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You buy a 1700W electric tea kettle while on a study abroad program in Britain, where electricity is delivered to homes at 230V. If you utilize the tea kettle at home in the United States, where electricity is delivered to homes at 110V, how much power will it consume?
Suppose a car is traveling at 14 m/s, and the driver sees a traffic light turn red. After 0.50 s has elapsed (the reaction time) the driver applies the brakes and the car decelerates at 8.0 m/s2.
a 1100-turn coil of wire that is 2.3cm in diameter is in a magnetic field that drops from 0.15t to 0 t in 12 ms. the
Calculate the electric flux through the circle when its face is perpendicular to the field lines and then when at 45 degrees to the field lines
A person is sitting on a freely spinning lab stool (no friction). is her angular velocity increasing or decreasing
A 60.0-kg runner expends 325 W of power while running a marathon. determine the volume of bodily fluid (assume it is water) lost per hour
At t = 0 it is known that of 1000 neutrons in a one-dimensional box of width 10-5 cm, 100 have energy 4E1, How many neutrons are in the left half of the box
Suppose a star with radius 8.39 multiply.gif 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation. compute the surface temperature of the star
The apparent weight of passengers on a roller coaster increases by 52 as the car goes through a dip with a 35 radius of curvature. What is the car's speed at the bottom of the dip
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 3.6 µm. What is the magnitude of the dipole moment
A mine car (mass=490 kg) rolls at a speed of 0.50 m/s on a horizontal track, as the drawing shows. Determine the speed of the car-coal system
A 4.57 MeV alpha particle from radium226Ra decay makes a head-on collision with a uranium nucleus. A uranium nucleus has 92 protons. What is the force on the alpha particle at the instant when it is at the distance of closest approach?
When the centrifuge reaches an angular speed of 2.5 rad/s, the trainee experiences a total acceleration equal to 4.8 times the acceleration due to gravity. Explain how long is the arm of the centrifuge?
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