1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fantom [35]
3 years ago
11

If two motors are to be started at the same time, the standby power system must have the capacity to provide the _____ of the st

arting kilovolt-ampere values for the two motors *
Engineering
1 answer:
Gwar [14]3 years ago
7 0

Answer:

Sum.

Explanation:

An electric motor can be defined as a machine which is typically used for the conversion or transformation of electrical energy into mechanical energy.

Basically, the mode of operation of an electric motor is simply to supply the motor with an alternating current (AC) voltage to one end, which is then used to power the axle (metal rod) at the other end of the motor.

Two motors can be made to run simultaneously in a synchronous manner through the use of a standby power system that provides the required level of power (alternating current and voltage).

Thus, if two motors are to be started at the same time, the standby power system must have the capacity to provide the sum of the starting kilovolt-ampere (KVA) values for the TWO motors.

You might be interested in
Impedance is defined as the total opposition to current in an AC circuit. Question 17 options: True False
ArbitrLikvidat [17]

Answer: True

Explanation:

The total opposition to current flow in an AC circuit is known as Impedance.

8 0
2 years ago
The mechanical properties of a metal may be improved by incorporating fine particles of its oxide. Given that the moduli of elas
Lilit [14]

Answer:

A) 209.12 GPa

B) 105.41 GPa

Explanation:

We are given;

Modulus of elasticity of the metal; E_m = 67 GPa

Modulus of elasticity of the oxide; E_f = 390 GPa

Composition of oxide particles; V_f = 44% = 0.44

A) Formula for upper bound modulus of elasticity is given as;

E = E_m(1 - V_f) + (E_f × V_f)

Plugging in the relevant values gives;

E = (67(1 - 0.44)) + (390 × 0.44)

E = 209.12 GPa

B) Formula for upper bound modulus of elasticity is given as;

E = 1/[(V_f/E_f) + (1 - V_f)/E_m]

Plugging in the relevant values;

E = 1/((0.44/390) + ((1 - 0.44)/67))

E = 105.41 GPa

4 0
3 years ago
Estimate the quantity of soil to be excavated from the borrow pit​
Serggg [28]

Answer

1056

Explanation:

for example

A soil is to be excavated from a borrow pit which has a density of 1.75g/cc and water content of 12%. The G is 2.7 the soil is compacted to that water content of 18% and dry density of 1.65g/cc. for 1000 m3 of soil used in fill estimate

Quantity of soil to be excavated from pit in m3

6 0
3 years ago
An astronaut weighs 125 lbs on the surface of the Earth. What would she weigh in lbs if she is resting in the space shuttle that
alina1380 [7]

Answer:

weight of astronaut  F_2 = 113.38 lb

Explanation:

Given data:

astronaut weight is = 125 lbs

distance of shuttle from  surface of earth is 200 mils

we know that F = G \frac{m_1 m_2}{r^2}

where G, m_1, m_2 are constant value, so we have

\frac{F_1}{F_2} = \frac{r_2^2}{r_1^2}

radius of earth is 4000 miles

where r_2 = 4000 + 200 = 4200 miles

\frac{125}{F_2} = \frac{4200^2}{4000^2}

F_2 = 113.38 lb

3 0
3 years ago
You should always engage the parking brake whenever using any type of lift.
Shtirlitz [24]

Answer:

I would yes every time so it would not role off the lift

Explanation:

8 0
3 years ago
Other questions:
  • What is tcp in network?
    13·1 answer
  • A satellite is launched 600 km from the surface of the earth, with an initial velocity of 8333.3 m./s, acting parallel to the ta
    14·1 answer
  • If the student releases the rocks, which rock will land on Earth's surface
    9·1 answer
  • All sized companies are required to have a written fire prevention plan true or false
    14·2 answers
  • Which clauses in the Software Engineering Code of Ethics are upheld by a whistleblower (check all that apply). a. "Respect confi
    12·1 answer
  • If the rotational speed of a pump motor is reduced by 35%, what is the effect on the pump performance in terms of capacity, head
    9·1 answer
  • A customer comes in with a vehicle that needs tire rotation and wheel alignment. Your bay has a two post frame engaging lift is
    8·1 answer
  • A service station has 10 employees who are responsible for checking in customers who bring their cars in to be serviced. The emp
    14·1 answer
  • A kitchen contains one section of counter that's 20 inches
    7·1 answer
  • a) find the state-space representation of the system. b) is the system controllable? why? c) is the system observable? why
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!