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Body fat has an energy content of about 38,000 Joules per gram. Suppose your weight has been constant, but then - after being introduced to really good chocolate - you start eating 100 extra food calories (recall, 1 food calorie is really 1kcal or 1000 calories of energy) every day without otherwise adjusting your diet or exercise. After one year, how much weight will you have gained?
Find the modulation index corresponding to the given trapezoidal pattern for the AM signal.
A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal. If the mass of the box and the books is 40 kg, what is the normal force on box? a. 332 N b. 312 N c. 392 N d. 292 N
What is the maximum sideways angle. What is the train's acceleration after its wheel begins to stick.
What amplitude of simple harmonic motion of the spring-blocks system puts the smaller block on the verge of slipping over the larger block.
At a temperature of 5800, hydrogen atoms in the solar atmosphere have typical random speeds of about 12. Assume that spectral-line broadening is simply the result of atoms moving toward us or away from us at this random speed, estimates thermal width..
Ice at -13.7 °C and steam at 114 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 43.3 °C is present. Ignoring container and equilibrium vapour pressure of t..
The length of an air column that produces a strong resonance in a cylinder is 0.18m, what is the frequency of the tuning fork being used .
As a freely falling object picks up downward speed, what happens to the power supplied by the gravitational force? Does it increase, decrease, or stay the same and Why.
A football spends a total of 5 seconds in the air. It reaches a peak height of 30 meters. How long does it take to reach its peak height? The football has the range of 90 yards. What is its horizontal velocity.
A 1300- {rm N} crate slides 15- {rm m} down a ramp that makes an angle of 35^circ with the horizontal. If the crate slides at the constant speed, how much thermal energy is created.
For a damped oscillator with a mass of 380g, the spring constant 120 N/m and a damping coefficient of 76 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 28 cycles.
A certain star is 14 million light-years from Earth. The intensity of the light that reaches Earth from the star is 4.00 x 10-21 W/m2. At what rate does the star radiate EM energy.
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