<span>Δ</span>E = q + w
q = heat (quantity of)
q and w can be positive or negative depending on if work/heat is being absorbed/done on the system or released/done by the system
Answer
given,
mass of jogger = 67 kg
speed in east direction = 2.3 m/s
mass of jogger 2 = 70 Kg
speed = 1.3 m/s in 61 ° north of east.
jogger one
![P_2 = 70\times v cos \theta \hat{i} +70\times v sin \theta \hat{j}](https://tex.z-dn.net/?f=P_2%20%3D%2070%5Ctimes%20v%20cos%20%5Ctheta%20%5Chat%7Bi%7D%20%2B70%5Ctimes%20v%20sin%20%5Ctheta%20%5Chat%7Bj%7D%20)
now
P = P₁ + P₂
magnitude
![P = \sqrt{198.22^2 + 79.59^2}](https://tex.z-dn.net/?f=P%20%3D%20%5Csqrt%7B198.22%5E2%20%2B%2079.59%5E2%7D)
![P =213.60 kg.m/s](https://tex.z-dn.net/?f=P%20%3D213.60%20kg.m%2Fs)
![\theta = tan^{-1}\dfrac{79.59}{198.22}](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20tan%5E%7B-1%7D%5Cdfrac%7B79.59%7D%7B198.22%7D)
![\theta = 21.87](https://tex.z-dn.net/?f=%5Ctheta%20%3D%2021.87)
the angle is
north of east
Answer:
It's D. The geothermal energy from Earth's core loses most of its heat before reaching the outer layer. The plates on the outer layer have been proven to be moving due to evidence such as earthquakes, volcanic eruptions, and tsunamis.
Explanation:
<span>The first stage in the Gas model of stress is alarm and
mobilization. So the correct option in regards to the given question is option “d”.
Hans Selye is the person that evolved this model and he has explained this
model in complete details. He has broken
down his model into three stages. The first stage involves alarm and
mobilization. The second stage includes resistance. The third and the final
stage include the exhaustion stage. These are the stages that an organism goes
through to restore back the balance when stress is exerted from outside. </span>
Answer:
C
Explanation:
they both have to be the same for both to not move