Answer:
Increase 9 times
Explanation:
We have Newton formula for attraction force between 2 objects with mass and a distance between them:
![F_G = G\frac{M_1M_2}{R^2}](https://tex.z-dn.net/?f=F_G%20%3D%20G%5Cfrac%7BM_1M_2%7D%7BR%5E2%7D)
where
is the gravitational constant.
is the masses of the 2 objects. and R is the distance between them.
Since the force is inversely proportional to the distance squared, if it is reduced by 3 times, the gravitational force between them would increase by
times
Explanation :
It is given that,
Mass of the car, m = 1000 kg
Force applied by the motor, ![F_A=1000\ N](https://tex.z-dn.net/?f=F_A%3D1000%5C%20N)
The static and dynamic friction coefficient is, ![\mu=0.5](https://tex.z-dn.net/?f=%5Cmu%3D0.5)
Let a is the acceleration of the car. Since, the car is in motion, the coefficient of sliding friction can be used. At equilibrium,
![F_A-\mu mg=ma](https://tex.z-dn.net/?f=F_A-%5Cmu%20mg%3Dma)
![\dfrac{F_A-\mu mg}{m}=a](https://tex.z-dn.net/?f=%5Cdfrac%7BF_A-%5Cmu%20mg%7D%7Bm%7D%3Da)
![a=\dfrac{1000-0.5(1000)(9.81)}{1000}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7B1000-0.5%281000%29%289.81%29%7D%7B1000%7D)
![a=-3.905\ m/s^2](https://tex.z-dn.net/?f=a%3D-3.905%5C%20m%2Fs%5E2)
So, the acceleration of the car is
. Hence, this is the required solution.
Freeze wedging<span> is caused by the repeated freeze-thaw. </span>Frost wedging<span> occurs as the result of 9 % expansion of water when it is converted to ice. Cracks filled with water are forced further apart when it freezes. cycle.</span>
Volume=mass/density
volume=455.6/19.3
volume=23.6 mL
Answer:
A shorter than the original source and in the researcher's words
Explanation:
The summary is an abridged version of the original source and in the researcher's own very words.
Summaries gives an over-arching perspective and excludes implicit details from a given text.
A summary should not be detailed and must avoid overt illustrations. They must capture the true essence of piece leaving out flowery details.
A summary should be lesser in length than the original piece. Any third party reader should immediately be able to grab the details of the original piece from the summary.