Only when the torque is constant the work done is done during angular displacement. So the correct option is d.
Work done by the force is calculated as the dot product of force and angular displacement of the point of application of force. It is equal to the change in rotational kinetic energy of the body.
Work done by a torque can be calculated by taking an analogy from work done by force.
Work done = torque × angular displacement
So work is done by a torque during angular displacement only when torque is constant.
If a torque applied on a body rotates it through an angle ω, the work done by torque is
W = ζ × ω
To know more about the work done by torque refer to the link given below:
brainly.com/question/17083207
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Answer:
It will condese to 47
Explanation:
As per as the table chart , Substance G melting point at 47 and boiling point at 120 so AS per as the chart
Speed of light= wavelenght * frequency
Frequency = (3x10^8)/(1 x 10^-4)
= 3 x 10^+12
Answer:w=mxg
2x10 =20 N
Explanation:force acting downwards is mg mass into gravitional feild
Answer:
False
Explanation:
Atomic mass (Also called Atomic Weight, although this denomination is incorrect, since the mass is property of the body and the weight depends on the gravity) Mass of an atom corresponding to a certain chemical element). The uma (u) is usually used as a unit of measure. Where u.m.a are acronyms that mean "unit of atomic mass". This unit is also usually called Dalton (Da) in honor of the English chemist John Dalton.
It is equivalent to one twelfth of the mass of the nucleus of the most abundant isotope of carbon, carbon-12. It corresponds roughly to the mass of a proton (or a hydrogen atom). It is abbreviated as "uma", although it can also be found by its English acronym "amu" (Atomic Mass Unit). However, the recommended symbol is simply "u".
<u>
The atomic masses of the chemical elements are usually calculated with the weighted average of the masses of the different isotopes of each element taking into account the relative abundance of each of them</u>, which explains the non-correspondence between the atomic mass in umas, of an element, and the number of nucleons that harbors the nucleus of its most common isotope.
