Physics, 05.05.2021 23:00 tartcandi303

A student used three appliances in her dormitory room: a 1,200-watt iron, which she uses 3.5 hours per month; a lamp with a 100-watt bulb she uses
125 hours per month; and a 700-watt coffee maker, which she uses 15
hours per month.
a. How many kilowatt-hours of electrical energy are consumed in one
month by each appliance?
b. If the local utility company charges 15 cents per kilowatt-hour of
electrical energy consumed, how much does it cost per month to
operate each appliance?

please help I don't understand it

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 10:30, dontcareanyonemo

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Answers: 1

continue

Physics, 22.06.2019 12:30, mommer2019

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Answers: 1

continue

Physics, 22.06.2019 19:30, starswarsfan

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.

Answers: 1

continue

Physics, 23.06.2019 00:00, jazminemendezhidalgo

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume

Answers: 2

continue

You know the right answer?

A student used three appliances in her dormitory room: a 1,200-watt iron, which she uses 3.5 hours...