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Rob, a young engineer, notices that, over a long period of time, he has added 20.0 lbm (9.07 kg) of excess body fat and decides to lose this extra weight by dieting alone. Rob's activities are such that his caloric intake and energy output are identical. He normally eats two of the following meals per day, seven days per week: one cheeseburger, one regular fries, and one 10.0 oz cola. Also, he consumes 2.00 MJ per day of snack food while working. How long will it take him to lose the extra 20.0 lbm of body fat by
a. Eliminating the daily snack food only?
b. Eliminating the daily snack food plus eating only one of these meals per day?
c. Going on a total starvation diet with no food whatsoever being consumed?
A proton moving with speed 3.45 x 105 m/s in a field-free region enters an essentially uniform magnetic field of magnitude 0.795 T perpendicular to the velocity of the proton. Find at what distance Y does it exit the field
A compact disc (CD) contains music on a spiral track. Music is put onto a CD with the assumption that, during playback, Find the constant tangential speed at which music is detected
A hot-air balloon is released from rest and rises up with an acceleration of magnitude g/4 (i.e., 2.45 m/s2). How fast is the balloon moving at that time
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two large parallel conducting plates are separated by a distance d placed in a vacuum and connected to a source of
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F1 = (-3.0,3.1) and F2 = (-4.4,-3.6) where all components are in newtons. What angle does the vector F1 + F2 make with the positive x-axis? The angle is measured counterclockwise from the positive x-axis and must be in the range from 0 to 360 degr..
A flywheel of mass 185 kg has an effective radius of 0.60 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). (a) How much work is done to bring this wheel from rest to a speed of 120 rpm in a..
Is there a difference between people who obey the law out of fear and those who obey the law out of a sense of duty or character? What are those differences? When is it acceptable not to obey the laws? What types of laws ought we obey
a single phase 60 hz source supplies a 90 kva 0.8 power factor lagging load through a transmission line with impedance
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