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Deffense [45]
2 years ago
12

A Ferris Wheel, starting from rest, undergoes a constant angular acceleration of 0.033 rad/s2 to get to its final operating angu

lar velocity of 0.24 rad/s. (a) How long does it take the Ferris Wheel to get to its operating angular velocity
Physics
1 answer:
vekshin12 years ago
7 0

Answer:

The time taken for the Ferris Wheel to get the final angular velocity is 7.27 s.

Explanation:

Given;

initial angular velocity of the Ferris Wheel, \omega _i = 0

angular acceleration, α = 0.033 rad/s²

final angular velocity, \omega _f = 0.24 rad/s

The time taken for the Ferris Wheel to get the final angular velocity is calculated as;

t = \frac{\omega _f - \omega _i}{\alpha} \\\\t = \frac{o.24 -0}{0.033}\\\\t = 7.27 \ s

Therefore, the time taken for the Ferris Wheel to get the final angular velocity is 7.27 s.

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A car accelerates uniformly from rest to speed 6.6 m/s in 6.5 s .Find the distance the car travel during this time .​
kirill [66]

Answer:

<em>The distance the car traveled is 21.45 m</em>

Explanation:

<u>Motion With Constant Acceleration </u>

It occurs when an object changes its velocity at the same rate thus the acceleration is constant.

The relation between the initial and final speeds is:

v_f=v_o+at\qquad\qquad [1]

Where:

a   = acceleration

vo = initial speed

vf  = final speed

t    = time

The distance traveled by the object is given by:

\displaystyle x=v_o.t+\frac{a.t^2}{2}\qquad\qquad [2]

Solving [1] for a:

\displaystyle a=\frac{v_f-v_o}{t}

Substituting the given data vo=0, vf=6.6 m/s, t=6.5 s:

\displaystyle a=\frac{6.6-0}{6.5}

a = 1.015\ m/s^2

The distance is now calculated with [2]:

\displaystyle x=0*6.5+\frac{1.015*6.5^2}{2}

x = 21.45 m

The distance the car traveled is 21.45 m

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2 years ago
The greatest variation in size, mass, and luminosity occurs in:.
Sidana [21]

The greatest variation in size, mass, and luminosity occurs in elliptical galaxies.

<h3>What is Variation?</h3>

This is defined as the difference from the norm which is exhibited by objects.

In the solar system, variation in features such as size, mass, and luminosity occurs mostly in elliptical galaxies due to presence of array of stars thereby making it the most appropriate choice.

Read more about Elliptical galaxies here brainly.com/question/24985948

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What is the technology used behind scanning probe microscopes?
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Fill in the blank: An object is most likely to sink in water if _________________.
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A boy kicks a soccer ball, giving it an initial speed of 7.5m/s at an angle of 27° above the horizontal(=ground). How high will
Gelneren [198K]

When the initial speed given is 7.5m/s at an angle of 27° , ball will go

4.637 meters.

Assume no air opposition to the ball ;

Vertical component of ball is sin 27° =  0.453

0.453* 7.5 = 3.404 meters /sec

Time taken to reach ground is :

3.404 = -3.404+9.8*t

t= 6.808/9.8= 0.694 sec

Horizontal component is 7.5*cos27°= 6.682m/s

Distance = speed * time

=6.682 * 0.694

=4.637 meters

Horizontal distance it can cover in 0.694 sec is 4.637 meters

So range of ball is 4.637 meters.

Form of motion experienced by an object or particle that is projected near surface of the earth and moves along a curve is called Projectile motion. Three types of projectile motion are Horizontal projectile motion. Oblique projectile motion and Projectile motion on an inclined plane.

To know more about projectile motion, refer

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