Calculate the current in the motor

Assignment Help Physics
Reference no: EM13533874

A 120-V motor has mechanical power output of 3.20 hp. It is 91.0% efficient in converting power that it takes in by electrical transmission into mechanical power.

(a) Find the current in the motor.

A

(b) Find the energy delivered to the motor by electrical transmission in 3.40 h of operation.

MJ

(c) If the electric company charges $0.110/kWh, what does it cost to run the motor for 3.40 h?

Reference no: EM13533874

Questions Cloud

Explain octane is allowed to react with oxygen : 2C8H18+25O2image from custom entry tool16CO2+18H2O, 0.120 mol of octane is allowed to react with 0.890 mol of oxygen. Which is the limiting reactant
Calculate the resistance of the heater when it is turned on : In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome that gets hot when turned on. calculate the resistance of the heater when it is turned on
What is the role of the Fe-S cluster in PhotosystemII : What is the role of the Fe-S cluster in PhotosystemII?
Explain a beaker with 165 ml of an acetic acid buffer : A beaker with 165 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.80 mL of a 0.360 M HCl solution to the beaker. How much will the pH..
Calculate the current in the motor : A 120-V motor has mechanical power output of 3.20 hp. It is 91.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
Explain t-butoxide or sodium hydroxide dissolved : Show the chemical equation of chloroform and a base such as potassium t-butoxide or sodium hydroxide dissolved in water to make a dichlorocarbene and other products.
Heterozygous for a recessiveblue eyed gene : What is the probability that a family of five children will consistof a blue, a brown, a blue, a blue and a brown -eyed child in thisorder. Assume the parents are those in problem 1.
State the equation with products for reaction : some species below react with fe2+ and some do not. for each that does write the equation with products for those that don't write no reaction -na (s) -na+ (aq) -co (s) -co2+ (aq) -h+ (aq)
Calculate what is the speed at which the satellite travels : A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 3.70 104 s. What is the speed at which the satellite travels

Reviews

Write a Review

Physics Questions & Answers

  How much work can it perform in each cycle

The highest theoretical efficiency of a gasoline engine, based on the Carnot cycle, is 0.300 or 30.0%. If the heat engine absorbs 812 J of energy from the hot reservoir during each cycle, how much work can it perform in each cycle

  Compute the tangential speed of points

(1) A circular wheel has a radius R = 0.45 + or - 0.02 m. The wheel is observed to be rotating uniformly with period T = 2.00 +or- 0.05 s. (i) Compute the frequency with which the wheel spins (ii) Compute the angular speed of the wheel. (iii) Comp..

  Compute the net torque acting on the ladder

A 9.58-m ladder with a mass of 22.2 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 264 N. What is the net torque acting on the ladder

  How many coulombs of positive charge are there

How many coulombs of positive charge are there in 4.20 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons

  Estimate the electric potential energy of this group

Four identical charges (+2.0 ?C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group

  What would be the magnitude of acceleration

A 68-kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.11. What would be the magnitude of acceleration.

  A mass of 96 g is attached to a spring with a spring

what is the equation for gravitational potential energy?what is the equation for kinetic energy?define conservation of

  What is the minimum coefficient of friction

A flat (unbanked) curve on a highway has a radius of 180{\rm m}. What is the minimum coefficient of friction that will prevent sliding

  Find should the radius of the disk be

The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.209 m and mass 4.51 kg, what should the radius of the disk be

  Calculate the total magnetic flux through the cylinder

A long, straight wire carrying a current of 5.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 5.00 m

  What is the period of oscillations

A body of mass 200 g is acted upon by a force of 20 n. Find the acceleration of the body. If the body above is having a volume of 1000 cm3 estimate its density in kg/m2.

  What is the current through resistor r2

The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2? R2 and R3 are parallel so these need to be treated with R1 as Requiv = R1+ (R2*R3)/R2+R3 but don't know where to ..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd