Category: Physics

What was the most significant event in 1999 to impact the environment? It is part of the Global Environment Outlook project. The Dioxin Affair, primarily a political crisis, occurred in Belgium during the spring of 1999 due to contamination of feedstock with polychlorinated biphenyls (PCBs). What were some of the main events that led to […]

How do you hand signal a right turn? For right turns, extend your left arm out the driver’s window with your elbow bent and point your hand to the sky with your palm facing forward. Again, it’s best to keep your arm in this position until you begin your right turn, just as you would […]

Is jumping a normal force? When we jump, the chemical energy in our muscles get converted to kinetic energy that exerts a force on the ground (that using Newton’s 3rd law), will trigger a reaction that will ‘push’ us up- and thus a jump. This resultant normal force = Mass x Distance of jump. Is […]

What is dependent and independent variable in regression? The outcome variable is also called the response or dependent variable, and the risk factors and confounders are called the predictors, or explanatory or independent variables. In regression analysis, the dependent variable is denoted “Y” and the independent variables are denoted by “X”. How do you know […]

What happens to air pressure as altitude decreases quizlet? As air pressure decreases altitude increases. As air pressure decreases so does density. What happens to air pressure and density as altitude increases? Altitude and Density The density of air decreases with height. There are two reasons: at higher altitudes, there is less air pushing down […]

Which element has a mass of 24? Chromium Why are lanthanides Coloured? Lanthanides or more precisely lanthanides ions are coloured mainly because of their partly filled f orbitals. This allows a certain wavelength from the visible region of the spectrum to be absorbed which leads to the formation of f-f transition. Is lanthanides are Colourless? […]

What is another word for subduction? Subduction Synonyms – WordHippo Thesaurus….What is another word for subduction? subtraction deduction taking away lessening markdown rollback knock-off abstraction discounting docking When two continental plates collide is form? If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the […]

What pumps the blood throughout the body? What does your heart do? The purpose of your heart is to pump blood to the organs and tissues of your body that need the oxygen and nutrients it carries. Oxygen-rich blood is pumped out of the left side of your heart (shown on the right in the […]

What is respiratory system parts and functions? The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out […]

What is the sound of a gun firing? Gunfire characteristics A typical muzzle blast generates a shock wave with a sound pressure level (SPL) of 140 dB or louder. A whip-like “snap” or “crack” caused by the sonic boom that occurs as a projectile moves through the air at supersonic speeds. What sound does a […]