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A ship travels 80 km due north on the first day of a voyage, 50 km northeast on the second day, and 90 km due east on the third day. Find the resultant displacement by the polygon method. Please show your work!
A railroad car of mass 2.1 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
The surface tension of water is 0.0730 N/m. What is the height of the water in a capillary tube of diameter 1.00 mm
An object with a mass of 84.0 g displaces 240.0 ml of water when it is completely immersed. What is the buoyant force on the mass
Illustrate what would be the relative strengths and weaknesses of this study? What ethical considerations must be taken into account while undertaking this study?
Two small plastic spheres each have a mass of 1.9g and a charge of -52.0 nC. They are placed 3.0cm apart (center to center). A) What is the magnitude of the electric force on each sphere
A certain string just breaks while it is under 25 N of tension. A boy uses this string to whirl a 0.75-kg stone in a horizontal circle of radius 2.00 m. The boy continuously increases the speed of the stone. At about what speed will the string bre..
You drop 320 g of solid ice at ?35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice all melts, Find the final temperature of the system
A converging lens has a focal length of f = 26 cm. An object is placed 39 cm from the lens. Find out the size of an image in cm if the object has a height of 5 cm. express answer with one decimal place.
A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.
An object is placed to the left of a convex lens and on the optical axis. What is the magnification of the image formed by the lens
What is the mass of a puppy that sits on the other piston and balances the person?
Three equal point charges, each with charge 1.65 , are placed at the vertices of an equilateral triangle whose sides are of length 0.500 . What is the electric potential energy of the system
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