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a 0.06-kg mass vibrates according to the equation x=0.45cos6.40t, where x is in meter and t is in seconds. Determine
(a) the amplitude,
(b) the frequency,
(c) the total energy, and
(d) the kinetic energy and potential energies when x-0.30 m.
Below are birds-eye views of six identical toy cars moving to the right at 2? Various forces act on the cars with magnitudes and directions indicated below. All forces act in the horizontal plane and are either equivalent or at 45 or 90 degrees to ca..
Find the point of no return for an airport runway of 1.45 miles in length if a jet plane can accelerate at 9.8 ft/s2 and decelerate at 6.13 ft/s2. What length of time is available from the start of the motion in which to decide on a course of actio..
A proton (+1.6 · 10 -19 C) moves 10 cm on a path in the direction of a uniform electric field of strength 3.0 N/C. How much work is done on the proton by the electrical field
A 3.00-m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 0.440 m/s. Calculate the magnitude of the induced emf between the ends of the wire. (in µV)
An object 6 cm high is placed 30 cm from a concave mirror of focal length 10 cm, Calculate size of image
You are standing between two plane mirrors that are parallel to each other. How many total images of you would there be formed by this arrangement
A radio antenna broadcasts a 1.0 MHz radio wave with 29kW of power. What is the wave's intensity 33km from the antenna
Two forces are applied to a tree stump to pull it out of the ground. Force A has a magnitude of 2160 newtons and points 33.0° south of east, while force B has a magnitude of 3160 newtons and points due south. Using the component method, find directio..
Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, Calculate the minimum stopping distance for which the load will not slide forward relative to the truck
What focal length does the lens need. Find out the electrostatic force exerted on one sphere by the other.
A light ray travels inside a large glass block and approached the glass-air interface at some angle relative to the normal (perpendicular to the surface). After entering the air, the light ray's
Two pipes of equal length are each open at one end. Each has the fundamental frequency of 500 Hz at 325 K. In one pipe the air temperature is increased to 330 K. If the two pipes are sounded together, what beat frequency results.
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