Answer:
114.19186 m
Explanation:
v = Velocity of girl at bottom = 7.1 m/s
= Coefficient of kinetic friction = 0.045
g = Acceleration due to gravity = 9.81 m/s²
d = Distance
N = Normal force = 783 N
The weight of the sled and girl is considered as the sum of the frictional force and weight
Hence we use the following equation where the kinetic energy and potential energy are conserved
![\frac{1}{2}mv^2=\mu Nd\\\Rightarrow \frac{1}{2}\frac{783}{9.81}\times 7.1^2=0.045\times 783\times d\\\Rightarrow d=\frac{1}{2}\times \frac{783\times 7.1^2}{9.81\times 0.045\times 783}\\\Rightarrow d=114.19186\ m](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dmv%5E2%3D%5Cmu%20Nd%5C%5C%5CRightarrow%20%5Cfrac%7B1%7D%7B2%7D%5Cfrac%7B783%7D%7B9.81%7D%5Ctimes%207.1%5E2%3D0.045%5Ctimes%20783%5Ctimes%20d%5C%5C%5CRightarrow%20d%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20%5Cfrac%7B783%5Ctimes%207.1%5E2%7D%7B9.81%5Ctimes%200.045%5Ctimes%20783%7D%5C%5C%5CRightarrow%20d%3D114.19186%5C%20m)
The sled travels 114.19186 m on the level ground before coming to a rest
The main cause of weather is uneven heating of the earth's surface.
There are various factors that contribute to weather, however the main factor is the uneven heating of the earths surface. This creates temperature differences and can cause water to evaporate and condense. This, combined with earth's spin lead to large scale weather systems and wind currents. These in turn are influenced by land forms, bodies of water, and even vegetation.
Answer:
Explanation:
y = 16 sinπx/15 cos(96πt)
When t = 0
y = 16 sinπx/15
here πx/15 is phase of the point at x
if x = 13
Phase = 13π/15
if x = 16
Phase = 16π/15
Phase difference
= 16π/15 - 13π/15
= 3π/15
= π/5 radian .
Answer:
yes
Explanation:
yes, because lets say you were a surgeon you would have sharp tools floating everywhere