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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.
Two masses are placed on an airtrack and given initial velocities towards each other. Calculate the impulse acting on mass one during the collision
You are given 35.000 cm of copper wire with diameter 2.0000 mm. It is formed into a circular loop, At what rate is thermal energy generated in the loop
A 5kg sphere moves at 20m/s makes a perfectly inelastic collision with a second sphere that is at rest. What is the mass of the second sphere
A satellite circles the earth in an orbit whose radius is 3.62 times the earth's radius. The earth's mass is 5.98 x 1024 kg, and its radius is 6.38 x 106 m. What is the period of the satellite
A parallel beam of light containing red (660 nm) and blue (470 nm) wavelengths goes from polystyrene to water, What is the angle between the two colors in water
a train started from rest and moved with constant acceleration. at one time it was traveling 35 ms and 160 m farther on
A car travels at a constant speed around a circular track whoseradius is 3.26 km. The car goes once around the track in 253 s.What is the magnitude of the centripetal acceleration of the car?
A 140 g air-track glider is attached to a spring. The glider is pushed in 12.00 cm and released. A student with a stopwatch finds that 9 oscillations take 10.0 s.
A 39-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, How high does she rise during this interval
A man holds a double-sided spherical mirror so that he is looking directly into its convex surface, 35 cm from his face. The magnification of the image of his face is +0.13. What will be the image distance when he reverses the mirror (looking into..
Determine the maximun wavelength of incident radiation that can be used to remove the remaining electron from a singly ionized helium atom He+ (z= 2)
A motor operating on a 260 V source has a 190 V back emf at operating speed and draws a 145 A current. Randomized Variables V = 260 V epsilonb = 190 V If=14.5 A. What is its resistance in Ohm?
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