Answer:
1. The bird close to the center
2. 4/25 of the original force.
Explanation:
1. Tangential velocity is v=w*d (in m/s), where w is the rotational speed, commonly denoted as the letter omega (in radians per second). d is the distance from the center of the rotating object to the position of where you would like to calculate the velocity (in meters).
As we can note, the furthest from the center we are calculating the velovity the higher it is, because the rotational velocity is not changing but the distance of the object with respect to the center is. If v=w*d, then the lower the d (distance) the lower the tangential velocity.
2. Take a look at the picture:
We have the basic equation for the gravitational force.
We have to forces: Fg1, which is the original force, and Fg2, the force when the mass and the distance changes.
If we consider that mass 2 didn't change (m2'=m2), mass 1 is four times its original (m1'=4*m1) and distance is 5 times the original (r'=5*r), then next step is just plugging it into the equation for Fg2.
Dividing the original force Fg1 by the new force Fg2 (notice you can just as well do the inverse, Fg2 divided by Fg1) gives us the relation between the forces, cancelling all the variables and being left only with a simple fraction!
<span><span>1.
</span>All clouds are made up of tiny ice crystals or small
water droplets that form together with a dust on the atmosphere.
Cirrus, cirrostratus and cirrocumulus are made up of ice crystals. It forms
when the water vapor goes condensation at high altitudes in where the pressure
on the atmosphere reaches the point from 600 mbar at 4000 meter above the sea
level up to 200mbar at 12 000m above sea level. These clouds form
thunderstorms, cyclones and contrails (a manmade cloud).</span>
<span>
</span>
In the absence of a net force, an object can be at rest or in motion with a constant velocity.
<h3>What is Newton's first law of motion?</h3>
Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path <u>unless acted upon</u> by an external force.
This law is also called the law of inertia because it depends on mass.
F(net) = ma
when, F(net) = 0, acceleration will be zero and velocity will be constant.
Thus, in the absence of a net force, an object can be at rest or in motion with a constant velocity.
Learn more about net force here: brainly.com/question/11556949
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The answer to this question is D or the last one
Answer:
The extent to which it would stretch is 
Explanation:
From the question we are told that
The initial length is 
The area is 
The Young modulus of the steel is 
The tension is 
The Young modulus is mathematically represented as
Where 
is the stress which is mathematically represented as
Substituting values
And e is the strain which is mathematically represented as
Where 
The extension of the steel string
Substituting these into the equation above
Substituting values
