Answer:
Explanation:
distance covered by ice cube = 0.5 m
force acting downwards = mgsin49
force of friction acting along surface upwards
= mgcos49 x .16 ( reaction force of inclined surface R = mgcos49.)
net force acting downwards
mgsin49 - mgcos49 x .16
mg (sin49 - cos49 x .16 )
net acceleration downwards
g (sin49 - cos49 x .16 )
= (.7547 - .105 ) x 9.8
= 6.367 m / s²
s = ut + 1/2 at²
0.5 = 0 + 1/2 x 6.367 x t²
t² = .1570
t = .4 s
b )
Let required inclination be θ
in the second case net acceleration
a = g ( sin θ - .385 cosθ )
s = ut + 1/2 at²
0.5 = 0 + 1/2 x g ( sin θ - .385 cosθ ) x .4 x .4
( sin θ - .385 cosθ ) = .6377
sin θ = .385 cosθ + .6377
θ = 58 degree.
Renewable energy
<u>Advantages :-</u>
1. Easily regenerate
2. Boost economic growth
3. Easily available
4. Support environment
5. Low maintenance cost
<u>Disadvantages :-</u>
1. Weather dependency
2. High installation cost
3. Noise caused by wind energy
4. Fluctuation problem (solar)
5. Intermittency issue (wind)
Non-renewable energy
<u>Advantages :-</u>
1. Concentrated energy source
2. Reliable energy source
3. Can be built anywhere
4. No radioactive waste
<u>Disadvantages :-</u>
1. Produces greenhouse gases
2. Contributes to global warming
3. Produces acid rain
4. Harmful to environment when they are burnt
<em>I hope this helps.....</em>
Answer:
![3.38\cdot 10^9 m](https://tex.z-dn.net/?f=3.38%5Ccdot%2010%5E9%20m)
Explanation:
The formula for the double-slit interference pattern is:
![y=\frac{m\lambda D}{d}](https://tex.z-dn.net/?f=y%3D%5Cfrac%7Bm%5Clambda%20D%7D%7Bd%7D)
where:
m is the order of the maximum
is the wavelength
D is the distance between the slits and the screen
d is the distance between the two slits
If we assume for instance m=5, the formula gives us the distance between the fifth maximum and the first maximum. However, this will also gives us the distance between the fifth minimum and the first minimum, as the minima fall exactly between two maxima.
Therefore, if we use:
![m=5\\d=0.22 mm=2.2\cdot 10^{-4} m\\y=59 cm=0.59 m\\D=6.3 mm=6.3\cdot 10^{-3}m](https://tex.z-dn.net/?f=m%3D5%5C%5Cd%3D0.22%20mm%3D2.2%5Ccdot%2010%5E%7B-4%7D%20m%5C%5Cy%3D59%20cm%3D0.59%20m%5C%5CD%3D6.3%20mm%3D6.3%5Ccdot%2010%5E%7B-3%7Dm)
We can find the wavelength of the light:
![\lambda=\frac{yD}{md}=\frac{(0.59 m)(6.3\cdot 10^{-3} m)}{(5)(2.2\cdot 10^{-4} m)}=3.38 m=3.38\cdot 10^9 m](https://tex.z-dn.net/?f=%5Clambda%3D%5Cfrac%7ByD%7D%7Bmd%7D%3D%5Cfrac%7B%280.59%20m%29%286.3%5Ccdot%2010%5E%7B-3%7D%20m%29%7D%7B%285%29%282.2%5Ccdot%2010%5E%7B-4%7D%20m%29%7D%3D3.38%20m%3D3.38%5Ccdot%2010%5E9%20m)
Hello,
I believe the leading <span>factour that prevents the growth of tropical plants in the northern part of the United States is climate.</span>
Faith xoxo
Answer:
Explanation:
the scales of temperature are kelvin,celsius and fahrenheit so to interconvert them use the formula:
K-273/100 = C/100 = F-32/180