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A 20-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10 s is required for the package to travel 5 m up the incline. The static and kinetic coefficients of friction between the package and the incline are both equal to 0.3.
A bungee cord is stretched between two poles with a force of 447 N, What is the velocity of a wave on this bungee cord
A force does +130J of work while it acts on a moving object and its direction is in the same direction as the object's displacement. How much work does this force do as the angle between it and the object's displacement is 56°.
question1a planet of mass 8 times 1024 kg is at location lsaquo minus3 times 1011 6 times 1011 0 rsaquo m. a star of
Consider a reference frame associated with a free falling cabin, which is moving with an acceleration of g = 9.8m/s^2. At time t=0 the cabin is at rest. Is this reference frame inertial
The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-5.30 107) t 2 + (3.15 105) t, where v is in meters per second and t is in seconds.
A 0.22kg arrow with a velocity of 15.00 m/s to the west strikes and pierces the center of a 3.00 kg target. What is the final velocity of combined mass? Answer in m/s.
a square loop of wire with sides of length 40 cm is in a uniform magnetic field perpendicular to its area if the
A hammer taps on the end of a 4.00-m-long metal bar at room temperature. What is the speed of sound in this metal
An electron is initially moving at a speed of 1740 m/s directly toward a long wire that has 2.00 A of current flowing through it. What are the direction and amount of the force
Determine the minimum thickness of a soap film (n= 1.80) that will result in constructive interference of a specific red line with wavelength 610 nm
A plane traveling at 432km/h flies in a circle with a radius of 3820m. Calculate how long it takes to go once around the circle
Use the worked example above to help you solve this problem. An object 3.08 cm high is placed 19.3 cm from a convex mirror with a focal length of 7.80 cm. Find the magnification of the mirror
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