Category: Physics

Is body size a life history trait? Some life history traits include the size of an animal at birth (or at hatching), the age and size at which an animal reaches reproductive maturity, how it reproduces (oviparous or viviparous), how often it can reproduce (semelparous or iteroparous), the length of time it is reproductively active, […]

Which method would be best for separating the components of a mixture? distillation What are 5 ways to separate a mixture? Glossary chromatography: Involves solvent separation on a solid medium. distillation: Takes advantage of differences in boiling points. evaporation: Removes a liquid from a solution to leave a solid material. filtration: Separates solids of different […]

How do you really say sorry? Steps for saying you’re sorry Before you do anything, practise self-affirmation. It’s important to start by saying a few positive words to yourself. Spell out why you want to apologise. Admit you were wrong. Acknowledge the other person’s feelings. Say you’re sorry. Ask them to forgive you. How many […]

What are two unique features of the stratosphere? The stratosphere is very dry; air there contains little water vapor. Because of this, few clouds are found in this layer; almost all clouds occur in the lower, more humid troposphere. Polar stratospheric clouds (PSCs) are the exception. PSCs appear in the lower stratosphere near the poles […]

Is Y =- 5 a linear equation? No. All linear functions can be written in the form y = mx + b, where m is the slope and b is the y-intercept (slope-intercept form). This function, y = 5/x, is a hyperbola, with a vertical asymptote at x = 0 and horizontal asymptote at y […]

What is the overall charge of MgCl? +2 Why Magnesium chloride has no overall charge? Overall, the compound has no charge, because the positive sodiums balance out the charge on the negative chlorides, and vice versa. Magnesium oxide forms in a ratio so that the positive charges on the magnesium balance the negative charges on […]

What are 2 dimensional impressions? 2-D impressions will be any impression that only has length and width measurements. 2-D footwear impressions are typically found indoors and are associated with objects touched at the crime scene. This can include any object or surface in the crime scene. Are shoe impressions Class evidence? No they are not […]

How is 2 2×4 equal 10? Apparently 2+2×4=10 because you always x before + This is news to me. The way I was taught, sums are read left to right unless ( ) tell you to do that bit first. So for 10 the sum should be 2+(2×4)=10 Otherwise 2+2=4 then 4×4=16 Have I been […]

What happens when air subsides? Subsidence, or sinking of air, may happen instead, forming an area of high pressure, an anticyclone. Large scale subsidence occurs when air several thousands of feet overhead is denser than the surrounding air. Warming of the air as it subsides increases evaporation, causing clear skies. Does cold air have a […]

What are the key concepts in the evolution theory of Darwin? Branching descent and natural selection are the two key concepts of Darwinian Theory of Evolution. Why was Lamarck’s theory wrong quizlet? LaMarck’s theory was incorrect because he did not know how traits were inherited & that the organism’ behavior has no effect on inherited […]