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1. Calculate the electrostatic force between a -830 μC charge and a -62 μC charge that are 83 mm apart.
2. An EM wave traveling through a vacuum has a frequency of 5.89×1014 Hz. Determine the WAVELENGTH of the wave. Remember, the speed of light is 3×108 m/s.
3. An object is held 33.2 cm away from a mirror. The mirror has a focal length of -23 cm. determine the image distance, magnification, and if the object is 7.8 cm long, determine the image height.
4. You are standing on a canyon edge and you give a shout. After 4.5 s have passed, you hear your echo. The temperature at the canyon is 3.5 °C. Determine the speed of sound. and Determine how far away the cliff wall is that your voice bounced off of.
Nichrome wire of cross-sectional radius 0.754 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
Point A is at a potential of +250 V, and pointB is at a potential of -140V. An α-particle is a helium nucleus that containstwo protons and two neutrons; the neutrons are electrically neutral.
Concept Simulation 26.4 provides the option of exploring the ray diagram that applies to this problem, Find the image distance and the object distance
In the "before" part of the figure below, car A (mass 1000 kg) is stopped at a traffic light when it is rear-ended by car B (mass 1600 kg). Both cars then slide with locked wheels until the frictional force from the slick road (with a low µk of 0...
A horizontal force does 50 J of work on a box, while the kinetic friction force, between the box and the floor, What is the cange inn the box's kinetic energy
You may assume all of the methane that does react forms H2O and CO2. If the reactants are fed into the reactor at 25ºC and 1 bar and the exiting gases leave at 1000ºC and 1 bar, determine the percentage of methane that passes through the reactor u..
suppose that two balls of mass 2.5 x 10-4 kg each carry equal charges and are suspended by identical threads of length
Someone throws a rock at a clock 5 meters away from them. The rock is thrown at a height of 120cm. The velocity that it reaches is 25 m/s. By how much did she miss the center of the clock
A proton in a tin nucleus is known to lie with in a sphere whoes diameter is about 1.2x10^-14m. what is the uncertainty in the momentum of the proton
A 1.00-µF capacitor is connected to a 12.0-V battery. How much energy is stored in the capacitor
After the collision, Car B moves to the left at 6.26 m/s. Find the velocity of Car A after the collision. Then, verify your answer by calculating the total kinetic energy before and after the collision.
question the plates of a spherical capacitor have radii 43.4 mm and 46.9 mm. what must be the plate area in square
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