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On a 20-mile bike ride, you ride the first 10 miles at an average speed of 7mi/h a)What must your average speed over the next 10 miles be to have your average speed for the total 20 miles be 5m/h? b)What must your average speed over the next 10 miles be to have your average speed for the total 20 miles be 13m/h? c)Given this average speed for the first 10 miles, can you possibly attain an average speed of 14for the total 20-mile ride?
An electric field of intensity 3.4 kN/C is applied along the x-axis. compute the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true.
When in deep space, the block accelerates at 4.2 m/s^2 even as a 120 N force is applied to it. The coefficient of static friction for a particular plane and this block is 0.31. What angle can this plane make with horizontal before the object starts t..
A jogger jogs around a circular track with the diameter of 325 m in 16 minutes. What was the jogger's average speed in m/s.
Above the surface of the Earth, the magnitude of the acceleration due to gravity is inversely proportional to the square of the distance from the Earth's center.
A crate of 30.2- tools rests on a horizontal floor. You exert a regularly increasing horizontal push on it and observe that the crate just begins to move while your force exceeds 319. After that you must reduce your push to 227 to keep it moving at a..
A loudspeaker of mass 19.00 is suspended the distance of = 1.80 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.50. What is the tension in each of the cables.
A parallel-plate capacitor is formed from two 4 electrodes spaced 1.20 mm apart. The electric field strength inside the capacitor is 1.29x 10^6. What is the charge (in nC) on each electrode.
A 3.2 mass attached to a spring with a spring constant of 114 is oscillating in a vat of oil, which damps the oscillations. If the damping constant of the oil is 10kg/s, how long would it take the amplitude of the oscillations to decrease to 1.0% ..
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
Consider an experiment where a subject lands during two conditions from a height of 0.2 m. During the first landing condition, the subject lands 'stiffly' (e.g., very little knee flexion).
What is the magnitude of the current in the wire as a function of time?
A certain telescope has an objective of focal length 1580cm. If the Moon is used as an object, a 1.4 cm long image formed by objective corresponds to what distance, in miles, on the Moon? Suppose 3.8 multiplied by 108 m for the Earth-Moon distance..
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