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Sarah's twist angular momentum increases from 0 to 50 kg*m^2/s in 0.25 s as she initiates a twisting jump on the ice. During this 0.25 s, her moment of inertia about her twist axis is 2.2 kg*m^2.
How fast is Sarah's twist angular velocity at the end of the 0.25 s?
In an L-R-C series circuit, 305 , 0.401 , and 5.98×10-8 . When the ac source operates at the resonance frequency of the circuit, What is the amplitude of the voltage across the resistor
A particle of mass 0.450 kg is attached to the 100-cm mark of a meter stick of mass 0.175 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
An ideal gas has a pressure of 1.0 atm, a volume of 25.0 L at a temperature of 30 deg C. How many molecules are there in the gas
A simple pendulum is made from a 0.691-m-long string and a small ball attached to its free end. how much time elapses before it attains its greatest speed
A length of aluminum wire has a resistance of 10.0 ? at 32.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to 26.2 ?. find the temperature of the oven
Phil is standing on a third floor balcony, 10m above the ground. Where does the ball hit the ground
An AC voltage with an amplitude of 114 V is applied to a series combination of a 247 ?F capacitor, Calculate the power dissipated by the circuit at a frequency of 60.0 Hz
A 16 kg steel ball is launched from a cannon at an angle of 20 degrees above the horizontal. The cannon exerted an average force of 1200 Newtons on the ball during launch. Now that ball is in the air and has almost reached its target, what is the ..
An undersea research chamber is spherical with an external diameter of 3.90m . The mass of the chamber, when occupied, is 30800kg. What is the buoyant force on the chamber
A wedding ring (of diameter 1.99 cm) is tossed into the air and given a spin, resulting in an angular velocity of 23 rotations per second. what is the maximum induced potential difference in the ring
A square, single turn coil 0.20m on a side is placed with its plane perpendicular to a constant magnetic field. An emf of 18mV is induced in the coil winding as the area of the coil decreases at the rate of 0.10m2/S. What is the magnitude of the m..
A gas is compressed at a constant pressure of 0.800 atm from 12.00 L to 3.00 L. In the process, 380 J of energy leaves the gas by heat. (a) What is the work done on the gas? J (b) What is the change in its internal energy?
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