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Physics, 29.11.2019 01:31 jacobdobson5856
Yellow light travels through a certain glass block at a speed of 1.97 × 108 m/s. the wavelength of the light in this particular type of glass is 3.81 × 10−7 m (381 nm). what is the frequency of the yellow light in the glass block? answer in units of h
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Physics, 21.06.2019 22:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
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Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
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Yellow light travels through a certain glass block at a speed of 1.97 × 108 m/s. the wavelength of t...
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