Category: Physics

What object is not found within our solar system? The sun, the planets, dwarf planets (Pluto), natural satellites (like the moon), asteroids, comets, meteoroids, meteors, and meteorites. Objects NOT found in our solar system: Galaxies, other stars, constellations, the universe, black holes, supernovas and nebulae. What is a coma in the solar system? The coma […]

Is rain water an acid or alkali? Not all rain can be considered pure water. Pure water is neither alkaline nor acidic. As rain falls from the atmosphere the impurities it collects changes the pH of the rain water, making it slightly acidic. How can we keep rain water clean? 5 Ways to Properly Store […]

What is cell surface charge? The surface charge can have either a negative or positive electrical state, which is determined by the balance between negatively charged and positively charged nanoparticles at the surface. The cell membrane surface of living cells has a different electric potential to the interior of cell, namely membrane potential. Are cells […]

Which statement best describes the effect that stress has on the immune system? Stress can lead to increased vulnerability to infections and immune deficiency disorders:best describes the effects that stress has on the immune system. Which of the following symptoms is considered a physical effect of stress? Chest pain is considered to be the physical […]

What is the coldest month in Flagstaff AZ? January 4 What month does it snow in Flagstaff AZ? Flagstaff experiences intense sunny days as well as an average of 100 inches of snow during the winter months. Snow tends to come in late November and may last on the San Francisco Peaks until June. Is […]

What are the similarities and differences between electric and magnetic forces acting on a charged particle? Electric forces are created by and act on, both moving and stationary charges; while magnetic forces are created by and act on only moving charges. Electric monopoles exist. Magnetic monopoles don’t* exist. This is the reason that Maxwell’s laws […]

When sugar is dissolved in water the resulting solution is classified as a? A mixture in which a substance has fully dissolved in water is called a solution and the substance is said to be soluble. An example of this type of mixture is sugar in water. Here the sugar dissolves fully to give a […]

What is the intensity of a 40 dB sound? The Threshold of Hearing and the Decibel Scale The faintest sound that the typical human ear can detect has an intensity of 1*10-12 W/m2. How many times louder is 20 dB? For the decibel scale, that number is 10. A 20 dB sound is 10 times […]

How many tidal bulges are there in a day? two tidal What causes tidal forces? Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). Why do tidal forces […]

What is the maximum torque that the loop can experience? Torque on the loop can be found using τ=NIABsinθ τ = N I A B sin ⁡ . Maximum torque occurs when θ = 90º and sin θ = 1. What is the magnetic dipole moment of current carrying coil? The magnetic dipole moment of […]