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A 0.20-kg object is oscillating on a spring with a spring constant of k = 15 N/m. What is the potential energy of the system when the object displacement is 0.040 m, exactly half the maximum amplitude?
What is the main possible displacement of the shopper
A block of mass mb is attached to one end of a spring and is sliding on a horizontal frictionless surface. the other end of the spring is fixed. find the new period and new amplitude of the motion
A 3.80 m-long, 430 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..
Light of wavelength 5.0*10^-7 m in air is incident normally (perpendicular) on a doubled slit. The distance between the slit is 4.0*10^-4 m, Caculate the line density in slits/mm of the diffraction grating
A ball of mass 1.020 g and positive charge q =45.2 microC is suspended on a string of negligible mass in a uniform electric field. We view that the ball hangs at an angle of theta=15.0 from the vertical. What is the magnitude of the electric field.
A moon rock is found to contain 500 g of 232Th and 100 g of 208Pb. Assuming that all of the lead has resulted from the decay of thorium, calculate the age of the moon rock
The current in a 100 watt lightbulb is 0.900A . The filament inside the bulb is 0.120mm in diameter. What is the electron current in the filament
Cut a 1 cm cube in dimension along the X, Y, and Z axis 10 times and calculate the volume and surface area at each cut.
A beetle 4.80mm is examined with magnifier of focal length 10.3 cm. If the observer's eye is relaxed while using the magnifier, what is the apparent length of the beetle
In deep space two spheres each of radius 5.00 m are connected by a 3.00 x 10^2 m nonconducting cord. If a uniformly distributed charge of 35.0 mC resides on the surface of each sphere, calculate the tension in the cord.
An open railroad car of mass 2404 kg is coasting with an initial speed of 18 m/s on a frictionless, horizontal track. How much water (in kilograms) has accumulated in the car
A certain kind of glass has nblue = 1.560 for blue light and nred = 1.510 for red light. what is the angle between the red and blue light
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