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A hotel elevator ascends 200 m with maximum speed of 5 m/s. Its acceleration and deceleration both have a magnitude of 1m/s^2. Find how long it takes to make the complete trip from top to bottom.
You have two capacitors: C1=410 nF and C2=260nF and a DC battery (Vbatt=9.00 volts). The two capacitors are connected to the battery in a series.
A 9200 kg boxcar traveling at 18 m/s strikes a second boxcar at rest. The two sticktogether and move off with a speed of 12m/s. What is the mass of the second car
A 3.9 kg stone is tied to a 5.8 m long string and swung around a circle at a constant angular velocity 1.7 1/s. Find the magnitude of the torque about the origin
The escape speed from a distant planet is 39 km/s. If the acceleration of gravity on the planet is 14.5 m/s^2, what is the radius of the planet
A mass of 6.70 kg is suspended from a 1.15 m long string. It revolves in a horizontal circle, Calculate the angle between the string and the vertical
A space traveler weighs 565 N on earth. What will the traveler weigh on another planet whose radius is 3 times that of earth and whose mass is twice that of earth.
A camera's flash uses the energy stored in a 270 microF (uF) capacitor charged to 190 V. The current in the charging circuit is not to exceed 25 mA. What's the resistance in the charging circuit
The two blocks, m1 = 1.40 kg and m2 = 5, are connected by a mass less rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg.
You and your friends find a rope that hangs down 18m from a high tree branch right at the edge of a wide river. How long must you hang on if you want to stay dry
One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. calculate the component of the earth magnetic field perpendicular to the entering electron beam
What mass (in grams) of steam at 100°C must be mixed with 251 g of ice at its melting point, in a thermally insulated container, to create liquid water at 66.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, an..
Nathan walks due east a certain distance and then walks due south twice that distance. He finds himself 15 km from his starting position
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