AC can be produced using a device called an alternator. This device is a special type of electrical generator designed to produce alternating current. A loop of wire is spun inside of a magnetic field, which induces a current along the wire.
To solve this problem we will apply the concepts related to the Doppler effect. This is understood as the change in apparent frequency of a wave produced by the relative movement of the source with respect to its observer. Mathematically this is given as,
Here,
v = Speed of the waves in the middle
= Speed of the receiver in relation to the medium (Positive if the receiver is moving towards the transmitter or vice versa)
= Speed of the source with respect to the medium (Positive if the source moves away from the receiver or vice versa)
Our values are given as,
Replacing,
Solving for the velocity of the source,
Therefore the speed of the other train is 26.1m/s
The correct option is C.
For an individual to become a code specialist, such a person must have advanced computer skills especially in coding processes. The medical field has many sub specialties, therefore a coding specialist must choose to work in a particular area of medicine which interest him most. Such people must also be able to work independently.
Answer:
you have to organize the data. a= acceleration vi=inicial velocity vf=final velocity t=time.
a=80m/s
vi=0
vf=?
t=40 s
the formula you have to use is:
vf=vi+a*t (final velocity= inicial velocity plus acceleration times time)
Explanation:
I was the best one at my class, hope it helped
