1. Over-hunting
2. A disappearance of a primary food source
<span>3. Drought</span>
Answer:
increase in temperature of water is 10° C
Explanation:
Given data
pizza = 500 kcal = 500000 calories
cold water = 50 L
to find out
increase in temperature of water
solution
we know heat formula that is
heat = m × specific heat × Δt
here m is mass = 50000 gram and Δt is change in temperature
and specific heat = 1 cal / gram C
so put here all value and find Δt
500000 = 50000 × 1 × Δt
Δt = 10° C
so increase in temperature of water is 10° C
Take the missile's starting position to be the origin. Assuming the angles given are taken to be counterclockwise from the positive horizontal axis, the missile has position vector with components
![x=v_0\cos20.0^\circ t+\dfrac12a_xt^2](https://tex.z-dn.net/?f=x%3Dv_0%5Ccos20.0%5E%5Ccirc%20t%2B%5Cdfrac12a_xt%5E2)
![y=v_0\sin20.0^\circ t+\dfrac12a_yt^2](https://tex.z-dn.net/?f=y%3Dv_0%5Csin20.0%5E%5Ccirc%20t%2B%5Cdfrac12a_yt%5E2)
The missile's final position after 9.20 s has to be a vector whose distance from the origin is 19,500 m and situated 32.0 deg relative the positive horizontal axis. This means the final position should have components
![x_{9.20\,\mathrm s}=(19,500\,\mathrm m)\cos32.0^\circ](https://tex.z-dn.net/?f=x_%7B9.20%5C%2C%5Cmathrm%20s%7D%3D%2819%2C500%5C%2C%5Cmathrm%20m%29%5Ccos32.0%5E%5Ccirc)
![y_{9.20\,\mathrm s}=(19,500\,\mathrm m)\sin32.0^\circ](https://tex.z-dn.net/?f=y_%7B9.20%5C%2C%5Cmathrm%20s%7D%3D%2819%2C500%5C%2C%5Cmathrm%20m%29%5Csin32.0%5E%5Ccirc)
So we have enough information to solve for the components of the acceleration vector,
and
:
![x_{9.20\,\mathrm s}=\left(1810\,\dfrac{\mathrm m}{\mathrm s}\right)\cos20.0^\circ(9.20\,\mathrm s)+\dfrac12a_x(9.20\,\mathrm s)^2\implies a_x=21.0\,\dfrac{\mathrm m}{\mathrm s^2}](https://tex.z-dn.net/?f=x_%7B9.20%5C%2C%5Cmathrm%20s%7D%3D%5Cleft%281810%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D%5Cright%29%5Ccos20.0%5E%5Ccirc%289.20%5C%2C%5Cmathrm%20s%29%2B%5Cdfrac12a_x%289.20%5C%2C%5Cmathrm%20s%29%5E2%5Cimplies%20a_x%3D21.0%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%5E2%7D)
![y_{9.20\,\mathrm s}=\left(1810\,\dfrac{\mathrm m}{\mathrm s}\right)\sin20.0^\circ(9.20\,\mathrm s)+\dfrac12a_y(9.20\,\mathrm s)^2\implies a_y=110\,\dfrac{\mathrm m}{\mathrm s^2}](https://tex.z-dn.net/?f=y_%7B9.20%5C%2C%5Cmathrm%20s%7D%3D%5Cleft%281810%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D%5Cright%29%5Csin20.0%5E%5Ccirc%289.20%5C%2C%5Cmathrm%20s%29%2B%5Cdfrac12a_y%289.20%5C%2C%5Cmathrm%20s%29%5E2%5Cimplies%20a_y%3D110%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%5E2%7D)
The acceleration vector then has direction
where
![\tan\theta=\dfrac{a_y}{a_x}\implies\theta=79.2^\circ](https://tex.z-dn.net/?f=%5Ctan%5Ctheta%3D%5Cdfrac%7Ba_y%7D%7Ba_x%7D%5Cimplies%5Ctheta%3D79.2%5E%5Ccirc)
Acceleration = (change in speed) / (time for the change)
change in speed = (speed at the end) minus (speed at the beginning)
change in speed = (zero) minus (28 m/s) = -28 m/s
Acceleration = (-28 m/s) / (13 sec)
Acceleration = -2.15 m/s²
The actual answer is B) Chlorine
According to the Bohr Model diagram, the atom has seventeen electrons. This makes it Chlorine.
Sorry if i'm late!!