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An unusual spring has a restoring force of magnitude F = (2.00 N/m)x + (1.00 N/m2)x 2, where x is the stretch of the spring from its equilibrium length. A 3.00-kg object is attached to this spring and released from rest after stretching the spring 1.65 m. If the object slides over a frictionless horizontal surface, how fast is it moving when the spring returns to its equilibrium length?
Calculate the absorbed dose in Gy to the skin of a person which receives 1500 ergs/gm of beta radiation from a cloud of radioactive krypton-85 gas.
A space station is constructed in the shape of a wheel 25 in diameter, with essentially all of its 5.10×10^5 mass at the rim.
A driver applies a horizontal force of 20 N (to the right) to the top of a steering wheel. Calculate the angular acceleration of the steering wheel about the central axis
A dielectric-filled parallel-plate capacitor has plate area of 30cm^2 and plate separation of 5mm. The capacitor is connected to a battery that creates a constant voltage of 10V. The dielectric constant is 3. All through the problem, use epsilon_0..
An iron bar 40 cm long is braised to a copper bar 40 cm long and of the same diameter. What is the temperature of the junction point
Three wires are arranged parallel to each other. Wire 1 sits at x = -2.5m with a current I1 = 3.0A directed into the page, Determine the location of wire 3 and the direction of the current such that the net magnetic force acting on wire 3 is zero
A track has a height that is a function of horizontal position x, given by h(x) = x^3 + 2x^2 ? 14x + 16. What kind of equilibrium exists at each of these positions
A 7320 kg satellite has an elliptical orbit. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. Find the work done by the gravitational force when the satellite moves from the ap..
If the mass is suspended by a spring M = 200g, What is the value of the spring constant of the spring
To store the energy produced in 1hour by a 110 electric power plant, how many cubic meters of water will have to be pumped from the lower to the upper reservoir? Suppose the upper reservoir is 510 meters above the lower one, and we can neglect the sm..
Two 2.0-cm-diameter insulating spheres have a 6.00cm space between them. find the electric field strength at the midpoint between the two spheres
question1submarine when at rest underwater uses a sonar device that sends 20 khz sound pulses downward from bottom of
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