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A computer memory stick has a power rating of 2.3*10^-4W and is connected to a 1.5V dc power supply for 6.5 hours decide:
1. The total charge that flows through the memory stick through this time.
2. The number of electrons that flow during the memory stick (qe = 1.60*10^-19 C)
A "torsional pendulum" comprises a uniform vertical quartz fiber attached to the top of a uniform solid sphere of mass m = 2 kg and radius r = 0.1m. what is the angular amplitude of the subsequent motion
A 14 kilogram box slides down a long, frictionless incline of angle 30 degree. Find the original potential energy of the box relative to the ground
A block-spring system oscillates with amplitude of 3.70 cm. The spring constant is 250 N/m and the mass of the block is 0.500 kg.
The motor of a four wheeler traveling along a muddy trail generates an average power of 7.90 104 W when moving at a constant speed of 15 m/s. What is the tension in the tow rope pulling the log
A telephone cord is 4.00m long. The cord has a mass of 0.200kg. A transverse pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.800s. What is the tension in the cord?
A 115 V electric iron draws 5.57 A of current. How much heat is developed per hour, What is the temperature of the bath
A capacitor has a capacitance of 2.1410-8 F. In the charging process, electrons are removed from one plate and placed on the other plate. When the potential difference among the plates is 440 V, how many electrons have been transferred?
If a metric ton is 1.000 x10^e3 kg, how many 74 kg people can safely occupy an elevator that can hold a maximum mass of accurately 1 metric ton.
In a circus an elderly performer thrills the crowd by catching a canon ball shot at him. what is his recoil velocity
An unknown tuning fork produces a beat frequency of 3Hz when played with a 440Hz fork, What is the frequency of the unknown fork
A force vector has a magnitude of 584 newtons and points at an angle 45o of below the positive x axis. What are (a) x scalar component and (b) y scalar component of the vector.
A 2.80-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.10 m down the incline in 1.20 s. Find the magnitude of the acceleration of the block.
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