2)
The moment of inertia of the door is 1.8 kgm^2
Flase plant cells and animals cells have almost the same major parts but some parts are different or in different places
Answer: Only Tech B is correct.
Explanation:
First, tech A is wrong.
The circuits that can be compared with links in a chain are the series circuit, and it can be related to the links in a chain because if one of the elements breaks, the current can not flow furthermore (because the elements in the circuit are connected in series) while in a parallel circuit if one of the branches breaks, the current still can flow by other branches.
Also in a parallel circuit, the sum of the currents of each path is equal to the current that comes from the source, so Tech B is correct, the total current is equal to the sum of the currents flowing in each branch of the circuit.
Answer:
Option B
Explanation:
Kinetic Energy is the energy possessed by the body due to <u>"motion"</u>.