Category: Physics

What happens if an octopus touches you? Saliva in the giant Pacific octopus contains the proteins tyramine and cephalotoxin, which paralyze or kill the prey. Octopus bites can cause bleeding and swelling in people, but only the venom of the blue-ringed octopus (Hapalochlaena lunulata) is known to be deadly to humans. Do octopuses like hugs? […]

What happens when tryptophan is present? When tryptophan is present in the cell, two tryptophan molecules bind to the trp repressor, which changes shape to bind to the trp operator. Binding of the tryptophan–repressor complex at the operator physically prevents the RNA polymerase from binding and transcribing the downstream genes. What time should I take […]

What do water ice and steam have in common? When water freezes, its molecules move farther apart, making ice less dense than water. This means that ice will be lighter than the same volume of water, and so ice will float in water. As some of the water vapor cools, we see it as a […]

What does it mean if a charge is in equilibrium? Equilibrium condition states that the magnitude of force F1 and magnitude of force F2 should be equal to one another. How does the electric field due to an infinite line of charge vary with the distance from the line? We have found that the electric […]

What is an example of a stationary object? For example, a heavy bag resting on a bed pushes on the bed because of its downward weight force and the bed pushes back up on the bag with a balancing force as it is squashed under the load. What is the force of a stationary object? […]

What is L in double slit equation? the distance between the slits or sources of the two light waves (d) the perpendicular distance from the point P to a point on the central antinodal line (y) the distance from point P to the sources (L) What is Young’s double slit formula? The equation d sin […]

How do you appreciate the role of specific heat in our day to day life? Specific heat gives the amount of heat energy required for heating a substance of 1 unit mass by 1 °C. So more the specific heat, more the energy required for heating the substance. 1) Utensils used for making tea or […]

Why does cooking oil have a higher boiling point than water? So when I say that oil has a higher boiling point than water, what I am actually saying is that the chemical bonds that hold oil together are stronger than the ones holding water together – it takes more heat to break them apart. […]

How long does overuse injury take to heal? Average healing time: Although the condition often gets better on its own, this injury can take between 3 – 12 months to fully heal. During this time, rest is extremely important in allowing the tendons and muscles heal. Targeted rehabilitation and stretches are critical for this process. […]

Which type of resistors are most often used nowadays? Fixed resistors are available in axial leaded and surface mount packages as well as more customized packages depending on their application. While axial leaded resistors used to be the most used resistors, nowadays the advantages of surface mount devices make the SMD resistors the most popular. […]