Heat energy is responsible for it.It is because the waxy substance present in the lava lamp get hot at its bottom and cold on its top and this process is mostly like convection
1) Displacement: -49 m, in the negative direction
Explanation:
The displacement of an object is a vector, whose magnitude is given by the difference between the final point of the motion and the starting point:
![d=p_f -p_i](https://tex.z-dn.net/?f=d%3Dp_f%20-p_i)
In this problem, the starting point is +34 m, while the final position is -15 m; therefore, the displacement is:
![d=-15 m- (+34 m)=-49 m](https://tex.z-dn.net/?f=d%3D-15%20m-%20%28%2B34%20m%29%3D-49%20m)
and the direction is negative, in according to the negative sign.
2) Velocity: -3.27 m/s
Explanation:
Velocity is equal to the ratio between the displacement and the time taken:
![v=\frac{d}{t}](https://tex.z-dn.net/?f=v%3D%5Cfrac%7Bd%7D%7Bt%7D)
in this problem, we have:
d = -49 m is the displacement
t = 15 s is the time
therefore, the velocity is
![v=\frac{-49 m}{15 s}=-3.27 m/s](https://tex.z-dn.net/?f=v%3D%5Cfrac%7B-49%20m%7D%7B15%20s%7D%3D-3.27%20m%2Fs)
and the direction is negative.
Answer:
Then the cell won't be able to function properly. With no nucleus the cell will lose control. It won't know what to do and there will be no cell division.
Explanation:
Answer: 125/24 N
Explanation:
The work can be calculated with W = Fs
Where W = work
F = force
and s = displacement
Let's set up the equation:
500w = F * 96m
= 125/24 or roughly 5.2 N of force
Answer:The highest possible efficiency of this heat engine is 11%
Explanation:
Saturated water temperature at P1, Pressure in Heat addition,
1.1 MPa=185°C +273= 458K
Saturated water temperature at P2, Pressure in Heat rejection,
0.3MPa=133.5°C+ 273=406.5K
The highest possible efficiency of any heat engine is the Carnot efficiency given as
Carnot efficiency, ηmax = 1- (T2/ T1)
1- (406.5K/458K)
1-0.88755=0.112
=11%