Category: Physics

What kind of pattern is formed if grating is exposed to white light? Like a prism, a diffraction grating separates the colors in white light to produce a spectrum. The spectrum, however, arises not from refraction but from the diffraction of the light transmitted or reflected by the narrow lines in the grating. How do […]

What happens if you push in the middle of the door do you need more or less force Why? If you’re pushing on the same side of the centre of mass of the door as the hinge, the door wants to rotate the other way (as if the hinge was on the other side). So […]

What is a relationship between two quantities called the input and output? A function is a relationship between two quantities, called the input and output. It can not have two ordered pairs with the same x-value. When two variable quantities have a constant ratio Their relationship is called? Proportional relationships are relationships between two variables […]

How do you convert percentages into degrees for a pie chart? To convert the degree into percentage in pie chart: As we know to find the percentage we divide the number by total of whatever amount and multiply it by 100, now in this case degree needs to be converted into percentage. How do you […]

What is the formula of path difference for destructive interference? The general formula for destructive interference due to a path difference is given by δ = (m + 1/2) λ / n where n is the index of refraction of the medium in which the wave is traveling, λ is the wavelength, δ is the […]

Do sound waves move matter? The analysis shows that, at second order in an expansion around small amplitude vibrations, there is a small net motion of material, and thus mass, in the direction opposite to the wave packet propagation. This is a straightforward consequence of Newton’s laws. Is Sound 4 dimensional? In four dimensions, sound […]

How do I know if my house is energy efficient? Here are a few signs to look for that may indicate your home needs some help in the energy efficiency department: Your energy bills cost you over 10 cents per square foot. For example, your home is 2000 square feet and your SRP or APS […]

Can you add logs with different bases? Logs of the same base can be added together by multiplying their arguments: log(xy) = log(x) + log(y). They can be subtracted by dividing the arguments: log(x/y) = log(x) – log(y). What happens if you multiply two logs? Well, remember that logarithms are exponents, and when you multiply, […]

Can students retake a Brainpop quiz? If you’d like a student or students to repeat an assignment, we recommend duplicating the assignment and assigning it to the specific student or students. Has Liquid Water Been Found on Moon? In August 2018, NASA confirmed that M3 showed water ice is present on the surface at the […]

How do depolarization and repolarization relate to muscle contraction and relaxation? Explain how depolarization and repolarization occur. How do these relate to muscle contraction and relaxation? Depolarization is caused by a flood of ions (sodium and potassium) across the cell membrane and drives the cells, therefore cardiac muscle tissues, to contract. What is cardiac cycle […]