According to the present estimates, the universe is about years old.
a. 14 × 105
b. 14...
Answers: 3
Physics, 22.06.2019 06:30
Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults
Answers: 1
Physics, 22.06.2019 09:00
As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
Answers: 2
Physics, 22.06.2019 10:30
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
Physics, 23.06.2019 08:20
What kind of air would be characteristic of a continental polar air mass? o a cold, dryob. warm, humido c. warm, dryo d. cold, wet
Answers: 1
Mathematics, 20.07.2019 12:00
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Chemistry, 20.07.2019 12:00
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Biology, 20.07.2019 12:00