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Problem: A particle moves along the x axis. Its position as a function of time is given by x = 6.8 t + 8.5 t2, where t is in seconds and x is in meters.
Part I: What is the acceleration as a function of time?
I need help to find the acceleration as a function of time.
A siren emitting a sound of frequency 1000 Hertz moves away from you towards the face of a cliff at a speed of 10 m/s. Compute the beat frequency between the two sounds
A small block of mass m slides along a frictionless loop-the-loop track. If it starts from rest at point P. What is the resultant force at point Q
7.22 x1013 electrons flow through a transistor in 3.55 ms. What is the current (in mA) through the transistor
A series circuit with a 12kΩ resistor, a 12.0 V battery and a capacitor has a time constant of 55 μs. (a) Compute the capacitance of the circuit? (b) Compute the time it takes for the energy stored in the capacitor to be two thirds of its maximum val..
Compute the edge length of a cube that has the same volume as a sphere of radius 5.0 cm. How much greater is the surface area of the cube than that of the sphere (in cm2)
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1230 Hz, What is the speed of the bird
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q1. a juggler performs in a room whose ceiling is a height 3.0 m above the level of his hands. he throws a ball upward
A 738-N man stands in the middle of a frozen pond of radius 4.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. How long does it take him to reach the south shore
A lidar (laser radar) gun is an alternative to the standard radar gun that uses the Doppler effect to catch speeders. A lidar gun uses an infrared laser and emits a precisely timed series of pulses of infrared electromagnetic waves.
A package is dropped from a helicopter moving upward at 15 m/s. If it takes 24 s before the package strikes the ground, how high above the ground was the package
Two equally charged spheres of mass 1.0 g are placed 2.0 cm apart. When released, they begin to accelerate at 655m/s^2. What is the magnitude of the charge on each sphere
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