Answer:
Opening a coffee shop can be extremely profitable if you do it right. ... If you are franchising or buying an existing business, the location is preselected, but ... is the hallmark of any successful business, especially in the food service industry. ... Having customers order and pay up front and calling them when their drinks and ...
Answer:
One reason is the positioning of the earth on its axis. The sun doesn't hit where we live in winter because we are pushed upwards more so we don't get the suns heat. The sun goes down earlier... so we don't have as much sunlight.
In winter the sun is father away from earth and in Summer it is closer...
Explanation:
Answer:
you could measure several properties of
the unknown liquid and compare them with the properties of known
substances. You might observe and measure such properties as color,
odor, texture, density, boiling point, and freezing point.
I included air resistance because the bike is moving kinda fast so it probably matters for your problem
Answer:
The height is 80 meters.
Explanation:
The equation for the distance in the second segment of the fall is as below. In it, we use the initial velocity v1 that the ball had after completing the first segment. From this equation, v1 can be determined:
![h_2 = \frac{1}{2}gt_2^2+v_1t_2=0.5\cdot 10\frac{m}{s^2}\cdot 4 s^2+v_1\cdot 2 s=60m\implies\\v_1 = 20\frac{m}{s}](https://tex.z-dn.net/?f=h_2%20%3D%20%5Cfrac%7B1%7D%7B2%7Dgt_2%5E2%2Bv_1t_2%3D0.5%5Ccdot%2010%5Cfrac%7Bm%7D%7Bs%5E2%7D%5Ccdot%204%20s%5E2%2Bv_1%5Ccdot%202%20s%3D60m%5Cimplies%5C%5Cv_1%20%3D%2020%5Cfrac%7Bm%7D%7Bs%7D)
Next, we use the kinematic equation for velocity at the end of the first segment of a free fall, to determine h1:
![v_1^2 = 2gh_1+v_0^2 = 2gh_1\implies h_1 = \frac{v_1^2}{2g}=20m](https://tex.z-dn.net/?f=v_1%5E2%20%3D%202gh_1%2Bv_0%5E2%20%3D%202gh_1%5Cimplies%20h_1%20%3D%20%5Cfrac%7Bv_1%5E2%7D%7B2g%7D%3D20m)
The total height is then
![h = h_1 + h_2 = 20m + 60 m = 80m](https://tex.z-dn.net/?f=h%20%3D%20h_1%20%2B%20h_2%20%3D%2020m%20%2B%2060%20m%20%3D%2080m)