Explanation:
a) The Earth makes 1 rotation in 24 hours. In seconds:
24 hr × (3600 s / hr) = 86400 s
b) 1 rotation is 2π radians. So the angular velocity is:
2π rad / 86400 s = 7.27×10⁻⁵ rad/s
c) The earth's linear velocity is the angular velocity times the radius:
40075 km × 7.27×10⁻⁵ rad/s = 2.91 km/s
For an automobile spring using a 25 kg car battery, the spring constant is mathematically given as
K=4.08.3N/m
<h3>What is the spring constant?</h3>
Question Parameter(s):
a 25 kg car battery
The springs are pulled out by 0.06 meters
Generally, the equation for the Force is mathematically given as
F=mg
Therefore
F=(25*9.8)
(25*9.8)=K(0.06)
K=4.08.3N/m
In conclusion, the spring constant
K=4.08.3N/m
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brainly.com/question/13370981
The fundamental frequency of a standing wave which has
string of length L
mass per unit meu
has the tension T
is given by f = 1/2L
Now we are required to find if the tension is doubled, with all other factors held constant, what will be the effect on the fundamental frequency
According to the formula,
the fundamental frequency f is directly proportional to the factor of square root
Hence when the tension is doubled while other factors remaining constant
the formula will become
f= 1/2L
Hence the change in the fundamental frequency will be of the factor
Therefore, the change will be of
Disclaimer: the question has missing part 1 and part 2 and hence part 3 has been answered
For further reference:
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Answer:
30m/s
Explanation:
Suppose there's no friction between the office chair and the floor. The only thing that impact the motion of the boy is the ejected carbon dioxide. We can apply the law of momentum conservation to find the his (the boy, the chair and the empty extinguisher) after the extinguisher is emptied.
Before the ejects, the system momentum is 0, due to at rest and no speed
After the ejects, momentum of the carbon dioxide is
9*20 = 180 kg m/s
The momentum of his is then
P + 180 = 0
P = -180
MV = -180
(26 + 16 + 18)V = - 180
V = -180/(26 + 16 + 18) = -30 m/s
So he would have a speed of 30m/s in the opposite of the ejected carbon dioxide direction
Self productive and it depends on how whom is behaving.