Answer:
Explanation:
The bodies in circular motions experience a force directed towards the center of the circular path called centripetal force.
The force is directed along the radius of the circular path.
The acceleration of the body is also directed along the radius.
The velocity of the rotating body at any instant is directed along the tangent line at the point.
The centripetal force is given by the formula
F = ½ mv²/r
Where,
v²/r = [/tex]a_{c}[/tex] - The centripetal acceleration
The centripetal acceleration can also written in terms of the time period of the rotation,
Hence, the answer is
Increased accessibility and accommodation for people with physical handicaps. Option D
<h3>What is sociology?</h3>
Sociology is the branch of science that deal with the study of the society and human dynamics. It also deals with dynamics of the human society. It also deals with social institutions.
Thus, the social reforms that Sociology has influenced in some way is increased accessibility and accommodation for people with physical handicaps.
Learn more about sociology:brainly.com/question/11098307
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Mechanical energy is the sum of E potensial and E kinetical
The change in frequency is called the Doppler effect. The speed of the car can be calculated by the formula for the Doppler effect for when the observer is standing still and the source of the sound is moving towards him:
f¹={V/(V-Vs)}*f,
where f¹ is the frequency of the car while moving towards the observer, V=343 m/s is the speed of sound, Vs is the speed of the car and f is the frequency of the car while standing still.
We need to solve the equation for the Vs:
f¹/f=V/(V-Vs)
V-Vs=V/(f/f¹)
-Vs=V/(f/f¹)-V
Vs=-V/(f/f¹)+V= -343/(300/330)+343=-343*0.91+343=-312.1+343=30.9 m/s
So the speed of the moving police car is Vs=30.9 m/s.
A small, rocky particle that moves through space and strikes a planet or moon is referred to as a meteorite. A meteorite is a substantial part of the wreckage from a root such as an asteroid including comet, It is described as a meteoroid before its collision. Meteorite's intensity can change from petite to remarkably big.