Category: Physics

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 […]

Which organ in the fish is most similar to the human respiratory system? The Alternative Lung In a way, the Fish Respiratory system is similar to the human respiratory system. However, at the same time it is not. Fishes breathe through their gills, taking in dissolved oxygen and carbon dioxide. Their lungs(gills) are placed toward […]

Why do solids do not diffuse in each other? This is because of diffusion , the movement of particles from an area of high concentration to an area of low concentration. This means that diffusion does not happen in solids – the particles in a solid can only vibrate and cannot move from place to […]

What will happen if a spaceship that is motionless in deep space is given a quick push? What will happen if a spacecraft that seems to be motionless in deep space is given some type of quick push? The spacecraft will move and will not stop until it is stopped by an equal and opposite […]

How do humans do photosynthesis? Human photosynthesis doesn’t exist; we must farm, slaughter, cook, chew and digest — efforts that require time and calories to accomplish. As the human population grows, so does the demand for agricultural goods. Not only are our bodies expending energy, but so are the farm machines we use to make […]