Answer: 10.34
Explanation:
Given
graph for a particle is given
angle turned by the particle in radians is given by the area under
graph
The area is given by
![A=20\times (2-0)+10(4-2)+\dfrac{1}{2}\times (20-10)\times (3-2)\\A=40+20+5=65\ rad](https://tex.z-dn.net/?f=A%3D20%5Ctimes%20%282-0%29%2B10%284-2%29%2B%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%20%2820-10%29%5Ctimes%20%283-2%29%5C%5CA%3D40%2B20%2B5%3D65%5C%20rad)
Revolutions(N) made by the object is given by
![N=\dfrac{65}{2\pi }=10.34](https://tex.z-dn.net/?f=N%3D%5Cdfrac%7B65%7D%7B2%5Cpi%20%7D%3D10.34)
Answer:
![C = 1.77 \times 10^{-4} F](https://tex.z-dn.net/?f=C%20%3D%201.77%20%5Ctimes%2010%5E%7B-4%7D%20F)
Explanation:
As we know that in AC circuit we have
![V = i x_c](https://tex.z-dn.net/?f=V%20%3D%20i%20x_c)
here we have
V = 59 V
i = 5.05 A
so we will have
![x_c = \frac{59}{5.05}](https://tex.z-dn.net/?f=x_c%20%3D%20%5Cfrac%7B59%7D%7B5.05%7D)
![x_c = 11.68 ohm](https://tex.z-dn.net/?f=x_c%20%3D%2011.68%20ohm)
also we know that
![x_c = \frac{1}{\omega C}](https://tex.z-dn.net/?f=x_c%20%3D%20%5Cfrac%7B1%7D%7B%5Comega%20C%7D)
here we will have
![11.68 = \frac{1}{(2\pi 77)C}](https://tex.z-dn.net/?f=11.68%20%3D%20%5Cfrac%7B1%7D%7B%282%5Cpi%2077%29C%7D)
![C = 1.77 \times 10^{-4} F](https://tex.z-dn.net/?f=C%20%3D%201.77%20%5Ctimes%2010%5E%7B-4%7D%20F)
Answer:
157.8 J
Explanation:
m = mass of the cylinder = 7 kg
h = height difference in top and bottom of the incline = 2.3 m
g = acceleration due to gravity = 9.8 m/s²
TE = Total Energy at the bottom
PE = Gravitational potential energy at the top
Using conservation of energy
Total Energy at the bottom = Gravitational potential energy at the top
TE = PE
TE = m g h
TE = (7) (9.8) (2.3)
TE = 157.8 J
The process in which water vapor and
carbon dioxide retain heat is called the greenhouse effect.
<span>There are many gases which causes greenhouse
effect like carbon dioxide, methane, nitrous oxide, fluorinated gases etc. These
gases trap the heat in the atmosphere, resulting the surface of earth to get
warm producing greenhouse effect.</span>
Answer:
a.
Explanation:
there would be a new planet is our solar system which could cause different gravitation pull on all the planets also there could be possible be new life form or other valuable metals that haven't been discovered on this planet. hope this helps somewhat