Category: Physics

Why do magnets align in the north south direction? Magnetism | Short/Long Answer Questions Solution: A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction. What will […]

Is the ruler drop test valid? The ruler-drop test has acceptable test-retest reliability that compares favorably with computerized measures of reaction time. Which finger has the fastest reaction time? The fingers on the outside — i.e. the thumb and little finger — therefore react faster than the middle finger, which is exposed to the “cross […]

What is the difference between emission and absorption spectrum? The main difference between emission and absorption spectra is that an emission spectrum has different coloured lines in the spectrum, whereas an absorption spectrum has dark-coloured lines in the spectrum. What is basic emission? Definition of Emission The basic electronic emission occurs when heat, sunlight, electron […]

Why are my chickens pooping in their nesting boxes? Chickens generally will only poop in the nesting boxes if they are sleeping in them at night. Often young pullets will try to sleep in the boxes instead of on the roosts with the older hens. To prevent this, take any little ones out of the […]

Is acceleration and velocity the same? Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per […]

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 […]

What is frame of reference and its types? There are two types of observational reference frame: inertial and non-inertial. An inertial frame of reference is defined as one in which all laws of physics take on their simplest form. In special relativity these frames are related by Lorentz transformations, which are parametrized by rapidity. What […]

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 […]

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 […]