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charle [14.2K]
3 years ago
6

All of the following statemants about the earths atmosphere are true except:

Physics
1 answer:
Aleks04 [339]3 years ago
8 0
<span>All the statements about the atmosphere are correct except statement 2. The atmosphere has effects on landforms and does affect the biosphere. For instance, landforms are constantly been broken down and renew by the process of weathering, erosion, etc. The atmosphere plays principal roles in these processes. </span>
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In an old-fashioned amusement park ride, passengers stand inside a 4.9-m-diameter hollow steel cylinder with their backs against
Viefleur [7K]

Answer:

24.07415 rpm

Explanation:

\mu = Coefficient of friction = 0.63

v = Velocity

d = Diameter = 4.9 m

r = Radius = \frac{d}{2}=\frac{4.9}{2}=2.45\ m

m = Mass

g = Acceleration due to gravity = 9.81 m/s²

Here the frictional force balances the rider's weight

f=\mu F_n

The centripetal force balances the weight of the person

\mu m\frac{v^2}{r}=mg\\\Rightarrow \mu \frac{v^2}{r}=g\\\Rightarrow v=\sqrt{\frac{gr}{\mu}}\\\Rightarrow v=\sqrt{\frac{9.81\times 2.45}{0.63}}\\\Rightarrow v=6.17656\ m/s

Velocity is given by

v=\omega r\\\Rightarrow \omega=\frac{v}{r}\\\Rightarrow \omega=\frac{6.17656}{2.45}\\\Rightarrow \omega=2.52104\ rad/s

Converting to rpm

2.52104\times \frac{60}{2\pi}=24.07415\ rpm

The minimum angular speed for which the ride is safe is 24.07415 rpm

4 0
3 years ago
What is indicated by the slope of an acceleration vs. time graph?
alukav5142 [94]
What acceleration graph??
4 0
3 years ago
Read 2 more answers
QUESTION 1 What is defined as anything made up of atoms that has mass and takes up space?
grandymaker [24]
Matter is the answer.
4 0
2 years ago
Read 2 more answers
Which of the following is the smallest in mass?
s344n2d4d5 [400]
⭐Hola User._____________

⭐Here is Your Answer...!!!

_______________________

↪⭐〽Electrons are the smallest in the mass than all other particles .
5 0
2 years ago
While working out, a man performed 375 J of work in 11 seconds. What was his power?
Sidana [21]
Power is determined by work/time.
We have P = W/T as our formula.
There is 375J of work, and 11s of time.
Plug in 375J for Work, and 11s for Time.
P = 375/11
Our power is 34.09.
Hope this helps!
8 0
2 years ago
Read 2 more answers
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