Answer:
1, 4, 5, see the explanation below
Explanation:
We must remember that scalar magnitudes are distinguished by having only a physical quantity, that is, they have no sense or direction as an example of scalar quantities, we find mass, temperature, energy, specific heat, power among others.
1 . 150 [grams] , because is a mass = scalar
4. 5 kilometer [race], is an amount = scalar
5. 34 steps, is an amount = scalar
Number 2, and 3 are vectors because they have amount and direction.
(198,000 joule / 15 minute) x (minute / 60 sec) = 220 joule/sec = <em>220 watts
</em>
The annual cost of electricity is $28.908 .
work done is equal to energy consumed
therefore total energy is calculated as power times the duration of operation .
where W= work done
P=power
t= time of operation
therefore,
total work done (W)=0.06×12×365 kw
=262.8 kw
so total annual electricity bill = 262.8×0.11
=$28.908
Learn more about electricity bill consumption here:
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Answer:
To produce magnetic field
Explanation:
When current passes through a coil in presence of magnetic field then torque is produced in it.This is the working principle of motor.
You have to divide both objects to get the answer
