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As a particle moves along an x axis, a force in the positive direction of the axis acts on it. Figure shows the magnitude F of the force versus position x of the particle. The curve is given by F = a/x2, with a = 9.0 N · m2. Find the work done on the particle by the force as the particle moves from x = 1.0 m to x = 3.0 m by
(a) Estimating the work from the graph and
(b) Integrating the force function.
A swimmer, capable of swimming at a speed of 1.85 m/s in still water (i.e., the swimmer can swim with a speed of 1.85 m/s relative to the water), starts to swim directly across a 1.14-km-wide river. How long does it take the swimmer to cross the ri..
The nucleus of a hydrogen atom is a single proton. The radius of a proton is approximately 1 fm. What is the approximate volume of a proton
The drill pipe has an outer diameter of 75 mm, a wall thickness of 6 mm, and a weight of 0.8 kN/m. If it is subjected to a torque and axial load as shown.
Two identical + 9.0 C point charges are initially 2.5cm from each other. If they are released at the same instant from rest, how fast will each be moving when they are very far away from each other? Suppose they have identical masses of 1.0mg
A geothermal power plant is supplied with water at a well bottom temperature of 225 degrees C and a pressure of 8 MPa. The fluid flows into a flash separator maintained at 40 KPa. The turbine exit pressure is 10KPa.
An object with a density of 761.0 kg/m3 and a mass of 1471.0 kg is thrown into the ocean. Find the volume that sticks out of the water
A car needs to generate 75.0 hp in order to maintain a constant velocity of 21.8 m/s on a flat road. What is the magnitude of the total resistive force acting on the car
A moving particle encounters an external electric field that decreases its kinetic energy from 9520 eV to 7060 eV as the particle moves from position A to position B.
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.360 s to passthis window, which is 2.00 m high. How far is the top of the windowbelow the windowsill from which the flowerpot fell?
A satellite has a mass of 6480 kg and is in a circular orbit 6.12 x 104 m above the surface of a planet. The period of the orbit is 2.00 hours. What is the true weight of the satellite when it is at rest on the planet's surface
When a high-energy proton or pion traveling near the speed of lightcollides with a nucleus, estimate the time for the strong interaction to occur
A block is attached to an ideal spring and is moving in SHM on a horizontal, frictionless surface. The amplitude of the motion is 0.200 meter. Obtain the maximum magnitude of acceleration of block
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