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Why can you calculate the acceleration due to gravity of a free falling body from either its displacement versus time graph or its velocity versus time graph?
You shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. What is the index of refraction of the plastic object
A toaster operating on 120 V uses a current of 15.0 A. What is the toaster's power consumption, what is the cost of using the toaster for 3.2 min
The supersonic aircraft Concorde has a length of 63 when sitting on the ground on a typical day when the temperature is 13.00. The Concorde is primarily made of aluminium. In flight at twice speed of sound, friction with the air warms the Concorde..
A string is 80.0 cm long and has a mass per unit length of 5.51 × 10-4 kg/m. The tension in the string is 200 N. In the fundamental mode, at what frequency does the string vibrate? Answer A) 376 Hz B) 450 Hz C) 598 Hz D) 702 Hz E) 964 Hz
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 4.0 cm. What is the net electric force acting on particle 3
A charge of 810 C was passed through a wire in 5.70min. What was the average electric current during that interval
A chemistry student with a mass of 75 kg is riding a steadily moving Ferris wheel. What would the normal force be on the student at the top of the wheel if the wheel's velocity were doubled
A soccer ball is lofted toward the goal from a distance of 9.00 m. It has an initial velocity of 12.7 m/s and is kicked at an angle of 72.0 degrees above the horizontal. (a) When the ball crosses the goal line, how high will it be a..
A 170g mass attached to a horizontal spring oscillates at a frequency of 3.70Hz, Determine Amplitude and Phase Constant
Two infinite positively charged plates with a uniform chargedensity of 6.80 μC/m2 are placedparallel to the yz-plane with one plane passing through x = 0.65cm and the other through x = -0.65 cm, as shownin the diagram below.
A fan blade rotates with angular velocity given by ?z(t)= ? ? ? t2, where ? = 4.60rad/s and? = 0.795rad/s3, Calculate the angular acceleration as a function of time
A car of mass m is on a frictionless roller coaster track. How hard does the track push on the car at the top of the loop
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