Category: Physics

What does not affect braking distance? Visibility is one of a number of factors that do not affect your braking distance per se but can inhibit your thinking distance. The longer it takes for you to spot hazards in the road, the more time will have passed before you hit the brake pedal. What factors […]

Why do roller coasters feel faster than cars? ELI5: why does going 60mph on a roller coaster feel so different than going 60mph in a car? Because 1) they’re open so you feel the wind and 2) they don’t go in long, straight lines. They go all over and throw you left, right, up, and […]

How do you treat multidrug resistant bacteria? Current Treatment Options for MDR-GNB in Critically-ill Patients Polymyxins. Polymyxins acts as detergents of the outer membrane of GNB, exerting bactericidal activity. Aminoglycosides. Tigecycline. Carbapenems. Fosfomycin. Ceftazidime/Avibactam. Meropenem/Vaborbactam. Ceftolozane/Tazobactam. How serious is Mdro? Infection. When a person gets sick because of the bacteria, they are infected with the […]

Do more bushels of potatoes grow when the soil is fertilized? An investigation found that more bushels of potatoes were produced when the soil was fertilized more. Students measured the temperature of the water at different depths in Lake Skywalker and found that the temperature varied. Does potatoes need to be fertilized? As you will […]

Does oxygen form a positive or negative ion? Negative ions are called anions . Oxygen is in group 6. An oxygen atom has six electrons in its outer shell. The atom is more stable if it has a full outer shell….Forming negative ions. Atom name Ion name Sulfur Sulfide Which form of oxygen is the […]

What is called stereopsis? Stereopsis (from the Greek στερεο- stereo- meaning “solid”, and ὄψις opsis, “appearance, sight”) is a term that is most often used to refer to the perception of depth and 3-dimensional structure obtained on the basis of visual information deriving from two eyes by individuals with normally developed binocular vision. Why is […]

What is the centripetal force that allows a car to turn? friction What is difference between centripetal force and centrifugal force? Centripetal force is defined as, “the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation,” while centrifugal force is defined […]

Is negative free cash flow a bad sign? Although companies and investors usually want to see positive cash flow from all of a company’s operations, having negative cash flow from investing activities is not always bad. Can you have negative cash flow and positive profit? Cash flow is the net amount of cash and cash-equivalents […]

When a small stone is dropped into a pond of still water what happens? When that pebble is dropped in the pond, it pushes water out of the way. The water has nowhere to go but to the side and up, creating a circular peak around the drop point. This peak falls again, under the […]

Can you boil water with a tealight candle? This calculation suggests that a tea light should be able to boil 4 or 5 pots of water. However, not all the energy will go nto the hot water and you will have to heat up the pot as well as the water. So I would guess […]