Answer:
14 billion light years away
Explanation:
v = Recessional velocity = 70km/s/million parsec
D = Proper distance
Hubble constant
From Hubble's law we have the relation
The distance in light years of the galaxy is 14 billion light years away
Given, m1 = 3.50 g
m2 = 5.5 g
r₁=(3i^ + 3j^)t + 2j^ t²
r₂ =3i^ - 2j^t² - 6j^t
t = 2.50 sec.
Now the position of the center of mass is,
The velocity of the center of mass = (m₁r₁+m₂r₂)/(m₁+m₂)
= {3.5[(3i^ + 3j^)t + 2j^ t²]+5.5[3i^ - 2j^t² - 6j^t]}/(3.5+5.5)
= (-2.89i^-1.39j^)cm
So the velocity of the center of mass = (-2.89i^-1.39j^)cm
What is Velocity?
Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time. Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies.
What is the Center of mass?
In physics, the center of mass of distribution in space (sometimes referred to as the balance point) is the unique point where the weighted relative position of the distributed mass sums to zero. This is the point at which a force may be applied to cause a linear acceleration without an angular acceleration.
What is the velocity of a particle?
The velocity of a particle is its speed and the direction in which it's moving. It is also described as the instantaneous rate of change of the particle's distance traveled and the direction in which the distance is changing.
To learn more about velocity of particle, refer:
brainly.com/question/80295?source=archive
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The correct statement is
Ultraviolet light has both a higher frequency and a higher radiant energy than visible light.
because ultraviolet light has wavelength smaller than the visible light hence has a greater frequency as compared to visible light. (frequency is inversely related to wavelength. hence smaller the wavelength , greater will be the frequency)
we also know that the radiant energy is directly proportional to the frequency. hence greater the frequency , greater will be the radiant energy.
Since the frequency is greater for ultraviolet light , it radiant energy is also greater