I believe the answer is A Voltage available to each light remains constant regardless of the number of lights that are on.
Color is the least useful property for identification, as the same mineral type can be found in several different colors due to impurities in the mineral.
Answer:
a) 42.9 m/s
b) 41.6m
Explanation:
a) ![V_{0x}=V_{0y}=\frac{v}{\sqrt{2} }](https://tex.z-dn.net/?f=V_%7B0x%7D%3DV_%7B0y%7D%3D%5Cfrac%7Bv%7D%7B%5Csqrt%7B2%7D%20%7D)
![y(t)=0.3+\frac{v}{\sqrt{2} }t -4.9t^{2} \\188=\frac{vt}{\sqrt{2}} \\](https://tex.z-dn.net/?f=y%28t%29%3D0.3%2B%5Cfrac%7Bv%7D%7B%5Csqrt%7B2%7D%20%7Dt%20-4.9t%5E%7B2%7D%20%5C%5C188%3D%5Cfrac%7Bvt%7D%7B%5Csqrt%7B2%7D%7D%20%5C%5C)
solving the eq we get
v=42.9 m/s
b) <em>here,</em>
![t=\frac{116\sqrt{2} }{42.9}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B116%5Csqrt%7B2%7D%20%7D%7B42.9%7D)
when put in y(t) it gives y=44.6 m so result is
h=44.6-3= 41.6m
Answer:
Charge enter a 0.100 mm length of the axon is ![8.98\times 10^{-12} C](https://tex.z-dn.net/?f=8.98%5Ctimes%2010%5E%7B-12%7D%20C)
Explanation:
Electric field E at a point due to a point charge is given by
![E=k \frac{q}{r^2}](https://tex.z-dn.net/?f=E%3Dk%20%5Cfrac%7Bq%7D%7Br%5E2%7D)
where
is the constant =![9.0 \times 10^9 Nm^2 / C^2](https://tex.z-dn.net/?f=9.0%20%5Ctimes%2010%5E9%20%20Nm%5E2%20%2F%20C%5E2)
is the magnitude of point charge and
is the distance from the point charge
Charges entering one meter of axon is ![5.\times 10^{11} \times (+e)](https://tex.z-dn.net/?f=5.%5Ctimes%2010%5E%7B11%7D%20%5Ctimes%20%28%2Be%29)
Charges entering 0.100 mm of axon is ![5.\times 10^{11} \times (+e) \times (0.1 \times 10^{-3}](https://tex.z-dn.net/?f=5.%5Ctimes%2010%5E%7B11%7D%20%5Ctimes%20%28%2Be%29%20%5Ctimes%20%280.1%20%5Ctimes%2010%5E%7B-3%7D)
substituting the value of
in above equation, we get charge enter a 0.100 mm length of the axon is
![q=5.\times 10^{11} \times1.6\times 10^{-19} \times (0.1 \times 10^{-3}\\q=8.98\times 10^{-12} C](https://tex.z-dn.net/?f=q%3D5.%5Ctimes%2010%5E%7B11%7D%20%5Ctimes1.6%5Ctimes%2010%5E%7B-19%7D%20%20%5Ctimes%20%280.1%20%5Ctimes%2010%5E%7B-3%7D%5C%5Cq%3D8.98%5Ctimes%2010%5E%7B-12%7D%20C)