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A 50.0 g object is attached to ahorizontal spring with a force constant of 5.0 N/m and released from rest with an amplitude of25.0 cm. What is the velocity of theobject when it is halfway to the equilibrium position if the surface is frictionless
The earth orbits the sun in an approximately circular orbit of radius 1.496x10^11 m, Use these data to determine the mass of the sun
A 1.0-cm diameter pipe widens to 2.0 cm and then narrows to 5.0 mm. Liquid flows through the first segment at a speed of 4.0 m/s. What is the volume flow rate through the pipe
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. What is the mass of the wheel
A certain source of soundwaves radiates uniformly in all directions. What is the total acoustic power output of the source
How much would it cost just to keep the hot water inside the heater for one week? d)Suppose that you wrap the hot water heater on all sides with a 10 cm thick blanket of fiberglass insulation which has a thermal conductivity of 0.04 W/(m K).
A pipe is horizontal and carries oil that has a viscosity of 0.15 Pa · s. The volume flow rate of the oil is 4.6 10-5 m3/s. What is the absolute pressure at the input end
Each plate of a parallel-plate capacitor is a square of side 3.89 cm and the plates are separated by 0.539 mm. Find the electric field strength inside the capacitor
A student drops two metallic objects into a 120-g steel container holding 150 g of water at 25°C. What is the mass of the aluminum chunk
The concrete wall of a building is 0.11 m thick. The temperature inside the building is 23.2°C, while the temperature outside is 0.0°C. Heat is conducted throughout the wall.
To make a simple microscope a student places two converging lenses of +20 D at opposite ends of a 34 cm long tube. How far should an object be placed from the objective lens
The surface of the Sun is approximately at 5700 K, and the temperature of the Earth’s surface is approximately 280 K. What entropy change occurs when 860 J of thermal energy is transferred by heat from the Sun to Earth?
a truck covers 42.0 m in 8.00 s while smoothly slowing down to final speed of 2.50 ms.a find its original speed.b find
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