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Larger animals use proportionately less energy than smalleranimals; that is, it takes less energy per kg to power anelephant than to power a human. A 5000 kg African elephantrequires about 70,000 Cal for basic needs for one day.
a) If a 68 human required thesame energy per kg of body mass as an elephant, how muchenergy would be required each day?
b) What resting power does thiscorrespond to?
c) How much less is this than the resting power noted in the chapter?
A force of 323N is applied horizontally to a crate in order to displace crate 30m across a level floor at a constant velocity. As a result of this work.
What is the needle of a compass attracted to , What is the difference between ferromagnetic and magnetic
The largest building in the world by volume is the Boeing 747 plant in Everett, Washington. It measures approximately 634 m long, 709 yards wide, and 108 ft high. a)What is its volume in cubic feet? b) Convert your result from part A to cubic mete..
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 7130 m/s, what is the magnitude of the average current in this region
A wire 69.2 cm long carries a 0.740 A current in the positive direction of an x axis through a magnetic field with an x component of zero
A long straight wire suspended in the air carries a conventional current of 8.2 amperes in the ?x direction, What is the (vector) magnetic field due to the wire at the location of the electron
When blue light of wavelength 465 nm illuminates a diffraction grating, it produces a 1st order utmost but no 2nd order maximum.
He pushes just hard enough to get the desk moving and continues pushing with that force for 5.00 s. Explain how much work does he do on the desk?
A fisherman accidentally steps off the ledge of a 4.0 meter-high dock and falls into the lake below the dock. what is the fisherman's speed on entering the water
A mass-spring system oscillates with an amplitude of 5.50cm. If the spring constant is 247N/m and the mass is 584g, determine the mechanical energy of the system
The small piston of a hydraulic lift has a cross-sectional area of 3 cm2, and its large piston has a cross-sectional area of 200 cm2. What force should be applied to the small piston for the lift to raise a load of 15kN
Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which is true about their kinetic energies as they reach the gr..
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