Answer:
19.3
Explanation:
Assuming we have to find Specific gravity of gold.
As we know that specific gravity is defined as the ratio of weight of the object and weight of the water displaced by the object
so it is given by
specific gravity = weight of the object/weight of the water displaced
now we have
weight of the object = (density)(volume)g
weight of object = (19.3)(0.55)g
now weight of the liquid displaced is given by
weight of water displaced = (1 g/cm^3)(0.55ml)g
now we have
specific gravity = (19.3×0.55)/(1×0.55)
specific gravity= 19.3
Answer:
The maximum height the pumpkin reaches occurs at 62.5 horizontal meters from its launching spot.
Explanation:
Notice that we are given the actual trajectory equation:
![y=-0.008 \, x^2+x](https://tex.z-dn.net/?f=y%3D-0.008%20%5C%2C%20x%5E2%2Bx)
which corresponds to a curve represented by a parabola.
We can find the maximum of this parabola with arms pointing down requesting the derivative (slope of the tangent line to the curve) to be zero :
![y'=-0.016\,x+1\\0=-0.016x+1\\x=\frac{1}{0.016} \\x=62.5\,\,m](https://tex.z-dn.net/?f=y%27%3D-0.016%5C%2Cx%2B1%5C%5C0%3D-0.016x%2B1%5C%5Cx%3D%5Cfrac%7B1%7D%7B0.016%7D%20%5C%5Cx%3D62.5%5C%2C%5C%2Cm)
Speed = distance / time
speed = (121-88) / 30
speed = 1.1 meters? per minute
This is what i found idk if its right or not so yeahhhhhh.
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