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You are interested in obtaining information about the performance of students in your statistics class and seeing how this performance is affected by several factors such as sex. To do this you are going to give a questionnaire to all students in the class. Give two questions for which the response is categorical and two questions for which the response is quantitative. For the categorical variables, give the possible values.
A convex lens with f1= 19.9 is mounted 40.0cm to the left of a concave lens. When an object is placed 30.8cm to the left of the convex lens, What is the focal length of the concave lens
A 5-kg rock is dropped off a 30-m high building. If the rock is dropped from rest, what is the average power supplied by gravity
had some difficulty getting the right answer for this question wondering if someone could help me out thanks Some of the X-rays produced in an X-ray machine have a wavelength of 1.8 nm
A metallic wire has a diameter of 4.12 millimeter. When the current in the wire is 8 amp, the drift velocity is 5.40 x 10-5 m/s. Determine what is the density of free electrons in the metal
A 0.200-kg cube of ice (frozen water) is floating in glycerine. If the ice completely melts, by what distance does the height of liquid in the cylinder change?
In a double slit experiment with the monochromatic visible light(λ=630nm), the separation among the slits is 840µm. It is found that 5 bright fringes are observed within the central diffraction maximum. What is the estimated width of each slit?
A parallel-plate capacitor is constructed from two 13cm X 13cm electrodes spaced 0.90mm apart. The capacitor plates are charged to ± 20nC, How much energy is stored in the capacitor
q1. an 920 n sled is pulled a distance of 197 m. the task requires 1.20 104 j of work and is completed through pulling
Calculate the magnitude, the direction of resultant force and the coefficient of kinetic friction.
A(n) 84 g arrow is fired from a bow whose string exerts an average force of 110N on the arrow over a distance of 80cm. What is the speed of the arrow as it leaves the bow.
A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
Emily throws her calculator straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. What is the magnitude of the calculator's displacement
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