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Validity and reliability are primarily quantitative research concepts. Morse, Barrett, Mayan, Olson, and Spiers (2002) argue that their exclusion from qualitative research design undermines the credibility and rigor of qualitative research conclusions. Are they correct in this assertion? Why or why not?
A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, How much force is tending to pull Rover forward
Suppose a 1.17×104 kg spaceship left Earth at a speed of 0.90c. What is the spaceship's kinetic energy? Compare with the total U.S. annual energy consumption (about 10^20 J).
Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2. find the magnitude of the contact force between the two blocks
a hockey player hits a puck so that it comes to rest in 10s after sliding 100ft on the ice. determine a the initial
You ski straight down a 44.4° slope, starting from rest and traveling a distance of 12.3 m along the slope. Find your final velocity
The slit spacing is 0.20nm and the wavelength of the light is 600nm. What is the distance from the slits to the screen
A physics professor is pushed up a ramp inclined upward at an angle 28.0 above the horizontal as he sits in his desk chair that slides on frictionless rollers. Use the work-energy theorem to find his speed at the top of the ramp
A low-power laser used in a physics lab might have a power of0.50 mW and a beam diameter of 3.0mm. calculate the average light intensity of the laser beam
Next to music, Greezy's favorite hobby is skydiving. He jumps out of a plane and, after opening his parachute, reaches a constant terminal velocity of 25 m/s. How much time does Greezy have
Presume 8.00 g of hydrogen is separated into protons and electrons. Presume also the protons are placed at the earth's North Pole and the electrons are placed at the South Pole. What is the resulting compression force on the Earth?
A 1.00 cm object is 60.0 cm in front of a diverging lens that has a -30.0 cm focal length. Find the image position and height. Is the image real or virtual? Is the image upright or inverted
A box of bananas weighing 40.0 Newton rests on a horizontal surface. If no horizontal force is applied to the box and the box is rest, find how large is the friction force exerted on the box
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