Question in proper order
The rotational kinetic energy term is often called the <em>kinetic energy </em><em>in</em> the center of mass, while the translational kinetic energy term is called the <em>kinetic energy </em><em>of</em> the center of mass.
You found that the total kinetic energy is the sum of the kinetic energy in the center of mass plus the kinetic energy of the center of mass. A similar decomposition exists for angular and linear momentum. There are also related decompositions that work for systems of masses, not just rigid bodies like a dumbbell.
It is important to understand the applicability of the formula
Which of the following conditions are necessary for the formula to be valid?
a. The velocity vector 
must be perpendicular to the axis of rotation
b.The velocity vector must be perpendicular or parallel to the axis of rotation
c. The moment of inertial must be taken about an axis through the center of mass
Answer:
Option c
Explanation:
The first two conditions are untrue, this is because, you can have rotation in any direction and translation in any direction of any collection of masses. Rotational and translational velocities of masses do not depend on each other
The last statement is true because by definition, the moment of inertia, which is a measure of reluctance, is usually taken about a reference point which is the center of mass
Answer:
24445.85 J/s
Explanation:
Area, A = 300 m^2
T = 33° C = 33 + 273 = 306 k
To = 18° C = 18 + 273 = 291 k
emissivity, e = 0.9
Use the Stefan's Boltzman law
Where, e be the energy radiated per unit time, σ be the Stefan's constant, e be the emissivity, T be the temperature of the body and To be the absolute temperature of surroundings.
The value of Stefan's constant, σ = 5.67 x 10^-8 W/m^2k^4
By substituting the values
E = 24445.85 J/s
Answer:
7...is mitochondria :- mitochondria are known as the power house of the cell.
Answer:
For a solar eclipse to occur the moon must be between the earth and the sun (the light of the sun is blocked)'
By definition this is a new moon (which occurs when the moon cannot be seen because it is located between the sun and the earth).
The wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.
Given the data in the question;
- Frequency of the light ray;
- Wavelength;
<h3>Wavelength</h3>
Wavelength can be simply defined as the spatial period of a periodic wave. When the shapes of waves are repeated, the distance over which they are repeated is called wavelength. Wavelength is expressed as;
Where 
is wavelength, f is frequency and c is speed of light( 
)
We substitute our values into the expression above to determine the wavelength of the light ray.
Therefore, the wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.
Learn more about wavelength: brainly.com/question/16776907
