The net force on the sled is 300 N
Explanation:
First of all, we start by finding the acceleration of the bobsled, by using the suvat equation:
where:
v = 6.0 m/s is the final velocity of the sled
u = 0 is the initial velocity
a is the acceleration
s = 4.5 m is the displacement of the sled
Solving for a, we find
Now we can find the net force on the sled by using Newton's second law:
F = ma
where
F is the net force
m = 75 kg is the mass of the sled
is the acceleration
Solving the equation, we find the net force:
Learn more about acceleration and Newton laws here:
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Answer: yes u can use a 6.75 when measuring the pencil
Yea it would be barrier. since the stream has a cover for the water
<span> (ρ = m / V) hope this helps...:)</span>
Answer:
540 nm
Explanation:
According to the question,
The refractive index of the soap bubble, .
The thickness of the soap bubble wall is, .
Now, for constructive interference of soap bubble.
.
Now for first order m=1.
Therfore,
Substitute all the variables in the above equation.
.
Therefore,
.
Therefore the visible light wavelength which is strongly reflected is 540 nm.