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Question: Three rocks of equal mass are thrown with identical speeds from the top of the same building (identical height). Rock X is thrown vertically downward, rock Y is thrown vertically upward, and rock Z is thrown horizontally. Which rock has the greatest speed just before it hits the ground? Why? Assume air resistance is negligible.
You are asked to design a parallel-plate capacitor having a capacitance of 1 F and a plate separation of 1.00 mm. compute the required surface area of each plate. Is this a realistic size for a capacitor.
A 58.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.38 102 m/s from the top of a cliff 156 m above level ground, What is the initial total mechanical energy of the projectile
One mole of helium atoms has a mass of 4 grams. If a helium atom in a balloon has a kinetic energy of 1.224e-21 J, what is the speed of the helium atom
A charge Q is located inside a rectangular box. The electric flux through each of the six surfaces of the box is, What is Q
a lead wire of cross-sectional area 0.980 mm2 is at a temperature of 2.00 k and carries a current of 0.490 a. a find
Find the greatest height of the rock as measured from the base of the cliff.
A block of mass 0.35 kg oscillates in SHM on a spring with an amplitude of 0.96 m. The maximum acceleration of the block is 2.7 m/s2. What is the total energy of the system?
A 0.36-kg object connected to a light spring with a force constant of 24.4 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
You are traveling in a convertible with the top down. The car is moving at a constant velocity of 12.8 m/s, How far has the car moved when you get a chance to catch the tomato
What is the new velocity of the plane id you were to add these vectors.
If the speed of sound is v = 345 m/s, what is the range of wavelengths of sound which the human ear can detect
Determine the minimum force P applied to the wedge required to start raising the crate. The crate weighs 154 lb and the coefficient of static friction for all surfaces is μs = 0.2. Neglect the weight of the wedge.
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