In industrial and commercial installations, where large motors are often found, it is necessary to power each motor by: B. using AC.
What is an electric motor?An electric motor can be defined as an electrical machine that is designed and developed to convert electrical energy into kinetic energy, especially through the use of an alternating current (AC) and electromagnetic induction.
What is an alternating current?An alternating current can be defined as a type of current that reverses direction periodically, and it is generally accompanied by continuous changes in its magnitude with respect to time.
In industrial and commercial installations, where large motors are often found, it is necessary to power each motor by using alternating current (AC) because these motors usually generate more torque.
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Determine the dimensions for R if R = m V / (d^2 Q) where m is a mass, V is a velocity, d is a diameter, and the dimensions of Q are M/(LT).
No dimensions
M / (L T^2)
M L / T^2
M
L / T
Answer:
No dimension
Explanation:
The given equation is [tex]R = \dfrac{m \cdot V}{d^2 \cdot Q}[/tex], where;
m = Mass
V = Velocity
d = A diameter
The dimension of mass quantity = M
The dimension of the velocity quantity = L/T
The dimension of the dimeter quantity = L
The given dimension of Q = M/(L·T)
Therefore, we get;
[tex]The \ dimension \ of \ R = \dfrac{M \times L/T}{L^2 \times (M/LT)} = \dfrac{M \times L/T}{L \times M/T} = 1[/tex]
Therefore, R has no dimensions
Pls help me, I really need to understand this
Determine the dimensions for W if W = P L^3 / (M V^2) where P is a pressure, L is a length, M is a mass, and V is a velocity.
No dimensions
M
M / (L T^2)
L / T
M L / T^2
Answer:
ML/T^2
this is the correct answer
George is replacing a burned out resistor in a circuit board. The board has a 10, a 20, and a 40 on resistor, all in parallel. When George has sided in the new component in the circuit is fixed, he checks his multimeter. What reading does he get?
Answer:
5.71 ohms
Explanation:
put it in the calculator
The low-pressure fuel system is being discussed. Technician A says that the system must provide an adequate volume of fuel to the high-pressure fuel injection system. Technician B says that the system must provide fuel at a minimum pressure to the high-pressure fuel injection system. Which technician is correct
Answer:
Hence Both technicians A and B are correct that is Technician A says that the system must provide an adequate volume of fuel to the high-pressure fuel injection system. Technician B says that the system must provide fuel at a minimum pressure to the high-pressure fuel injection system are true.
Explanation:
The low-pressure fuel system contains the fuel filters; A fuel level sending unit/tank pick-up; A transfer pump. So from considering both technicians statements both are applicable.
Explanation:
MARK ME AS A BRIANLIEST .........9. SAFELY BACKING UP YOUR VEHICLE INCLUDES ALL OF THE FOLLOWING
EXCEPT:
A. Looking over your right shoulder as you back up
O B. Checking behind your vehicle before you get in
C. Tapping your horn before you back up
what is 222 divided by 11.2
Answer:
The answer of this question is 19.89142857
Answer:
The number 222 is called the numerator or dividend, and the number 11 is called the denominator or divisor.
The quotient of 222 and 11, the ratio of 222 and 11, as well as the fraction of 222 and 11 all mean (almost) the same:
222 divided by 11, often written as 222/11.
Read on to find the result of 222 divided by 11 in decimal notation, along with its properties.
Explanation:
True or false: Units and dimensions are interchangeable words that describe the same concept.
True
False
Answer:
The answer to this is false
Explanation:
It is FALSE that units and dimensions are interchangeable words that describe the same concept.
What are units and dimension?Units is defined as a measure of quantity while dimension specify the measure of a line or curve.
Both terms cannot be used interchangeably even though the dimensions of a quantity is derived from its units.
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The diesel fuel cooler is being discussed. Technician A says that high-pressure fuel systems generate a lot of heat. Technician B says that temperature affects the density of the diesel fuel. Which technician is correct
Answer:
Both the technicians are correct.
Explanation:
As the pressure increases the temperature will also increase in accordance with the Boyle's law hence greater amount of heat is formed.
[tex]Pressure\propto Temperature[/tex]
When the temperature increases the intermolecular spaces increase as the molecules of the fuel gain energy and their kinetic energy increases. This is limited to temperatures below dissociation/combustion temperature of diesel .
Pls help me Extra points
Represent each of the following units as a combination of primitive
dimensions where M=mass, L=length, T=time
Kilometer
Quart
Pascal
Watt
Newton
Horsepower
Kilometer = 1000m
Quart = 0.000946m³
Force = mass × acceleration
=> F = ma
Putting units:
Newton = kg.m/s² or kg.m.s^-2 _____(1)
Pressure = force/area
Putting units:
Pascal = Newton/m²
=> Pascal = kg.m.s^-2.m² [from (1)]
=> Pascal = kg.m^-1.s^-2
Work = force × displacement
=> W = Fs
Putting units:
Joule = Newton.m
=> Joule = kg.m.s^-2.m [from (1)]
=> Joule = kg.m².s^-2 ______(2)
Power = work/time
Putting units:
Watt = joule/s
=> Watt = kg.m².s^-2/s [from (2)]
=> Watt = kg.m².s^-3 ______(3)
Horsepower = 746 watt
=> Horsepower = 746kg.m².s^-3 [from (3)]
Hope it helps!!