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Question: Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 22 rubs, at a distance of 7.00 cm per rub, and with an average frictional force of 48.0 N,
Part A: What is the temperature increase?
I need help to solve the above question and the mass of tissues warmed is only 0.110 kg, mostly in the palms and fingers.
A circuit consists of an idealized 191 mH in- ductor and a 25.4 µF capacitor. calculate the maximum energy stored in the inductor
A 2.40-kg textbook is forced against a horizontal spring of negligible mass and force constant 300 N/m , compressing the spring a distance of 0.260m. find how far the textbook moves from its initial position before coming to rest
A typical winter electric bill might be for 2000 kilowatt-hours of energy each month (say 30 days). If you had an electric heating system that required 10 kilowatts (10 kW) to keep your house warm, how many hours per day on average would it have been..
A jet airplane flying over Chyenne, Wyoming, has an air speed of 260 m/s in a direction 5.0 degrees south of west. What is the velocity of the airplance relative to the earth
A generator has an armature with 500 loops, which experience a change in flux of 8.00 mWb during each rotation. Compute the back emf it develops when run as a motor at 1500 rpm
questionan astronaut shipwrecked on a remote planet with unidentified characteristics is on top of a cliff which she
The catapult on an aircraft carrier can take an aircraft from 0 to 182 mph in 11 seconds, at which time the aircraft launches
The centers of a 14kg lead ball and a 130g lead ball are separated by 7.0cm. What gravitational force does each exert on the other
a particle with positive charge q = 6.40 x 10-19 C moving with speed v = 8.13 x 105 m/s toward a long straight wire with current i = 229 mA, What is the magnitude of the force on the particle due to the current
The force applied to the cart in Question A by springscale F1 is still 12.25 N. What are the magnitude and direction of the frictional force
A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston. Neglect any height difference between the plunger and the pisto..
What frequency does a driving force need to have to drive an oscillator with a natural frequency of 50Hz in resonance
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