Answer:
C
Explanation:
A theory can be changed when new evidence is found. A law doesn't change because it is universally a fact. It doesn't need new evidence to support it.
Examples of Newton's three law of motion.
First law of motion: A rocket being launched up in the atmosphere.
Second law of motion:while riding a bicycle, a bicycle acts as a mass and our legs pushing on the pedals of the bicycle is the force.
Third law of motion:when we jump off from the boat,the boat moves backward.
Hope,it will helpyouu!
Answer:
is applied to
Explanation:
An input force is push or pull that is applied to the machine and causes work to be done on it.
Input force for every machine should be lesser than the output force. The output force is the resulting force which produces work.
The force produced by any machine is a function of the input force and the design of the machine.
Any force applied to a machine is the input force.
The space station completes 2 revolutions each minute, so that it traverses a distance of 2<em>π</em> (100 m) = 200<em>π</em> m each minute, giving it a linear/tangential speed of
<em>v</em> = (200<em>π</em> m) / (60 s) ≈ 10.472 m/s
(a) The astronaut would experience an acceleration of
<em>a</em> = <em>v</em> ² / (100 m) ≈ 1.09662 m/s² ≈ 0.1119<em>g</em> ≈ 0.11<em>g</em>
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(b) Now you want to find the period <em>T</em> such that <em>a</em> = <em>g</em>. This would mean the astronaut has a tangential speed of
<em>v</em> = (200<em>π</em> m) / <em>T</em>
so that her centripetal/radial acceleration would match <em>g</em> :
<em>a</em> = <em>g</em> = ((200<em>π</em> m) / <em>T </em>)² / (100 m)
Solve for <em>T</em> :
(100 m) <em>g</em> = (400<em>π</em> ² m²) / <em>T</em> ²
<em>T</em> ² = (400<em>π</em> ² m²) / ((100 m) <em>g</em>) = (4<em>π</em> ² m)/<em>g</em>
<em>T</em> = √((4<em>π</em> ² m) / (9.8 m/s²)) ≈ 2<em>π</em> √(0.102 s²) ≈ 2.007 s ≈ 2.0 s
Answer:
The probability that it will take a week for it three wet weather on 3 separate days is 0.06166 and its standard deviation is 0.9447
Explanation:
We are given that A city of Punjab has 15 percent chance of wet weather on any given day.
So, Probability of wet weather = 0.15
Probability of not being a wet weather = 1-0.15 =0.85
We are supposed to find probability that it will take a week for it three wet weather on 3 separate days
Total number of days in a week = 7
We will use binomial over here
n = 7
p =probability of failure = 0.15
q = probability of success=0.85
r=3
Formula :
Standard deviation =
Standard deviation =
Standard deviation =0.9447
Hence The probability that it will take a week for it three wet weather on 3 separate days is 0.06166 and its standard deviation is 0.9447
