A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface. What compression of the spring would result in the mass attaining double the kinetic energy received in the above situation?
a. 1.41d
c. 2.00d
b. 1.73d
d. 4.00d
A
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When air resistance is a factor, maximum range is achieved when the projection angle is
A) less than 45.° B) 45.° C) greater than 45.° but not 90.° D) 90.°
In a single-slit diffraction experiment, a beam of monochromatic light passes through a slit of width 11.0 ?m. If the first order dark fringe of the resulting diffraction pattern is at an angle of 4.61°, what is the wavelength of light?
A) 884 nm B) 301 nm C) 602 nm D) 402 nm E) 201 nm
In a two-slit experiment, the slit separation is 3.00 × 10-5 m. The interference pattern is recorded on a flat screen-like detector that is 2.00 m away from the slits
If the seventh bright fringe on the detector is 10.0 cm away from the central fringe, what is the wavelength of the light passing through the slits? A) 100 nm B) 204 nm C) 214 nm D) 224 nm E) 234 nm