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A person is trying to practice with their yo-yo. They can throw the yo-yo with initial angular velocity w(initial) = 500 rad/sec. The yo-yo has angular acceleration of a= -35.0 rad/sec ^2. How long does it take yo-yo to spin to rest?
A light plane attains an airspeed of 480 km/h. The pilot sets out for a destination 830 km due north but discovers that the plane must be headed 24.0° east of due north to fly there directly
A dog chasing a ball starts at rest and accelerates uniformly over a distance of 5 meters. It takes the dog 1 s to cover that first 5 m. What is the dog's acceleration, and what speed is the dog traveling when it reaches the 5 m point?
You drive on Interstate 10 from San Antonio to Houston, half the time at 60 km/h and the other half at 105 km/h. On the way back you travel half the distance at 60 km/h and the other half at 105 km/h.
You are studying standing sound waves in an organ pipe of length L with both ends open, What is the frequency of the musical tone produced by the organ pipe in the situation described in part b
find the maximum height reached by a body of mass 5 kg thrown with a speed of 10 m/s. take g= 10 m/s^2. find also the work done in reaching that height
A charge of -2.205%u03BCC is located at (2.630m , 4.253m ), and a charge of 1.765%u03BCC is located at (-2.793m , 0). Find the electric potential at the origin
a 90 ohm resistor has a current of .6A and is connect in series with a 150 ohm resistor. What is the emf of the battery to which the resistors are connected
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
Snowboarder Sherry of mass m is pulled up a slope at constant velocity v by a tow bar. The force of the tow bar is parallel to the slope, which is inclined at (theta) with respect to the horizontal. The coefficient of kinetic friction between the ..
An idealized voltmeter is connected across the terminals of a 12.5-{\rm V} battery, and a 73.5-\Omega appliance is also connected across its terminals. What is the internal resistance of the battery?
A hollow sphere of inner radius 6.8 cm and outer radius 7.8 cm floats half-submerged in a liquid of density 750 kg/m3. What is the mass of the sphere
An RL series circuit has R = 80.0? and L = 1.95mH . The series combination is connected across a 165V (rms), 63Hz power supply. Find the peak current
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