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The drawing below shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 6.1 cm from the origin O. For each of the situations in the drawing, determine the magnitude of the net electric field at the origin.
A Cepheid variable has been found to have a period of 22 days, from this its luminosity is determined to be 2.8 x 1029 W, Use this information to calculate the distance to the Cepheid
The displacement of a wave traveling in the positive x-direction is y(x, t) = (3.5 cm)cos(1.7x - 129t), where x is in m and t is in s. What is the frequency of this wave
A Styrofoam box has a surface area of 0.83 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam.
Water is pumped into a storage tank from a well delivering 19.0 gallons of water in 26.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?
An electric motor is rated to have a maximum power output of 0.68 hp. how fast (i.e., at what speed) can it lift the crate
A mass-spring system oscillates with an amplitude of 5.50cm. If the spring constant is 247N/m and the mass is 584g, determine the mechanical energy of the system
An electron, traveling at a speed of 6.10 × 107 m/s, strikes the target of an X-ray tube. What is the wavelength of the photon
A 51.0cm -long solenoid 1.35 cm in diameter is to produce a field of 0.335mT at its center. How much current should the solenoid carry
A block of ice at 0 degrees C, whose mass is initially 30.0 kg, slides along a horizontal surface, starting at a speed of 5.56 m/s and finally coming to rest after travelling 21.8 m. figure out the mass of ice melted (in grams) as a result of frictio..
A particular fish tank filled with fresh water (n = 1.33) has a coral reef sticker stuck to an exterior wall, What is the index of refraction of the tank's walls
A length of aluminum wire has a resistance of 16.0 ? at 28.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, find the temperature of the oven
A set of charges are arranged in the following way: a 10.0 nC (nanocoulomb) positively charged particle sits at the origin of a coordinate system, Sketch a diagram of this charge configuration
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