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An object is projected at 36.9 degrees above the horizontal. The potential energy of the object at the top of the trajectory is 144j. What is the kinetic energy at the top?
Two objects with masses of 2.10 kg and 6.80 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string.
A block of wood with volume V floats in water with 0.62V submerged. In oil the block floats with 0.86V of its volume submerged. Find the density of the wood
A spring is oscillating with a frequency of 1.7Hz. 3.9 seconds after the spring is released it is -20cm from equilibrium. Find the amplitude of the spring
The coefficient of kinetic friction between a refrigerator (mass 100kg) and the floor is 0.20, and the coefficient of static friction is 0.25. If you apply the minimum force needed to get the refrigerator to move, what will the acceleration be?
Four objects are situated along the y axis as follows: a 2.07 kilogram object is at +2.92 meter, Find where is the center of mass of these objects
A 110 grams sample of water at 30 degrees Celcius is heat to steam at 130 degrees Celcius. how much heat is absorbed
A 17.0-g piece of Styrofoam carries a net charge of -0.75 µC and is suspended in equilibrium above the center of a large, compute the charge per unit area on the plastic sheet
when builders were constructing a sidewalk they forgot to include an expansion joint between two of the segments l 1.4
planet orbits a star, in a year of length 2.34 x107 s, in a nearly circular orbit of radius 1.78 x1011 m. With respect to the star, decide (a) the tangential speed of the planet, (b) the angular speed of the planet, and(c) the magnitude and direction..
The electric potential at a position located a distance of 19.8 mm from a positive point charge of 7.80×10-9C, Calculate the value of the second charge
Find the fundamental frequency and second harmonic if the tension in the wire is increased to 112 N. (Assume the wire doesn't stretch or break.
a c-glass filament reinforced epoxy composite contains 65 vol filaments and has a density of 2.24 mgm3. if the c-glass
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