Answer:
the rotational kinetic energy of the wheel is 1730J
Explanation:
Hello!
The concept of rotational kinetic energy refers to the amount of energy a body has when it is rotating, so it is crucial to know the moment of inertia and its speed of rotation, now we follow the next steps to solve
1. We find the moment of inertia of a hollow cylinder by the following equation
where
I= moment of inertia
m=mass=13kg
Re=external radius=0.34m
Ri=internal radius=0.29m
solving
N
ow we use the equation to find the kinetic energy of a rotating body
where
E= rotational kinetic energy
I= moment of inertia =0.2047kg . m^2
W=angular velocity=130 rad/s
Solving
the rotational kinetic energy of the wheel is 1730J
Explanation:
Efficiency is a way of describing the amount of useful output a process or machine can generate as a percentage of the input required to make it go. In other words, it compares how much energy is used to do work versus how much is lost or wasted to the environment. The more efficient the machine, the less energy wasted.
For example, if a heat engine is able to turn 75 percent of the fuel it receives into motion, while 25 percent is lost as heat in the process, it would be 75 percent efficient. Out of the original 100 percent of the fuel, 75 percent was output as useful work.
the equation:
energy efficiency =useful output energy/total input energy
Answer:
* positive repulsion, which makes the electrons move as far away as possible
* Attraction with the core atomizes
he analysis is the foundations of quantum theorizing
Explanation:
Electrons are deposited in an atom following two principles.
* positive repulsion, which makes the electrons move as far away as possible
* Attraction with the core atomizes
The mathematical model used for the analysis is the foundations of quantum theorizing
Answer:
True
Explanation:
This Question is a little tricky, so I am unsure if this s the most logical answer.
If you'd look at a compass, 60 degrees south is moreover south then east, and the two imaginary lines are unlikely to intercept.
Answer:
Explanation:
Given
Bianca is at
i.e. distance between origin and Bianca is
time taken to reach Bianca eyes is
i.e. Cracker exploded at because it is observed at
Time taken by second cracker flash to reach Bianca eyes
Therefore it will be observed at