Category: Physics

How can Archimedes Principle predict if something will float? An object will float if the buoyancy force exerted on it by the fluid balances its weight, i.e. if FB=mg F B = mg . But the Archimedes principle states that the buoyant force is the weight of the fluid displaced. So, for a floating object […]

What is the elbow in basketball? The elbow is the area of the court where the free throw line meets the lane line. Like the “Block”, the Elbows become. important on dribble penetration. Any player – offense or defense – who gets to the elbow first will gain an advantage. What is the weakness of […]

What do scientists disagree about global warming? No. By a large majority, climate scientists agree that average global temperature today is warmer than in pre-industrial times and that human activity is the most significant factor. Today, there is no real disagreement among climate experts that humans are the primary cause of recent global warming. What […]

Why is the clearance volume important? Clearance volume or bumping clearance is the space between the top of the piston and the cylinder head of an air compressor. This clearance is an important aspect of the compressors and should be as less as practically possible to improve the volumetric efficiency of the compressor. What is […]

How can you tell independent and dependent variables? An easy way to think of independent and dependent variables is, when you’re conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that. You can also think of the independent variable as the cause and the dependent […]

What qualifies as an addiction? Addiction is a psychological and physical inability to stop consuming a chemical, drug, activity, or substance, even though it is causing psychological and physical harm. The term addiction does not only refer to dependence on substances such as heroin or cocaine. How do you know if you are addicted to […]

How do you calculate water flow in a pipe? If the liquid is flowing through a pipe, the area is A = πr2, where r is the radius of the pipe. For a rectangle, the area is A = wh where w is the width, and h is the height. The flow rate can be […]

Which more common element touches the staircase but is not highlighted green? 1 Answer. Nathan L. These elements are called metalloids. What are the two exceptions to the staircase rule? AlPo is a dog food brand, and Al (aluminum) and Po (polonium) are metals that touch the staircase. They are Metals, not metalloids, they are […]

Which is the best example of the law of conservation of energy? What is the best example of the law of conservation of energy? If a pendulum is one meter off the ground at one end of its swing, it can never be more than one meter (The law of conservation of energy states that […]

Do electric motors have horsepower? Electric Motors An electric motor’s output is measured in kilowatts. Companies that build electric cars continue to talk about horsepower because consumers are still more familiar with that type of unit. The equation is as simple as hp = kW x 1.369, so a 100-kW motor produces 136 horsepower. Are […]