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The howler monkey is the loudest land animal and can be heard up to a distance of 1.3km. Assume the acoustic output of a howler to be uniform in all directions. The acoustic power emitted by the howler, in mW, is closest to:
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 117 bpm, How fast are you moving with respect to the Moon
The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car's acceleration is 5.45 m/s2. If the car's initial speed is 33 m/s, how long does it takes to stop and how far does it travel, starting ..
A long horizontal hose of diameter 3.2 cm is connected to a faucet. At the other end, there is a nozzle of diameter 1 cm. detetmine the velocity of the water in the hose
The 20-g centrifuge at NASA's Ames Research Center in Mountain View, Determine the rotation rate, in revolutions per second, required to give the astronaut a centripetal acceleration of 19.8g
A uniform plank of length 4.7m and weight 204 N rests horizontally on two supports, with 1.1 m of plank hanging over the right support. To what distance x can a person who weighs 445N walk on the overhanging part of the plank before it just begins ..
A photon with a wavelength 4.40 scatters from an electron initially at rest. Find out the wavelength of the scattered photon when the scattered electron has its utmost kinetic energy. Kmax = 2.37*20^-14.
A power supply maintains a potential difference of 86.1 V across a 1070-? resistor. What is the current in the resistor
A parallel-plate capacitor with C = 13 mu or micro FF is charged so as to contain 1.1 J of energy, what is the energy density (the energy per unit volume)
When an x-ray photon with wavelength = 0.070nm strikes an electron at rest, What is the maximum angle through which it may be scattered
The velocity vs time graph of an object is approximated by a triangle which starts at v=0 at t=0, rises to a maximum of v=6 m/s at t=6 sec, then returns to zero at t=10 sec. How far did the object travel?
Two tugboats pull a disabled supertanker. Each tug exerts a constant forace of 1.55*10^6n, What is the toal work they do on the supertanker
A beam of particles is directed at a 0.0178 kg tumor. There are 1.56×1010 particles per second reaching the tumor, Calculate the biologically equivalent dose (in rem) given to the tumor in 26.8 s.
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