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A block of mass 12.0 kg slides fromrest down a frictionless 40.0° inclineand is stopped by a strong spring with k = 4.0*104 N/m. The block slides 3.00 m from the point of release to the pointwhere it comes to rest against the spring. When the block comes torest, how far has the spring been compressed?
An oscillator vibrating at 1220Hz produces a sound wave that travels through an ideal gas at 325 m/s when the gas temperature is 22.0 ?C. What should the gas temperature be to achieve this wavelength
A slide projector has a converging lens whose focal length is 119.00 mm. How far from the lens must the screen be located if a slide is placed 122 mm from the lens
A 2.0-kg object is attached to a spring (k=55.6 N/m) that hangs vertically from the ceiling. obtain the magnitude of the maximum acceleration of the object
A woman can read the large print in a newspaper only when it is at a distance of 63 cm or more from her eyes. (a) Is she nearsighted (myopic) or farsighted (hyperopic), and what kind of lens is used in her glasses to correct her eyesight? (b) What sh..
A converging lens of focal length f1=11.0 cm is placed 52.0 cm to the left of a converging lens of focal length f2 = 22.0 cm. What is the overall magnification of the lens combination
A neutral conductor completely encloses a hole inside of it. you observe that the outer surface of this conductor carries a charge of -12 microC. how much charge is on the inner surface of the conductor
A very long solenoid of circular cross section with radius R = 4.0 cm, is centered on, and has its length parallel to, the z axis. What direction is the force on the proton
A 5 kg block, measuring 10 cm per side, is held 50% submerged in water by a helium balloon. what is the diameter of the balloon
An electron with 184eV of kinetic energy in free space passes over a finite potential well 72eV deep that stretches from x=0 to \(x = 0.5\) nm. What is the electron's wavelength in free space
A rod is being used as a lever, as shown in the figure below. The fulcrum is x1 = 1.79 m from the load and x2 = 3.81 m from the applied force. If the load has a mass of 12.8 kg, what force must be applied to lift the load?
You are running toward an approaching marching band. You are moving at 9.3 m/s and the band is moving at 2.7 m/s
An engine draws energy from a hot reservoir with a temperature of 1250 K and exhausts energy into a cold reservoir with a temperature of 355 K. What is the power output of this engine
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