, 26.11.2016 09:29 laquiataylor948

# How might the human heart benefit birds?

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Physics, 30.01.2019 19:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
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Distinguish between linear momentum and angular momentum
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Asatellite that goes around the earth once every 24 hours iscalled a geosynchronous satellite. if a geosynchronoussatellite is in an equatorial orbit, its position appearsstationary with respect to a ground station, and it is known as ageostationary satellite find the radius rof the orbit of a geosynchronous satellite that circles the earth.(note that ris measured from the center of the earth, not the surface.) you mayuse the following constants: the universal gravitational constant g is 6.67 \times 10^{-11}\; {\rm n \; m^2 / kg^2}. the mass of the earth is 5.98 \times 10^{24}\; {\rm kg}. the radius of the earth is 6.38 \times 10^{6}\; {\rm m}.
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Refrigerant 134a enters a well-insulated nozzle at 160 lbf/in.2, 220f, with a velocity of 110 ft/s and exits at15 lbf/in.2 with a velocity of 1350 ft/s. for steady-state operation, and neglecting potential energy effects, determine the exit temperature, in f.