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John measured the thickness of a book using a measuring stick. He obtained the following values (in inches): 2.38; 2.36; 2.58; 2.35; 2.37; 2.40; 2.38; 2.34; 2.35; 2.41; 2.37; 23.45.
(a) Which of the given data values are probably due to either systematic error or a mistake? Why?
(b) Calculate the mean thickness of the book. Include measurements based on your answer to the question #1.
An alpha particle (m = 6.7 x 10^-27kg, q = +3.2 x 10^-19C) has a speed of 30km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle throughout this motion. Find out the electric potential difference.
An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other losses account for 60.0 percent of the energy usage, what altitude change can a rider achieve when driving in hilly terrain, if the rider and scoote..
500 grams of water initially at 3.00 c and a 10.0 gram ice cube at 0.00c are placed together in an insulated styrofoam cup of negligible heat capacity. find the final temperature of the contents of the cup
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A 4.0 kg ball is on the end of a 1.6 m rope which is fixed at O. The ball is held at point A, with the rope horizontal, and is given an initial downward velocity. What is the initial velocity of the ball
A current of 0.300 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heart beat, how many conduction electrons pass through your heart
If a metal wire carries a current of 23.0 mA, how long does it take for 12.0×1020 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10-19 C.
A double-slit experiment using light of wavelength 580.nm produces an interference pattern on a screen. The slit separation is 1.39?10?2mm. find the distance between the slits and the screen
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.10 m2 and whose thickness is 7 mm. what is the percentage lost by the window
If a piece of irion (c=450 J/ kg C) at 65 C is dropped into 0.250 kg of ethyl acohol at 25 C and the final temperature of the two comes to 35 C what was the mass of the piece of iron
Two forces act on an object. A 36-N force acts at 225o. A 48-N force acts at 315o. What would be the magnitude and direction of their equilibrant, What is the acceleration of the spider
What are new charge on spheres - Two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa
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