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The 160-mm-radius brake drum is attached to a larger flywheel that is not shown. The total mass moment of inertia of the drum and the flywheel is 18 kg · m2 and the coefficient of kinetic friction between the drum and the brake shoe is 0.35. Knowing that the angular velocity of the flywheel is 360 rpm counterclockwise when a force P of magnitude 300 N is applied to the pedal C, determine the number of revolutions executed by the flywheel before it comes to rest.
A generator uses a coil that has 210 turns and a 0.20-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), conclude the length of wire f..
Through a particular process, the pressure of the gas in a heat engine increases from 1.62×105 Pa to 2.64×105 Pa, while the volume decreases from 3.34×102 m3 to 2.74×102 m3. The pressure-volume graph is a straight line.
The components of a simplest clamping circuit.
Two Capacitors, C1= 2.0 mF and C2=9.0 mF , are in a series. Find the potential difference across the second capacitor
A cyclist starts from rest and coasts down a 6.5? hill. The mass of the cyclist plus bicycle is 95kg. The cyclist has traveled 270m. What was the net work done by gravity on the cyclist
A small mirror is attached to a vertical wall, and it hangs adistance of 1.59 m above the floor. The mirror is facing dueeast, and a ray of sunlight strikes the mirror early in the morning and then again later in the morning. The incident andrefle..
An air conditioner operating between 88°F and 73°F is rated at 4100 Btu/h cooling capacity. What horsepower is required of the air conditioner motor
The maximum wavelength an electromagnetic wave can have and still eject an electron from a copper surface is 264 {\rm nm}. What is the work function of a copper surface?
when you place a saltshaker 30 cm from your magnifying glass a real image forms 30 cm from the lens on the opposite
What is the centripetal acceleration of a helicopter flying in a horizontal circle of a diameter 510 m at a speed of 120 m/s
A 1.4 kg object at x= 2.00m, y = 3.10m moves at 3.96 m/s at an angle of 45 degrees north of east. Calculate the magnitude of the object's angular momentum
Compute the temperature at which a tungsten filament that has an emissivity of 0.35 and a surface area of 3.0 10-5 m2 will radiate energy at the rate of 15 W in a room where the temperature is 13°C.
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