The picture shows it has a real life something to display conservation of energy with kinetic energy and potential energy.
Five sentences are for potential and kinetic energy. Potential energy is to energy an object when it stores. Kinetic energy is something to motion. When the potential energy is slows down the potential energy it might be increases. As from the object when the speeds up and it is decreases to potential energy.
Kinetic energy is to calculated by KE= mass×velocity²/2 as a fraction.
Potential energy is to calculated by PE= mass×g×height.
And the another picture it has a <span>energy, kinetic energy, mechanical energy, conservation of energy.
</span>
Yes light travels at 3.00
Answer:it is b i just did this
Explanation:
Explanation:
Examples for effect of force - example
1) Can change the state of an object(rest to motion/ motion to rest):For example, pushing a heavy stone in order to move it. 2) May change the speed of an object if it is already moving. ... 3) May change the direction of motion of an object.
Answer:
14778.29 N
Explanation:
Diameter, d=10.1mm= ![10.1*10^{-3}m](https://tex.z-dn.net/?f=10.1%2A10%5E%7B-3%7Dm)
Since stress,
where F is force, A is area and since specimen is cylindrical,
A=
Therefore, ![\sigma= \frac {F}{\pi*(0.5d)^{2}}](https://tex.z-dn.net/?f=%5Csigma%3D%20%5Cfrac%20%7BF%7D%7B%5Cpi%2A%280.5d%29%5E%7B2%7D%7D)
Also strain
where L is length
Poison’s ratio,v is the ratio of lateral strain to longitudinal strain hence
V= ![-\frac {\epsilon_{x}}{\epsilon_{z}}= \frac {\triangle dl_{o}}{d \triangle l}](https://tex.z-dn.net/?f=-%5Cfrac%20%7B%5Cepsilon_%7Bx%7D%7D%7B%5Cepsilon_%7Bz%7D%7D%3D%20%5Cfrac%20%7B%5Ctriangle%20dl_%7Bo%7D%7D%7Bd%20%5Ctriangle%20l%7D)
From Hooke’s law, ![\sigma=E \epsilon_{z}](https://tex.z-dn.net/?f=%5Csigma%3DE%20%5Cepsilon_%7Bz%7D)
Conclusively, ![E* \epsilon_{z}=E* \frac {- \epsilon_{x}}{v}=\frac {F}{\pi*(0.5d)^{2}}](https://tex.z-dn.net/?f=E%2A%20%5Cepsilon_%7Bz%7D%3DE%2A%20%5Cfrac%20%7B-%20%5Cepsilon_%7Bx%7D%7D%7Bv%7D%3D%5Cfrac%20%7BF%7D%7B%5Cpi%2A%280.5d%29%5E%7B2%7D%7D)
![\frac {4F}{ \pi *d^{2}}=- \frac {E \triangle d}{vd}](https://tex.z-dn.net/?f=%5Cfrac%20%7B4F%7D%7B%20%5Cpi%20%2Ad%5E%7B2%7D%7D%3D-%20%5Cfrac%20%7BE%20%5Ctriangle%20d%7D%7Bvd%7D)
F=![- \frac {\pi *Ed \triangle d}{4v}](https://tex.z-dn.net/?f=-%20%5Cfrac%20%7B%5Cpi%20%2AEd%20%5Ctriangle%20d%7D%7B4v%7D)
F=
= 14778.29N
Therefore, required force F is 14778.29 N