If you ADD those displacements,
(4 km south) + (5 km south) = 9 km south
and
(2 km north) + (5 km north) = 7 km north
Then (9 km south) + (7 km north) = 2 km south
The answer is DC power had to be converted in AC.
DC power is not usually in home. DC current must be converted to to AC, which is the standard in homes and to avoid short circuits.
DC or direct current explains the basic idea of electricity as a flow of electrons.
AC, also known as alternating current, electricity switches direction around 50-60 times each second. In here, electrons do not necessarily have to run in circles to transport energy, they simply run on the spot.
A high pitch always corresponds to a high frequency wave
Answer:
<em>6.8 Kg m/s</em>
Explanation:
<u>Linear Momentum</u>
The linear momentum is defined as the product of the velocity of an object by its mass
P=mv
It's a vectorial magnitude, but if we use its equivalent scalar equation, then v is the speed
The measured speed of a pitch by Aroldis Chapman is v=47 m/s. The ball has a mass of m=145 gram=0.145 Kg. The maximum momentum of the ball was
P=(0.145 Kg)(47 m/s)=6.8 Kg m/s
The options don't show the units of the momentum, but we assumed to be Kg m/s, so the correct option is the third one
Electron
Explanation:
Electrons are negatively charged particles in an atom .
They take up the bulk of the space of an atom.
These particles are the smallest in terms of mass.
- Electrons were initially called cathode rays.
- This subatomic particle was discovered by J.J Thomson.
- He carried out experiments on the gas discharge tube.
learn more:
Subatomic particles brainly.com/question/2757829
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