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Suppose a soccer player kicks the ball from a distance 31 m toward the goal. Find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the initial direction to be 44° above the horizontal.
Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Determine the volume of each cube.
The motion of the pistion o fan automobile engine is SHM. if the stroke of an engine (twice theamplitude) is 4 in. and the angular velocity is 3600 rev/mincompute the acceleration of hte pistion at the end of itsstroke
A speedboat starts from rest and accelerates at +2.15m/s2 for 8.35 s. At the end of this time, the boatcontinues for an additional 8.62 s with an acceleration of +0.629m/s2.
A block of mass 1.60 kg is connected to a spring of spring constant 149 N/m which is then set into oscillation on a surface with a small coefficient of kinetic friction. find the total energy was lost in the first full oscillation
A student ties a 500 g rock to a 1.0 m long string and swings it around her head in a horizontal circle. At what angular velocity, in rpm, does the string tilt down at a 10 degree angle
A block is attached to a ceiling by a spring fo force constant k. When pulled down and released the block undergoes simple harmonic motion. The amplitude is 2, and the frequency is 1/(16pi). If the mass of the block is 3.14 kg, what is the spring ..
determine the average value of the translational kinetic energy of the molecules of an ideal gas at a 12.0degc and b
A hypothetical 40cm long arm is assumed to be weightless. What is the maximum weight that can be held in the hand if the muscle is attached 1 cm from the below
A 3.00 kg block starts from rest at the top of a 29.5° incline and slides 2.00 m down the incline in 1.25 s. Find the frictional force acting on the block
A 10 meter length of wire consists of 5.3 meter of copper followed by 4.7 meter of aluminum, both of diameters 1 millimeter. Determine the total resistance of the wire
A hockey player is standing on hisskates when an opposing player skates by with the puck, movingwith a constant speed of 12 m/s. After 3.0 s, the first playermakes up his mind to chase his opponent and starts acceleratinguniformly at 3.8 m/s2.
the base of a record player is a disk that has a mass of 2 kg and a diameter of 34 cm. a child spins it so it rotates
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