Do lights in equal distance away from you have the same brightness? The intensity or brightness of light as a function of the distance from the light source follows an inverse square relationship. Notice that as the distance increases, the light must spread out over a larger surface and the surface brightness decreases in accordance […]
What does current flow mean?
What does current flow mean? Current flow basically means the flow of electric charges with respect to time. In an electric circuit, when the electric charge is flowing in one direction, the current will flow in the opposite direction. From Ohm’s law, the current can be defined as the voltage through the circuit per unit […]
How low can you set thermostat in winter?
How low can you set thermostat in winter? Wondering what temperature to set your thermostat when you’re away during winter? According to the U.S. Department of Energy, “When leaving on vacation — usually more than three days — set your thermostat to 50-55 degrees Farenheit in the winter to prevent against freezing pipes.” When should […]
How high can you throw a ping pong ball?
What lives in a marsh?
What lives in a marsh? Animals like mink, raccoons, opossums, muskrats, beavers, frogs, turtles and lots of species of birds and insects are common in marsh lands. Freshwater marshes can vary in size from very small to very large! The largest freshwater marsh in the United States is the Florida Everglades. What lives in a […]
How do I rebuild my immune system after antibiotics?
How do I rebuild my immune system after antibiotics? The Bottom Line Taking probiotics during and after a course of antibiotics can help reduce the risk of diarrhea and restore your gut microbiota to a healthy state. What’s more, eating high-fiber foods, fermented foods and prebiotic foods after taking antibiotics may also help reestablish a […]
Is Pi a Radian?
Do exit signs need Braille?
Do exit signs need Braille? All exit doors must feature a tactile sign with raised characters and Braille lettering. However, it is allowable to have two separate signs: one visual and the other tactile. Do all exits need to be accessible? All entrances and all exterior ground-level exits shall be accessible in compliance with Section […]
Is sweating positive or negative feedback?
Is sweating positive or negative feedback? Another example of negative feedback occurs when your body’s temperature begins to rise and a negative feedback response works to counteract and stop the rise in temperature. Sweating is a good example of negative feedback. Is body temperature positive or negative feedback? (b) Body temperature is regulated by negative […]
What are the differences between series and parallel connection?
What are the differences between series and parallel connection? Difference between series and parallel circuit A circuit is said to be a series circuit when the flow of current is the same throughout all the components in the circuit. In a series circuit, all the components are arranged in a single line. In a parallel […]