Find the cost of ising a 3kw immersion heater

Assignment Help Physics
Reference no: EM131026893

Find the cost of ising a 3kW immersion heater and five 60 W electric bulbs for a day if the price per unit (kWh) is sh. 4.50 

Reference no: EM131026893

Questions Cloud

What is angle of flashlight when the light become a parabola : If you point a flashlight at a wall, it makes a circle. If you angle it a bit, the light makes an ellipse. Angle it even more and it makes a parabola. What is the angle of the flashlight when the light becomes a parabola?
The coeffiecient of kinetic friction : Automobile A, weighing 4000 lb, approaches stationary automobile B, which weighs 2000 lb. 50 feet before collision, A applies its brakes ang goes into a skid. B also has its brakes applied, so it goes into a skid after A rams B. A travels 50 feet aft..
Calculate the entropy change for the process : What sign for ?S do you expect when the volume of 0.200 mol of an ideal gas at 27 °C is increased isothermally from an initial volume of 10.0 L? If the final volume is 18.5 L, calculate the entropy change for the process.
What is the size of firms profit or loss : What is the size of this firms profit or loss - will there be entry or exit? Will this restaurant's demand curve shift left or right?
Find the cost of ising a 3kw immersion heater : Find the cost of ising a 3kW immersion heater and five 60 W electric bulbs for a day if the price per unit (kWh) is sh. 4.50
What is the entropy change of the system for this process : Express the second law of thermodynamics as a mathematical equation. In a particular spontaneous process the entropy of the system decreases.What can you conclude about the sign and magnitude of ?Ssurr?
A transmission line between a power station : A transmission line between a power station and a factory has a resistance of 0.05 ohms in each of the two wires.If a current of 100 A is delivered at 100V,a) what useful power is delivered into the load?
What current does the lamp need to light normally : A transformer connected to a 240 volt a.c mains is used to light a 12V/36W lamp.a) what current does the lamp need to light normally?
What can say about the entropy change of the surroundings : Express the second law of thermodynamics in words. If the entropy of the system increases during a reversible process, what can you say about the entropy change of the surroundings?

Reviews

Write a Review

Physics Questions & Answers

  Light of wavelength 6599 nm is emitted by a star the

light of wavelength 659.9 nm is emitted by a star. the wavelength of this light as measured on earth is 660.9 nm. how

  When a potential difference of 735 volts is applied to a

when a potential difference of 7.35 volts is applied to a certain ohmic resistor the current in the resistor is 0.919

  Only a small part of an iceberg protrudes above the water

Only a small part of an iceberg protrudes above the water, while the bulk lies below the surface. The density of ice is907 kg/m3 and that of seawater is 1029 kg/m3.Discover the percentage of the iceberg's volume that lies below the surface.

  A car moving with constant acceleration covered the

a car moving with constant acceleration covered the distance between two points 60 m apart in 6 s. its speed as it

  What is now his heart rate as measured by an earth observer

the astronaut whose heart rate on earth is 65 per minute increase his velocity to v=.95c. what is now his heart rate as measured by an earth observer

  Compute the minimum amplitude of vibration

A computer to be used in a satellite must be able to withstand accelerations of up to 27 times the acceleration due to gravity. What is the minimum amplitude of vibration

  Water flows during a horizontal, cylindrical pipe of radius

Water ( ρw = 1000 kg/m3 ) flows during a horizontal, cylindrical pipe of radius 0.0200 m. The pipe bends upwards and climbs 5.0 m in height. It then bends horizontal again however widens to a radius of 0.0300 m. What volume flow rate will keep the pr..

  In carbon-nitrogen nuclear fusion cycle

In carbon-nitrogen nuclear fusion cycle, protons are fused to form a helium nucleus. Positrons releases some energy. The number of protons fused and the number of positrons released in this process respectively are

  What distance from the object should the lens be placed

You need to use a 21-cm-focal-length lens to produce an inverted image one third the height of an object. At what distance from the object should the lens be placed? Express your answer to two significant figures and include the appropriate units.

  How far does the earth move while you are falling

If the seat of the chair is 30 cm offthe floor, how far does the Earth move while you are falling

  Determine the gravitational potential energy of the earth

Assume the mass density of Earth from the center to r= R_cm (radius of the core mantle boundary) is d_cm and from R_cm until the surface r=R_e the density is d_e. Using these densities, determine the gravitational potential energy of the Earth

  Find the wheels angular acceleration as it slowed down

At time t=0 a grinding wheel has an angular velocity of 25.0rad/s . It has a constant angular acceleration of 35.0rad/s^2 until a circuit breaker trips at time t = 2.00s. What was the wheel's angular acceleration as it slowed down

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