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Consider two cars A and B. car A is raised to some height h inside a service station, and car B is speeding down the highway. Describe the potential, kinetic, and total energies of each car. Explain how much work is used to raise A to height h? What happens to the kinetic energy of B if its speed is doubled?
The height of the lower part of the container is 2.5-m and the neck contains a column of water 8.50-m high. The total volume of the column of water in the neck is 0.200 m^3. What is the magnitude of the force exerted by the water on the bottom of ..
A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value.
Both spacecraft are initially at rest. Explain how far does the starship move as it pulls the shuttlecraft aboard?
Styrofoam has a density of 300 kg/m^3. What is the maximum mass that can hang without sinking from a 40cm diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.
find out the initial velocity of the ball. How fast will the electron be moving when it is very far away.
What must the charge (sign and magnitude) of a particle of mass 1.40 be for it to remain stationary as placed in a downward-directed electric field of magnitude 670.
A 12 kg weather rocket generates a thrust of 250 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 560 N/m, is anchored to the ground. What is the rocket's speed while the s..
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string?
Four particles are held in place at the corners of a square with sides of length L. Each particle has a charge q and mass m. (a) What is the potential energy of the system of charges.
Define FM and what parameter of the intelligence signal causes frequency deviation of the carrier?
A proton is initially at rest at a point where the potential is 515V. Sometime later the proton is at a point where the potential is 190V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
The drawing shows one horizontal wire with the current going up and one vertical wire with the current going to the right. Point A is dH to the right and dV above the intersection. Point B is dH to the left and dV below the intersection.
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