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A playground merry-go-round of radius 2.00 meter has a moment of inertia I = 290 kg•m2 and is rotating about a frictionless vertical axle. As a kid of mass 25.0 kilogram stands at a distance of 1.00 meter from the axle, the system (merry-go-round and child) rotates at the rate of14.5 rev/min. The kid then proceeds to walk toward the edge of the merry-go-round. Find the angular speed of the system when kid reaches the edge?
rad/s
After a plant or animal dies, its 14C content decreases with a half-life of 5730 years. what is the age of the ancient site
Calculate the equilibrium concentration of dissolved oxygen in 15celcius dgree water at 1atm and again at 3,000m elevation Using Henry's law, P vs z equation
A horizontal pipe carries a smoothly flowing liquid with density 1.27 × 103 kg/m3. What is the pressure difference between location 2 and location 1
Carbon dioxide enters an adiabatic nozzle steadily at 1 MPa and 500°C with a mass flow rate of 6000 kg/h and leaves at 100 kPa and 450 m/s. The inlet area of the nozzle is 40 cm2 Determine (a) the inlet velocity and (b) the exit temperature.
A singly charged positive ion has a mass of 3.20x10^-26 kg. After being accelerated from rest during a potential dissimilarity of 843 V, the ion enters a magnetic field of 0.920 T along a direction perpendicular to the direction of the field. Compute..
A swing ride at a carnival consists of chairs that are swung in a circle by 12.0 meter cables attached to a vertical rotating pole. Find the tension in cable attached to the chair
A 91-kg man’s thighbone has a relaxed length of 0.50 m, across-sectional area of 7.0 x 10^–4 m^2, and a Young’s modulus of 1.1 x10^10 N/m^2. By how much does the thighbone compress when the manis standing on both feet?
A projectile is launched at 15m/s at an angle of 30 degrees above the horizontal from the edge of a cliff. If the projectile lands 10m horizontally from the base of the cliff what is the height of the cliff?
An infinitely long cylinder has a circular cross section of radius a and its axis along the z axis. A steady current I is distributed uniformly over the cross section and is in the positive z direction. Please, read the document carefully, it ..
A block is given an initial velocity of 5.00 m/s up a frictionless 20.0 degree incline. Determine how far up the incline does the block slide before coming to rest
At low frequencies the dielectric constant of a medium is 4.4. The speed of light is 2.998 × 108 m/s. Find the speed of low-frequency radio waves in the medium
The mean free path of nitrogen molecules at 10°C and 1.6 atmis 0.293 x 10-5cm. What is the molecular diameter
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