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A typical American family uses 700 kWh of electricity a month.
Part A- What is the average current in the 120 V power line to the house? Answer in A.
Part B- On average, what is the resistance of a household? Answer in Ω.
A 75 kg bobsled is pushed along a horizontal surface by two athletes. After 4.5 m from rest, the bobsled has a speed of 6.0 m/s. How much force did the two athletes push with
Starting from rest, you move with a constant acceleration of 2.1 m/s2 for 13.0 s and then move with an acceleration of -2.1 m/s2, What is your maximum speed attained
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. obtain How long is the arm of the centrifuge
A 15 N block lifted straight upward by a hand applying a force of 15 N has an initial kinetic energy of 7 J. What is the block's final kinetic energy
A carbon nanopaeticle contains 7000 carbon atoms. According to the Einstein model of a solid, how many oscillators are in this block
Yoy are presented with a coaxial cable of length L. The inner core has a uniform charge distrubution throughout its radius, Find the Electrostatic Potential in all radial regions
what is the depth d. what is the angle of refraction.
You are given a container with 25.7 g of hydrogen atoms. What is the total charge on the electrons in the container? what is total charge on protons?
A string on a guitar vibrates at 420 Hz. If the tension on the string is 102 N, what is the mass of the string if the portion that vibrates is 63.7 cm long
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. What resistance should be used in the charging circuit if the wipers are to operate once every 1.40 s
Define proton-proton chain efficiently
A railroad car of mass m moving at v collides completely inelastically with a stationary railroad car of mass 2 m and couples to it
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