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A block of wood is floating in water. The volume of the block is 0.01 m3. A force is pushing on the top of the block so that the top surface of the block is just at the level of the water. What is the magnitude of the force? The density of the wood is 0.5*103 kg/m3 and the density of the water is 1.0*103 kg/m3.
A 16 cm x 16 cm square loop of wire lies in the xy-plane with its bottom edge on x-axis. The resistance of the loop is 0.490 ohms. A magnetic field parallel to the z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds...
A block of mass 1.60 kg is connected to a spring of spring constant 149 N/m which is then set into oscillation on a surface with a small coefficient of kinetic friction. find the total energy was lost in the first full oscillation
question during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 34.7 rads. find
A block starts from rest at the top of a 30.0° inclined frictionless plane and after travelling 1.00 m encounters a spring, how much would the block compress the spring
Now solve for the integrated rate laws that predict the concentrations of the four products as functions of time, and predict the Final concentrations of each product in the long-time limit. (Note that without reverse reactions the Final concentra..
A radioactive material produces 1200 decays per minute at one time, and 6 h later produces 300 decays per minute. What is its half-life?
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.87 Ã- 10â€"14 J/m3
A convex lens is held over a piece of paper outdoors on asunny day. When the paper is held 26 {\rm cm} below the lens, the sunlight is focused on the paper and the paperignites. What is the focal length of the lens?
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver, What are the magnitude and direction of his acceleration
A 43.0-N child is in a swing that is attached to ropes 1.60 m long. Find the gravitational potential energy associated with the child relative to her lowest position at the following times.
A ray of light is incident on a flat surface of a block off utilize quartz that is surrounded by water. The angle of refraction is 22.6°. Find the angle of reflection.
The electric field at a point in space is E? =( 600i^+ 600 j^)N/C. What is the magnitude of the proton's acceleration
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