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Question: A gravitational attraction exist between two objects with a force of 20 units if the distance seperating the decreases by one half what would be the resulting gravitational attraction?
A 170? resistor, a 9.00×10?2?F capacitor, and a 350mH inductor are connected in series to a voltage source with amplitude 240V, What is the resonance angular frequency
A spider hangs from a strand of silk whose radius is5.8x10-6 m. The density of the silk is 1100kg/m3. When the spider moves, waves travel along thestrand of silk at a speed of 310 m/s. Determine the mass of the spider.
After the collisions the clay-rod system has an angular velocity ω about the pivot. With respect to the pivot point O, elucidate the magnitude of the initial angular momen-tum Li of the clay-rod system?
When the water turns to ice during the night, heat is free into the plants, thereby giving them a measure of protection against the falling temperature. Assume a grower sprays 7.64 kg of water at 0°C onto a fruit tree.
A village maintains a large tank with an open top, containing water for emergencies. The water can drain from the tank through a hose of diameter 6.65 cm. The hose ends with a nozzle of diameter 2.40 cm. A rubber stopper is inserted into the nozzl..
Force from crutches. A patient with a broken leg stands using a pair of crutches. The crutches support 75% of the 81 kg patient's weight. Find the force each crutch applies to the patient
2 blocks are sliding to the right across a horizontal surface. In case A, the mass of each block is 3.0 kg. Derive an expression for the contact force and acceleration
a 1200kg cannon is placed on a 12.0m tall tower. it fires a 72.0kg cannon ball that lands 81.3m away from the base of
Ball of mass M attached to strong of length L moves in circle in vertical plane. At top of circular path tension in string is 2 x weight of ball. find time it takes ball to reach the ground
An optical fiber is 1.0 meter long and has a diameter of 20 mm. Itsends are perpendicular to its axis. Its index of refraction is 1.30. What is the maximum numberof reflections a light ray entering one end will make before it emerges from the othe..
The nucleus of the hydrogen atom has a radius of about 1.1 x 10-15 m. find the percentage of the volume of the atom that is occupied by the nucleus
a research submarine has a 40cm diameter window that is 8.2cm thick. the manufacturer says the window can withstand
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