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The Olympic Flame at the 1992 Barcelona Olympics was lit by a flaming arrow shot from a point 60 meter horizontally and 24 meter vertically from the flame. Find the initial speed necessary for the arrow to reach the flame at the peak of its trajectory. Ignore air resistance.
A rectangular block of wood (M = 219 kg) floats on a calm fresh water lake with do = 22.7 cm below the water. Find the mass of the dog
A bullet of mass 0.0022 kg initially moving at 496 m/s embeds itself in a large fixed piece of wood and travels 0.64 m before coming to rest. Imagine that an acceleration of the bullet is constant.
A body passes a certain point A of the straight line on which it is moving with uniform accelaration. One second aterwards it is 11m beyond A and in the nest second, it travels 13 m. Find the velocity it has when passing A, and how far it travels in ..
A proton with a mass of 1.67 x 10^-27 kg and charge on +1.6 x 10^-19 C, Find the time for the proton to make on complete circular orbit
Ordinary glasses are worn in front of the eye and usually 2.00cm in front of the eyeball. What is their power in diopters
The orbits of synchronous communications satellites have been chosen so that viewed from Earth they appear to be stationary. Find the radius of the orbits
A large parallel plate capacitor has plate separation of 1.01 cm and plate area of 231 cm2. How much work is done on the capacitor as the plate separation is increased to 2.02 cm
Suppose you want a capacitor bank with a total capacitance of 1.450 F and you possess numerous 2.50 mF capacitors. What is the smallest number you could hook together to achieve your goal
Consider a line that is 1.4 m long. A moving object is somewhere along this line, but its position is not known. Find the minimum uncertainty in the momentum of the object
A 45.8-kg girl is standing on a 161-kg plank. Both originally at rest on a frozen lake that constitutes a frictionless, flat surface. What is the velocity of the plank relative to the ice surface
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
A steel ball of mass 0.400 kg is fastened to a cord that is 80.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 3.00 kg steel block initially at rest on a fric..
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