Answer:
F = 3750 N
Explanation:
Given that,
Mass of Donny, m = 75 kg
Initial speed, u = 25 m/s
He suddenly slams on the brakes to avoid hitting a squirrel crossing the road, final speed = 0
Time, t = 0.5 s
We need to find the force the seatbelt exert on him. The force is given by :
F = ma
a is acceleration
So, the force is 3750 N.
Answer:
Explanation:
Given
velocity of skateboarder is 4.1 m/s
Force
time=20 s
As the motion is along x axis therefore
Power
Power
only x component of force comes into play because there is no motion in Y direction.
Work done will be
Work done on skate boarder by rope is 1148 J
and work done on bicyclist by rope is -1148 as the direction of velocity is opposite to applied force
Answer:
Wavelength is calculated as 213.9 nm
Solution:
As per the question:
Wavelength of light = 570 nm
Time, t = 16.5 ns
Thickness of glass slab, d = 0.865 ns
Time taken to travel from laser to the photocell, t' = 21.3
Speed of light in vacuum, c =
Now,
To calculate the wavelength of light inside the glass:
After the insertion of the glass slab into the beam, the extra time taken by light to cover a thickness t = 0.865 m is:
t' - t = 21.3 - 16.5 = 4.8 ns
Thus
where
n = refractive index of the medium
v = speed of light in medium
n = 2.66
Now,
The wavelength in the glass:
Cells that are located in the Eukarya domain contain nuclei. So there you have it, your answer is Eukarya!
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