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Q. On August 20, 1989, in Cologne, West Germany, Said Aouita of Morocco also established a world record when he ran the 3000. m run in 7.00 minutes, 29.45 seconds. What was his average speed (in m/s) for the race?
Q. An electron starts from rest 33.5 cm from a fixed point charge with Q = -0.145 µC. How fast will the electron be moving when it is very far away?
A compound microscope has an objective lens of focal length 10.50 with an eyepiece of focal length 14.80, and it produces its final image at infinity. The object to be viewed is placed 2.00 beyond the focal point of objective lens.
A 4.25 bullet traveling horizontally with a velocity of magnitude 375 is fired into a wooden block with mass 1.10 , initially at rest on a level frictionless surface. The bullet passes by the block and emerges with its speed reduced to 110 .
What stage of the scientific method would someone be at if they make a prediction that drinking alcohol will make people more violent throughout a sporting event.
What is velocity relative to the ice surface
How much heat does it take to enhance the temperature of 8.00 of an ideal monatomic gas from 22.0 to 61.0 if the gas is held at constant volume.
A hot ( ) lump of metal has a mass of 250g and a specific heat of 0.25 . John drops the metal into a 500g calorimeter containing 75g of water at . The calorimeter is constructed of a material that has a specific heat of 0.10 . When equilibrium is ..
The 4{rm kg} block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended and the tension in the upper string is 83N.
What centripetal force does an 80-kg passenger experience when seated 12 m from the center of the Ferris wheel whose angular speed is 0.50 rad/s.
Concept to find certain type of electronic devices & circuits.
What is the magnitude of the second charge.
how to compute the fraction of silver in the crown.
A 1300 {rm kg} car rolling on a horizontal surface has speed v = 64 km/h when it strikes a horizontal coiled spring and is brought to rest in the distance of 2.80 m.
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