Answer:
The velocity is ![v = 6.66 \ m/s](https://tex.z-dn.net/?f=v%20%20%3D%20%206.66%20%5C%20%20m%2Fs%20)
Henrietta is at distance
from the under the window
Explanation:
From the question we are told that
The speed of Henrietta is ![v= 2.70 \ m/s](https://tex.z-dn.net/?f=v%3D%20%202.70%20%5C%20m%2Fs)
The height of the window from the ground is ![h = 36.5 \ m](https://tex.z-dn.net/?f=h%20%20%3D%20%2036.5%20%5C%20%20m)
Generally the time taken for the lunch to reach the ground assuming it fell directly under the window is
![t = \sqrt{\frac{2 * h }{g} }](https://tex.z-dn.net/?f=t%20%20%3D%20%20%5Csqrt%7B%5Cfrac%7B2%20%2A%20%20h%20%7D%7Bg%7D%20%7D)
=>
=>
Generally the time taken for the lunch to reach Henrietta is mathematically represented as
![T = t + t_1](https://tex.z-dn.net/?f=T%20%3D%20%20t%20%2B%20%20t_1)
Here
is the time duration that elapsed after Henrietta has passed below the window the value is given as 4 s
Now
=>
Generally the distance covered by Henrietta before catching her lunch is
![s= v * T](https://tex.z-dn.net/?f=s%3D%20%20v%20%20%2A%20%20T)
=> ![s= 2.70 * 6.73](https://tex.z-dn.net/?f=s%3D%20%202.70%20%20%2A%206.73)
=> ![s= 18.17 \ m](https://tex.z-dn.net/?f=s%3D%20%2018.17%20%5C%20%20m)
Generally the speed with which Bruce threw her lunch is mathematically represented as
![v = \frac{18.17}{2.73}](https://tex.z-dn.net/?f=v%20%20%3D%20%20%5Cfrac%7B18.17%7D%7B2.73%7D)
![v = 6.66 \ m/s](https://tex.z-dn.net/?f=v%20%20%3D%20%206.66%20%5C%20%20m%2Fs%20)
<h2>
Answer:
joules</h2>
Explanation:
From the first law of thermodynamics,
Δ
=Δ
+![W](https://tex.z-dn.net/?f=W)
Where
is the heat given to the gas,
is the internal energy of the gas,
is the workdone by the gas.
When pressure is constant,
![\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}](https://tex.z-dn.net/?f=%5Cfrac%7BV_%7B1%7D%7D%7BT_%7B1%7D%7D%3D%5Cfrac%7BV_%7B2%7D%7D%7BT_%7B2%7D%7D)
![V_{2}=\frac{2.6\times 900}{300}=7.8m^{3}](https://tex.z-dn.net/?f=V_%7B2%7D%3D%5Cfrac%7B2.6%5Ctimes%20900%7D%7B300%7D%3D7.8m%5E%7B3%7D)
When pressure is constant,
Δ![V](https://tex.z-dn.net/?f=V)
Where
is pressure and
is the volume of the gas.
Given ![P=1.5\times 10^{5}Pa](https://tex.z-dn.net/?f=P%3D1.5%5Ctimes%2010%5E%7B5%7DPa)
Δ![V=](https://tex.z-dn.net/?f=V%3D)
![7.8-2.6=5.2m^{3}](https://tex.z-dn.net/?f=7.8-2.6%3D5.2m%5E%7B3%7D)
So,![W=1.5\times 10^{5}\times 5.2=7.8\times 10^{5}J](https://tex.z-dn.net/?f=W%3D1.5%5Ctimes%2010%5E%7B5%7D%5Ctimes%205.2%3D7.8%5Ctimes%2010%5E%7B5%7DJ)
Given that Δ![U=6\times 10^{5}](https://tex.z-dn.net/?f=U%3D6%5Ctimes%2010%5E%7B5%7D)
So,Δ![Q=](https://tex.z-dn.net/?f=Q%3D)
![6\times 10^{5}+7.8\times 10^{5}=13.8\times 10^{5}J](https://tex.z-dn.net/?f=6%5Ctimes%2010%5E%7B5%7D%2B7.8%5Ctimes%2010%5E%7B5%7D%3D13.8%5Ctimes%2010%5E%7B5%7DJ)
Answer:
jupiter they have 79 moons,saturn has 62,uranus has 27,neptune has 14,pluto has 5,
Explanation:
Halo stars are found in the space region of the Segmentum Obscurus. These stars are some of the oldest in the galaxy. However, they are situated in an environment where only very few elements are naturally occurring. Hence, most planets found there are rocky and are not suitable for habitable life.