The period of a pendulum is given by
![T=2 \pi \sqrt{ \frac{l}{g} }](https://tex.z-dn.net/?f=T%3D2%20%5Cpi%20%20%5Csqrt%7B%20%5Cfrac%7Bl%7D%7Bg%7D%20%7D%20)
since Karachi is near sea level, g is larger than it is on Mt. Everest. That means the pendulum will have a larger period on Mt. Everest than it would in Karachi.
It is the acceleration of an object in free fall
Explanation:
When an object is in free fall, it is subjected only to one force: the force of gravity, which pulls the object downward, with a magnitude (near the Earth's surface) which is given by
![F=mg](https://tex.z-dn.net/?f=F%3Dmg)
where
m is the mass of the object
is the acceleration due to gravity
We can apply Newton's second law to the object in free fall:
![F=ma](https://tex.z-dn.net/?f=F%3Dma)
where
F is the net force on the object
a is the acceleration of the object
m is the mass
However, since there is only the force of gravity acting on the object, the net force is equal to the force of gravity: so we can equate the two equations, obtaining that
![mg = ma\\\rightarrow a = g](https://tex.z-dn.net/?f=mg%20%3D%20ma%5C%5C%5Crightarrow%20a%20%3D%20g)
Which means that the acceleration of an object in free fall (acted upon the force of gravity only) is equal to the acceleration due to gravity,
.
Learn more about gravity:
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Answer:
40 cm
Explanation:
We are given that
Load=800 N
Effort=200 N
Load distance=10 cm
We have to find the effort distance.
We know that
![load\times load\;distance=Effort\times effort\;distance](https://tex.z-dn.net/?f=load%5Ctimes%20load%5C%3Bdistance%3DEffort%5Ctimes%20effort%5C%3Bdistance)
Using the formula
![800\times 10=200\times effort\;distance](https://tex.z-dn.net/?f=800%5Ctimes%2010%3D200%5Ctimes%20effort%5C%3Bdistance)
Effort distance=![\frac{800\times 10}{200}](https://tex.z-dn.net/?f=%5Cfrac%7B800%5Ctimes%2010%7D%7B200%7D)
Effort distance=![\frac{8000}{200}](https://tex.z-dn.net/?f=%5Cfrac%7B8000%7D%7B200%7D)
Effort distance=40 cm
Hence, the effort distance will be 40 cm.
B: CaO
Because Calcium is a Metal and Oxygen is a Non-Metal. Ionic bonds are only formed with a Metal and a Non-Metal element.