Answer:
B
Explanation:
They are the BASE elements. Cannot make them any simpler.
Answer: C, Temperature difference.
The egg was dropped from a height of 24.7 m (free fall motion)
Explanation:
The motion of the egg is a free fall motion (uniformly accelerated motion), so we can use the following suvat equation:
![v^2-u^2=2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as)
where
v is the final velocity
u is the initial velocity
a is the acceleration
s is the displacement
For the egg in this problem, we have:
u = 0 is the initial velocity
v = 22 m/s is the final velocity
is the acceleration of gravity
s is the vertical displacement (the height from which the egg was dropped)
Solving for s, we find:
![s=\frac{v^2-u^2}{2a}=\frac{22^2-0}{2(9.8)}=24.7 m](https://tex.z-dn.net/?f=s%3D%5Cfrac%7Bv%5E2-u%5E2%7D%7B2a%7D%3D%5Cfrac%7B22%5E2-0%7D%7B2%289.8%29%7D%3D24.7%20m)
Learn more about free fall here:
brainly.com/question/1748290
brainly.com/question/11042118
brainly.com/question/2455974
brainly.com/question/2607086
#LearnwithBrainly
Answer:15.8 m/s
Explanation:
Given
Gravitational Force ![F_g=605 N](https://tex.z-dn.net/?f=F_g%3D605%20N)
Air resistance ![F_d=689 N](https://tex.z-dn.net/?f=F_d%3D689%20N)
mass of Parachutist ![=\frac{605}{9.8}=61.73 kg](https://tex.z-dn.net/?f=%3D%5Cfrac%7B605%7D%7B9.8%7D%3D61.73%20kg)
Velocity after ![3 s](https://tex.z-dn.net/?f=3%20s)
![v=u+at](https://tex.z-dn.net/?f=v%3Du%2Bat)
![v=0+9.8\times 3](https://tex.z-dn.net/?f=v%3D0%2B9.8%5Ctimes%203)
![v=29.4 m/s](https://tex.z-dn.net/?f=v%3D29.4%20m%2Fs)
Now Parachutist opens the parachute
Net for on Parachutist
![605-689=-84](https://tex.z-dn.net/?f=605-689%3D-84%20)
drag force
therefore deceleration ![\frac{84}{61.73}=1.36 m/s^2](https://tex.z-dn.net/?f=%5Cfrac%7B84%7D%7B61.73%7D%3D1.36%20m%2Fs%5E2)
velocity after 10 s is
![v_1=v+at](https://tex.z-dn.net/?f=v_1%3Dv%2Bat)
![v_1=29.4-1.36\times 10](https://tex.z-dn.net/?f=v_1%3D29.4-1.36%5Ctimes%2010)
![v_1=15.8 m/s](https://tex.z-dn.net/?f=v_1%3D15.8%20m%2Fs)
Answer:
Explanation:
As the elevator starts moving up with an acceleration, so the weight becomes
W - mg = ma
W = m (g + a)
Thus, the weight of the body is greater than the normal weight at rest.