Category: Physics

Can fish love humans? In most cases though, yes, fish are able to recognize their owners and in some cases form an attachment. Many scientists that worked on the archerfish study report the fish appearing anxious and skittish if a stranger walked into the room, compared to a loving spit of water at a familiar […]

How do you know if a road is 20 mph? There are no physical measures such as chicanes or humps in the roads that have been added to an original 20mph zone. Instead you’ll see road signs at the entry points into the 20mph zone, together with ’roundels’ or circles with ’20’ painted on the […]

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 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 […]

What are three destructive effects of runoff? Some other effects from stormwater runoff include: Instead it runs off hard surfaces and, in a heavy rain, can lead to flooding, erosion and property damage. Water pollution. Water becomes polluted as it runs across lawns, driveways and other hard surfaces, when it collects oil, gas, fertilizers, pet […]

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 […]

How many types of bonds can a carbon atom form? four Can a single carbon atom exist on its own? Pure carbon can exist in different forms, depending on how its atoms are arranged. The forms include diamond, graphite, and fullerenes. All three forms exist as crystals, but they have different structures. Their different structures, […]

How many outlets can a 15 amp breaker hold? 10 outlets Why is daisy chaining dangerous? Daisy chaining is a term that refers to the practice of plugging a power strip into another power strip. This is dangerous because an excessive amount of power is being drawn from one single wall outlet, which means the […]