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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?
Determine the maximum depth of water possible without the wall tipping over. The wall simply rests on the ground without being anchored to it.
A 10.00kg box on a smooth, frictionless, horizontal surface experiences a downward force of 30n at an angle of 40 degrees to the horizontal. The box moves 1.50 m to the right. What was the work done by gravity.
a 330g airtrack cart on a horizontal air track is attached to a string that goes over a pulley with a moment of
A block is given an initial velocity of 5 m/s up a frictionless 20 ° incline. How far up the incline does the block slide before coming (momentarily) to rest.
potentiometer used for the determination of internal resistance of a 1.5 v cell. the balance point of the cell in open
a bottle containing 6.6 kg mass of water at a temperature of 28.2 oc is placed in a refrigerator where the temperature
The initial rotational inertia of the student's body (not including the dumbbells) with arms extended is 6.0 kg.m2 and her final rotational inertia is 5.0 kg.m2 . Determine the student's final rotational speed.
100uC of charge flows through a conductor in 5ms. What is the current through the conductor
A 65-kg bicyclist rides his 8.8-kg bicycle with a speed of 14 m/s. What is the magnitude of the braking force? How far does the bicycle travel if it takes 4.0 s to come to rest?
Earth's atmosphere is constantly bombarded by cosmic ray protonsthat originate somewhere in space. If the protons all passed through the atmosphere, assume that each square meter of Earth'ssurface would intercept protons at the average rateof 1400..
The isotope of lithium used in a hydrogen bomb is Li-6, whose nucleus contains 3 protons and 3 neutrons. When a Li-6 nucleus absorbs a neutron, a nucleus of the heaviest hydrogen isotope, tritium (H-3), is produced.
The average density of a fish can be found by firstweighing it in air and then finding the apparent weight of the fishas it hangs completely immersed in water. what is the average density of the fish
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