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a curve in a road forms part of a horizontal circle. as a car goes around it at constant speed of 14m/s the horizontal total force on the driver has magnitude 147n, what is the total horizontal force at the same curve with the speed 17.6m/s find the magnitude and direction.
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 302 K and the refrigerator is kept at a temperature of 276 K. find the coefficient of performance of this refrigerator
Suppose you have a solution that contains 0.0490 M Ca2 and 0.0940 M Ag, When the second cation just starts to precipitate, what percentage of the first cation remains in solution
A charge of -7.1 micro-Coulombs is placed at x = 0, y = 0. A charge of +18.7 micro-Coulombs is placed at x = 0, y = +30 cm. Another charge of +31.3 micro-Coulombs is placed at x = +31 cm, y = 0 cm.
What minimum constant acceleration does the aircraft require if the aircraft is to be airborne after a takeoff run of 222m.
With what frequency should the tip be tapped to make the strip oscillate with maximum amplitude?
Kim says that she was less than 10 ft away from the president when she took a picture of him with her 53-mm focal length camera lens. How close was Kim to the president when she took the picture
A spear fisherman estimates that a trout is 1.6 m below the water's surface. What is the actual depth of the fish
A 20.0-kg box rests on a horizontal surface. The coefficient of static and kinetic friction between the box and the surface are 0.30 and 0.10 respectively. obtain the friction force between the box and the surface
A 135-kg platform oriented horizontally consists of a uniform disk of radius 1.59 m and can rotate about the vertical axis through its center. Find the moment of inertia of this system
A mirror produces an image of the sun, and the image is located 0.9800 m from the mirror. What is the object height ho of the tree
Consider the earth following its nearly circular orbit (dashed curve) about the sun. find the size of the gravitational force acting on the earth
q1. a 77 person stands on the uniform ladder 4.0 long that weighs 100. the floor is rough hence it exerts both a normal
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