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Why is the metric system used in other places in the world instead of the customary system, and vice versa.
A 40-kg firl and an 8.4-kg sled are on the surface of a frozen lake, 15 m apart. By means of a rope the girl exerts a 5.2-N force on the sled, How far from the girl's intial position do they meet
A 2.4 kg breadbox on a frictionless incline of angle %u03B8 =43 is connected, by a cord that runs over a pulley, What is the speed of the box when it moves 10 cm down the incline
Consider an ideal gas at 27 degree C and 1 atm. To get some idea how close these molecules are to each other, What is the length of an edge of each cube if adgacent cubes touch but not overlap
To examine a particular blood sample in biology lab, a student uses a compound microscope set to have a magnification of -4530. What is the distance between the blood sample and the objective lens
A uniform plate of height 1.300m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 0.700 x2. The plate has a mass of 9.99 kg. Discover the moment of inertia of the plate regarding the y-axis.
Calculate the true mass (that it would have in the absence of air) of a piece of aluminum whose apparent mass is 2.0000 kg
A convex mirror has a focal length of -30.0 cm. A 15.0-cm-tall object is located 30.0 cm in front of this mirror. determine the location and size of the image
A red blood cell travels at speed 0.400 m/s in a large artery. A sound of frequency 2.00 x106 Hz enters the blood opposite the direction of flow. The speed of sound in the blood is 1500 m/s. Determine the frequency of sound reflected from the cell an..
A boy of mass 35 kg and a girl of mass 40 kg are skating towards each other with speeds of 2.5 m/s, and 2.0 m/s respectively. Assume that there is no friction, and find their combined velocity after they meet
A cockroach of mass m lies on the rim of a uniform disk of mass 2.42 m that can rotate freely about its center like a merry-go-round. Find the angular velocity of the cockroach-disk system
An electron passes through a point 3.01 cm from a long straight wire as it moves at 35.3% of the speed of light perpendicularly toward the wire. Find the magnitude of the electron\'s acceleration at that point
What is the energy released in this nuclear reaction 47Be + 01n ? 37Li + 11H
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