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3 years ago

Explain the method to measure the external diameter of a sphere

Physics

1 answer:

Serjik [45]3 years ago

8 0

Answer:

Sphere is a geometrical object in dimensional space that surface of a circle and ball.

Explanation:

Sphere is that the circular objects in the two dimensional space (1) circle

(2) disk. Two dimensional space is a set of points and the distance of that point,The two points of Sphere that length and center.

Sphere can constructed as the named of surface form circle about any diameter. circle is the special type of the revolution replacing the circle,

sphere is the distance r is the radius of the ball and circle is the center of mathematical ball,as the center and the radius of the sphere is to respectively.

The ball and sphere has not be maintained mathematical references as a solid references. A sphere of any radius is centered at the number of zero.

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alexdok [17]

The angular velocity of the propeller is 136.1 rad/s; linear velocity is 153.1 m/s; centripetal acceleration 20835.2 m/s² and 2123.8 g.

<h3>What is the angular velocity of the propeller?</h3>

The angular velocity of the propeller in rad/s is given as follows:

1 rev/m = 2π/60 rad/s.

1300 rev/min = 1300 * 2π/60 = 136.1 rad/s.

b. The linear velocity, v = radius * angular velocity

Linear velocity, v = 2.25/2 * 136.1

v = 153.1 m/s

c. Centripetal acceleration, $a = \frac{v^{2}}{r}$

$a = \frac{(153.1)^{2}}{1.125} = 20835.2\:ms^{2}$

Centripetal acceleration in terms of g; $g = \frac{20835.2}{9.81} = 2123.8 g$

Therefore, the angular velocity of the propeller is 136.1 rad/s; linear velocity is 153.1 m/s; centripetal acceleration 20835.2 m/s² and 2123.8 g.

Learn more about angular velocity and centripetal acceleration at: brainly.com/question/10703948

#SPJ1

7 0

1 year ago

A spherical raindrop 2.5 mm in diameter falls through a vertical distance of 3900 m. Take the cross-sectional area of a raindrop

Karolina [17]

Answer:

276.62 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s² (positive downward and negative upward)

Equation of motion

$v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 9.81\times 3900+0^2}\\\Rightarrow v=276.62\ m/s$

Neglecting air drag the velocity of the spherical drop would be 276.62 m/s

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3 years ago

Does specific heat change with mass?

ch4aika [34]

Heat capacity ( C ) does change with mass. However, specific heat is the heatcapacity per unit mass ( c=Cm ). Therefore if you double the amount of mass in your system, you've doubled its heat capacity, but you've kept the specific heat the same. ... Specific gravity is another such quantity.

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3 years ago

Which is heavier a pound of bricks or a pound of feather

Shkiper50 [21]

Answer:

pound of bricks

meh wrong ? XD

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2 years ago

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If you walk 1.2 km north and then 1.6 km east, what are the magnitude and direction of your resultant displacement?

vodomira [7]