Physics, 11.07.2019 19:20, keirarae2005
Ahelicopter is hovering at an altitude of 200m above the surface of the lake. a speaker on the helicopter is sending out sound waves which are reflected from both the surface of the water and bottom of the lake. if the differences in arrival times of the two echoes is measured to be 0.24s, what is the depth of the lake? (the atmospheric temperature is 20°c)
Answers: 1
Physics, 22.06.2019 09:00, NatalieAllen11
What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
Answers: 2
Physics, 22.06.2019 09:50, ggcampos
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors
Answers: 1
Physics, 22.06.2019 17:00, bella51032
Explain what will happen if decomposers were apsent from a forest ecoysystem.
Answers: 1
Ahelicopter is hovering at an altitude of 200m above the surface of the lake. a speaker on the helic...
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