Answer:
Calculate the wavelength associated with an electron with energy 2000 eV.
Sol: E = 2000 eV = 2000 × 1.6 × 10–19 J
Each side has to have at least 44 horses
F61160 N. This is further explained below.
<h3>What is the force?</h3>
Generally, We are only interested in the component that operates horizontally since the vertical components all cancel each other out. The pressure difference works on the hemisphere to generate a normal force all over the surface, but we are only concerned with that force's horizontal component. This may be determined by supposing the hemispheres to be two flat circular plates of the same radius as the hemispheres that have been forced together.
Therefore, force is equal to pressure multiplied by area, which is
F= (970 -15 )( * (0.45 m)2)
F=60754 N for each side.
Therefore, each side has to have at least 44 horses
44* 1390 = 61160 N
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Answer:
(a) Total time = 105.5 sec
(b)average speed = 31.26 m/sec
Explanation:
We have given that three-wheeled car starts from rest that initial velocity u = 0 m/sec
Final velocity = 35 m/sec
Acceleration 
According to first law of motion we know that v = u+at
So 
t = 17.5 sec
After this car travels 83 sec at a constant speed and after that it takes 5 sec additional time to stop
(a) So total time in which car is in motion = 17.5+83+5 = 105.5 sec
(b) Total distance traveled during first 17.5 sec
Distance traveled in 83 sec with with velocity of 35 m/sec = 
For next 5 second
Initial velocity u = 35 m/sec
Final velocity = 0 as finally car stops
So 
Distance traveled 
So total distance traveled = 306.25+2905+87.5 = 3298.75 m
Total time = 105.5 sec
So average speed 
Protein molecule are made from amino acid
Answer:
1. Least massive stars are the coolest and least luminous, lower right of main sequence, on HR diagram.
2. Most massive are the hottest and most luminous, upper left of main sequence on Hr Diagram.
3. The radius of stars are related to their sprectral type. having the O being the hottest upper left and M being the coolest bottom right.
