Can change in potential energy be negative? potential energy is scalar quantity and a change in scalar can be either positive or negative but force is a vector and the negative rate of change of potential provides you force -its magnitude as well as its direction. gravitational potential energy is taken to be zero at […]
What type of set back can occur because of exercise?
What is the role of stomata in gas exchange?
What is the role of stomata in gas exchange? Stomata are tiny holes found in the underside of leaves. They control water loss and gas exchange by opening and closing. They allow water vapour and oxygen out of the leaf and carbon dioxide into the leaf. What are stomata mention their importance? Stomata serve a […]
What is rate of change of displacement called?
What is rate of change of displacement called? Velocity is defined as rate of change of displacement. What do you mean by negative displacement? Displacement is quantity which considers magnitude as well as direction. If you move in forward direction with reference to your reference point ( initial position) then the displacement will be positive […]
What is the rms speed of hydrogen at 27 degrees Celsius?
What is the rms speed of hydrogen at 27 degrees Celsius? The root mean square velocity of hydrogen molecule at 27∘Cis(υH and that of oxygen at 402∘Cis(υ0, then. or 2υO=3υH. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams. The absolute temperature of the gas is […]
How far will a car travel in 20 min at a speed of 10 m s?
Where do greenhouse gases absorb radiation from?
Where do greenhouse gases absorb radiation from? Water vapor, carbon dioxide, methane, and other trace gases in Earth’s atmosphere absorb the longer wavelengths of outgoing infrared radiation from Earth’s surface. These gases then emit the infrared radiation in all directions, both outward toward space and downward toward Earth. Why is the natural greenhouse effect of […]
Is being too detail oriented a weakness?
Is being too detail oriented a weakness? Being detail-oriented is typically a good thing, but if you’re someone who tends to spend too much time on the specifics of a project, it could also be considered a weakness. Example: “My greatest weakness is that I sometimes focus too much on the details of a project […]
What happens to volume with temperature?
What happens to volume with temperature? Volume is inversely proportional to pressure, if the number of particles and the temperature are constant. This happens when the temperature is increased. So if the number of particles and the pressure are constant, temperature is proportional to the volume. At what temperature the volume of gas would become […]