a) many people think that no energy or matter exists outside the universe.
An isolated system is defined as a system that does not interact with its surroundings. This is the reason that its total energy and mass remains constant. Moreover, t<span>otal</span><span> momentum in a system is conserved for collisions occurring in </span><span>isolated systems.</span>
Answer:
Explanation:
Check attachment for solution
Both climate and weather measure conditions in the atmosphere.
The force of friction is zero.
Using F = m a = the force needed is 6 N which means no friction can be acting.
Answer:
The average emf induced in the coil is
.
Explanation:
Given that,
Number of turns = 1000 turns
Area = 85 cm²
Time = 0.090 s
Its plane is perpendicular to Earth's magnetic field.
Angle = 0°
Magnetic strength
We need to calculate the magnetic flux
Using formula of magnetic flux

Put the value into the formula



We need to calculate the average emf induced in the coil

Put the value into the formula



Hence, The average emf induced in the coil is
.