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For its size, the common flea is one of the most accomplished jumpers in the animal world. A 2.5mm -long, 0.49 mg critter can reach a height of 20cm in a single leap.[A] Neglecting air drag, find the takeoff speed of such a flea?[B] In fact, most humans can jump no more than 60cm from a crouched start. Compute the kinetic energy per kilogram of mass at takeoff for such a 77kg person?[C] If a 77 kg , 1.8 -tall human could jump to the same height compared with his length as the flea jumps compared with its length, how high could he jump, & what takeoff speed would he need?[D] Compute the kinetic energy of this flea at takeoff & its kinetic energy per kilogram of mass.
Estimate approximately the angular deflection of the muon's trajectory, given that the rest mass of muon is 100Mev and that the saturation magnetization in iron is equivalent to 1.6 x 10^23 electron moments per cm^3.
How does the decrease in gravitational potential energy of a falling ball compare to its increase in kinetic energy.
A typical Major League fastball is thrown at about 99 mph and with a spin rate of 103 rpm. If the distance between the pitcher's point of release and the catcher's glove is exactly 65.5 ft, how many full turns does the ball make between release and c..
Estimation instantaneous rate of evaporation
A person eats a dessert that contains 230 kcal. The skin temperature of this individual is 36° C and that of her environment is 21° C. The emissivity of her skin is 0.85 and its surface area is 1.3 m2. How much time would it take for her to emit the ..
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
The maximum tension that a 0.5m string can tolerate is 14N. A 2.5kg ball is attracted to the string being whirled in a vertical circle. What is the maximum speed the ball can have at the top of the circle.
What should be the least kinetic energy in electron volts
The springs of a 1600 kg car compress 5.0 mm when its 65 kg driver gets into the driver's seat. If the car goes over a bump, what would be frequency of vibrations.
What is the magnitude of the current in the wire as a function of time?
The speakers produce the same single-frequency tone in either drawing and are in phase. The speed of sound is 343 m/s. Find the single smallest frequency that would produce both constructive interference in drawing 1 and destructive interference in d..
What is acceleration due to gravity
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