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In a regression of Y on the two explanatory variables X1 and X2, the F ratio was found not to be significant. Neither t ratio was found to be significant, and R2 was found to be 0.12. Do you believe that multicollinearity is a problem here? Explain.
An object, A, with+8.25x10^-6 C charge, has two other charges nearby. Object B, -3.5x10^-6 C, is 0.030 m to the right. Object C,+2.50 x10^-6 C, is 0.050 m below. What is the net force and the angle on A?
The treasure map in the figure gives the subsequent directions to the buried treasure: "Start at the old oak tree, walk due north for 510 paces, then due east for 100 paces. Dig." However when you arrive, you find an angry dragon just north of the tr..
Two harmonic oscillators A and B, of mass m and spring constant ka and kbm respectively, are coupled together by a spring of spring constant kc. Find the normal frequencies w' and w'' and describe the normal modes of oscillation if kc^2 = kakb.
Unpolarized light of intensity 0.75 mw/m2 is incident on the first of two polarizing lenses. The two lenses are oriented 37o apart. Compute the intensity of the light between the two polarizing lenses.
In a physics lab, you attach a 0.200-kg air-track glider to the end of an ideal spring of negligible mass and start it oscillating. Find the spring force constant
The intensity of a lightbulb with a resistance of 160 ohms is controlled by connecting it in series with an inductor whose inductance can be varied from L = 0 to L sub max. What is the average power dissipated in the lightbulb when L = 0
A uniform solid sphere rolls down an incline. (a) What must bethe incline angle if the linear acceleration of the center of the sphere is to have a magnitude of 0.10g?
Your roommate is working on his bicycle and has the bike upside down. He spins the 56.0cm -diameter wheel, What is the pebble's acceleration
A laser beam produces light of wavelength 632.8 nm in vacuum. what is the index of refraction of the syrup solution
A small sphere (emissivity = .9, radius = r1) is located at the center of a spherical asbestos shell (thickness = 1cm, outer radius = r2). The thickness of the shell is small compared to the inner and outer radii of the shell.
The human eye can detect light by an intensity as low as about10–9 W/m2. A typical large galaxy, such as our own Milky Way, radiates energy at the rate of about 4.*1036 W. What is the maximum distance from earth of a typical galaxy that can be seen w..
a 2.00-in diameter rod 15 ft long elongates 0.12 in under a load of 60 kip. the diameter of the rod decreases 0.0004 in
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