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Explain in what ways mechanical work is and is not related to caloric expenditure.
Include in your answer the distinction between positive and negative work and the influence of anthropometric factors.
You work in a materials testing lab and your boss tells you to increase the temperature of a sample by 46.6 C. The only thermometer you can find at your workbench reads in degrees Fahrenheit. If the initial temperature of the sample is 67.7 F, what i..
A 2.23-m-long rod, as measured in its rest frame, speeds by you longitudinally at 6.11 × 107 m/s. By how many millimeters do you determine the rod has contracted
In coming to a stop, a car leaves skid marks 76 m long on the highway. Assuming a deceleration of 6.50 m/s2, estimate the speed of the car just before braking. Express in m/s.
A subway train starts from rest at a station and accelerates at a rate of 1.50m/s2 for 14.2s. find total distance covered
when you push down on a bicycle pump the pressure on the gas changes from 1.0 atm to 3.0 atm. by what factor does the
The mass of each can be taken to be 37,000 . If the train is accelerating at on a level track, elucidate the tension in the coupling between the second and third cars? The car nearest the locomotive is counted as the first.
The accepted value for the suns intensity at the earth is measured on an area with its normal along the suns "ray". Calculate the temperature of the sun
A ramp inclined at 60.0 degrees with respect to the horizontal rests on a floor. The mass of the ramp is 10.kg, and the coefficent of static friction between the bottom of the ramp and the floor is .8. A 5.0 kg block is then placed on the inclined..
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 33.5 dB. What is the intensity delivered to the eardrum
three types of charged particles lets call them a b and c are accelerated and then pass through a velocity selector so
Physicians use electroencephalograms (EEGs) to study electrical oscillations in the human brain. So-called beta oscillations, whose enhancement has been linked to alcoholism, have frequencies from 12 to 30 Hz . What's the corresponding range in perio..
A turtle crawls along a straight line, which we will call the x-axis with the positive direction to the right. The equation for the turtle's position as a function of time is x(t) = 50.0 cm +(2.00 cm/s)t -(.0625 cm/s^2)t^2 At what time is the turt..
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