Answer:
Explanation:
initial angular velocity, ωo = 0 rad/s
angular acceleration, α = 30.5 rad/s²
time, t = 9 s
radius, r = 0.120 m
let the velocity is v after time 9 s.
Use first equation of motion for rotational motion
ω = ωo + αt
ω = 0 + 30.5 x 9
ω = 274.5 rad/s
v = rω
v = 0.120 x 274.5
v = 32.94 m/s
Answer: D
Explanation: It says that in the paragraph
Answer:
if the speed of the object triples the kinetic energy becomes nine times the initial kinetic energy. If the speed of an object changes by a factor k, the change in the kinetic energy is of a factor k^2.
Explanation:
If the polarity of a magnet is flipped while its strength remains constant. There is no change in the electromagnetic force since there is no change in the current in the wire.
<h3>What is the faraday law of electromagnetic induction?</h3>
According to Faraday's law of electromagnetic induction, the rate of change of magnetic flux linked with the coil is responsible for generating emf in the coil resulting in the flow of the amount of current.
If a magnet's polarity were switched while maintaining the same magnetic field intensity. There is no change in the electromagnetic force, and there is no change in the current in the wire.
Hence the current in the wire will be the same as in the first part.
To learn more about the electromagnetic induction refer to:
brainly.com/question/26334813
#SPJ1
Answer:
Fusion is the change of phase from: solid to liquid.
Explanation:
Fusion is defined as change of of a substance from solid state to liquid state.Also known as melting.
Solid → liquid (Fusion)
Vaporization is defined as change of of a substance from liquid state to gaseous state.
liquid → gas (vaporization)
Freezing is defined as change of of a substance from liquid state to solid state.
liquid → solid (solidification)
Deposition is defined as change of of a substance from gaseous state to solid state.Also known as melting.
Gas→ solid (deposition)
Sublimation is defined as change of of a substance from solid state to gaseous state.Also known as melting.
Solid → gas (sublimation)
Condensation is defined as change of of a substance from gaseous state to solid state.Also known as melting.
Gas→ liquid (Condensation)
