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Why does the duck have trouble maintaining its body

QUESTION A duck has a thick layer of fat just beneath its skin. In addition to making the duck more buoyant, this fat helps it stay warm in cold water.a. Why does the duck have trouble maintaining its body temperature in cold weather?b. Why does the duck have more trouble staying warm in cold water […]

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Date: September 2nd, 2020

Atmospheric Retention – Student Guide

QUESTION Atmospheric Retention – Student Guide Background Information Work through the background sections on Escape Velocity, Projectile Simulation, and Speed Distribution. Then complete the following questions related to the background information. Question 1:Imagine that asteroid A that has an escape velocity of 50 m/s. If asteroid B has twice the mass and twice the radius, […]

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Date: September 2nd, 2020

What is the main thrust of the book

QUESTION You are a scholar writing a review of the textbook by L. Maffi and E. Woodley, Biocultural Diversity Conservation: A Global Sourcebook (Earthscan 2010). Write a 200-250+ word review that addresses the following aspects: What is the main thrust of the book? Which key scientific concepts does the book address? How does the book […]

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Date: September 2nd, 2020

The special thermal properties of water affect the hydrologic cycle

QUESTION The special thermal properties of water affect the hydrologic cycle and global warming. For instance, the presence of the winter polar ice cap slows the springtime heating of the Arctic Ocean. Here’s an experiment to illustrate this:Beaker A contains 1 gram of water at 0oC. Beaker B contains 1 gram of ice at 0oC. […]

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Date: September 2nd, 2020

Complete the table below by using the Projectile Simulator

QUESTION Complete the table below by using the Projectile Simulator to determine the escape velocities for the following objects. Since the masses and radii are given in terms of the Earth’s, you can easily check your values by using the mathematical formula for escape velocity.ObjectMass(Mearth)Radius(Rearth)vesc(km/s)vesc (km/s) calculation(optional)Mercury0.0550.38Uranus154.0Io0.0150.30Vesta0.000050.083Krypton10010   ANSWER: REQUEST HELP FROM A TUTOR

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Date: September 2nd, 2020

Remember these statements from the power points

QUESTION Remember these statements from the power points:Warm air is less dense than cold air Humid air is less dense than dry airWarm air can contain more moisture than dry airAir pressure and temperature both decrease with elevation As pressure decreases air expandsAs air expands it cools As air is compressed it warms upGo to […]

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Date: September 2nd, 2020