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Point charge A with a charge of +3.00 muC is located at the origin. Point charge B with a charge of +6.00 muC is located on the x axis at x = 7.00 cm. And point charge C with a charge of +2.00 μC is located on the y axis at y = 6.00 cm. What is the net force (magnitude and direction) exerted on each charge by the others?
An aluminum rod is 23.0 cm long at 20°C and has a mass of 350 g. If 15000 J of energy is added to the rod by heat, what is the change in length of the rod
Two rigid rods are oriented in parallel to each other and to the ground. Determine the current in the rods
A 1792 kg safe is 3.01 m above a heavy-duty spring when the rope holding the safe breaks. What is the spring constant of the spring
tritium has a half-life of 12.33 years.a what fraction of the nuclei in a tritium sample will remain after 3.50 yr?b
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light in nm
A 300 N box is placed on a frictionless inclined plane that makes a 22.0° angle with the horizontal. What is the normal force of the ramp on the box
In a parking lot, an SUV of mass 2000 kg driving at 5 m/s collides head on with a sports car of mass 1000 kg driving in the opposite direction. Determine the velocity of the sports car before the collision
A particle with charge ?2 µC is located on the x-axis at the point 4 cm, What is the magnitude of the total electrostatic force on a third particle with a charge of -2 µC placed on the x-axis at -2 cm
Assume a beam of 4.60 eV protons strikes a potential energy barrier of height 6.30 eV and thickness 0.890 nm, at a rate equivalent to a current of 1180 A. How many years would you have to wait (on average) for one proton to be transmitted during the ..
two identical spaceships are traveling in the same direction. an observer on earth measures the first to have a speed
On a brisk walk, a person burns about 380 Cal/h. At this rate, how many hours of brisk walking would it takes to lose a pound ofbody fat? ( A pound of body fat stores an amount of chemical enegy equivalent to 3500 Cal.)------h
A light string is wrapped around the outer rim of a solid uniform cylinder of diameter 75.0 cm that can rotate without friction about an axle through its center. What is the mass of the cylinder
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