Why are CO2 levels increasing? Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. For 2018 alone, global fossil fuel emissions reached 10 ± 0.5 Pg C yr−1 for the first time in history (Friedlingstein et al. 2019). About half of the CO₂ emitted since 1850 remains […]
Why is the waste from nuclear power dangerous?
Why is the waste from nuclear power dangerous? Dangers of Radioactive Waste [1] High-level waste is produced as part of the nuclear fuel process and needs to be considered in order to avoid permanent damage to living organisms and the environment. [2] These dangerous byproducts remain intensely radioactive for a long time. Can nuclear waste […]
Does glucose use channel protein or carrier protein?
Does glucose use channel protein or carrier protein? The uptake of glucose, which serves as a primary source of metabolic energy, is one of the most important transport functions of the plasma membrane, and the glucose transporter provides a well-studied example of a carrier protein. How are proteins transported into nucleus? Proteins destined for the […]
Which country has night only 40 minutes?
Which country has night only 40 minutes? Norway Why is the rising sun important to Japan? During the 19th Century, the rising sun symbol became the flag of the military. As such, it was flying during Japan’s imperialist expansion when it occupied Korea and part of China. Why does the sun rise early in Japan? […]
What is a molecule that is not a compound?
What is a molecule that is not a compound? Compound Basics Let’s start with molecules. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element. Water (H2O) can be called a molecule or a compound because it […]
Which trial has the greatest impulse?
Which trial has the greatest impulse? Explanation: impulse equals force x time so for each trial it would be a force which is 500 x 8 individual time trial 3 has the highest time which would equal the highest impulse. What type of relationship exists between momentum and mass? Mass and velocity are both directly […]
What is the direction of drag force?
What is the direction of drag force? Drag is a force and is therefore a vector quantity having both a magnitude and a direction. Drag acts in a direction that is opposite to the motion of the aircraft. Lift acts perpendicular to the motion. Is buoyancy a drag force? Drag is due to frictional resistance […]
Can anything survive a black hole?
What happens when a sound source is moving?
What happens when a sound source is moving? When the sound source moves toward an observer, each successive wave is emitted closer to the observer than the previous wave and takes just a little less time to reach the observer than the previous one. Since the time between waves is reduced, the frequency is increased. […]
What is break even analysis and its assumptions?
What is break even analysis and its assumptions? 1. Break-even analysis is based on the assumption that all costs and expenses can be clearly separated into fixed and variable components. It assumes that fixed costs remain constant at all levels of activity. It should be noted that fixed costs tend to vary beyond a certain […]