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Two forces on the object are = 4.3 at 80 below the +x-axis and = 4.3 at 34 above the -x-axis. Is there a third force on the object?
1. Find the magnitude of the force.
2. Find the direction of the force.
A 0.8-kg mass is hanging from a spring with spring constant 19 N/m. Then the mass is displaced from the equilibrium by 2.3 cm and let go. What is the resulting period of the oscillation
A solid cylinder with a radius of 25 cm and a mass of 4.4 kg is rotating counterclockwise with an angular speed of 0.5 revoultions per second just above a flat surface. What torque due to friction is exerted on the cylinder
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, what was the decibel level on Rodriguez Island
A spacecraft flies towards the Earth at a speed of 0.8c and shines a laser at an observer on Earth. At what speed would the laser light be moving
A man does 4,735 J of work in the process of pushing his 2.70 103 kg truck from rest to a speed of v, over a distance of 25.0 m. determine the horizontal force exerted on the truck
A sanding disk with rotational inertia 5.4 x 10-3 kg·m2 is linked to an electric drill whose motor delivers a torque of magnitude 10 N·m about the central axis of the disk. About that axis and with torque applied for 72 ms, what is the magnitude o..
q1. over a 30-day period a power plant generates an average of 751 mw of electrical power and 1225 mw of waste heat and
q1. an object is hung from a spring set into vertical vibration and immersed in a beaker of oil. its motion is graphed.
The telescope at a small observatory has objective and eyepiece focal lengths of 16.0 m and 12 cm, respectively. determine angular magnification of the telescope
how much time passes before the brick lands on the ground.
A 50 g horizontal copper rod has a length of 1.0 m. Calculate the minimum current in the rod so that it will float in a horizontal magnetic field of 2.0 T
A certain heat engine does 8.0 kJ of work and dissipates 9.00 kJ of waste heat in a cyclical process. What was the heat input to this engine
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