Category: Physics

What astrology sign is the moon in right now? Aries What is Lilith in astrology? In an astrology chart, Black Moon Lilith represents a person’s primitive impulses and behavior in their rawest form. It reveals our repressed sexuality, together with what makes us feel most vulnerable; it expresses the dark side of one’s personality, buried […]

Can firewood be too dry? It’s not something that most people complain about very often, but yes, wood can be too dry and burn faster than would be the case at an optimal 10-15% MC. What is the longest burning firewood? Hardwoods such as maple, oak, ash, birch, and most fruit trees are the best […]

Why angular momentum of Earth is conserved? Earth moves under the influence of the gravitational forces of all bodies in the Solar System. The energy and angular momentum of Earth are conserved, because the gravitational force is both conservative and central. Is angular momentum is a scalar? Angular momentum is a vector quantity that represents […]

How do you show that two vectors are equal? Vector is equal to vector b. For two vectors to be equal, they must have both the magnitude and the directions equal. What does the modulus sign mean? In mathematics, the absolute value or modulus of a real number x, denoted |x|, is the non-negative value […]

Is nothing but the limit between maximum and minimum number? Minimum means the least you can do of something. For example, if the minimum amount of dollars you must pay for something is seven, then you cannot pay six dollars or less (you must pay at least seven). You can do more than the minimum, […]

At what angle two forces p Q and PQ Act so that resultant is √ 2p 2 Q 2? Thus, the angle of inclination between the forces must be 60°. At what angle should the two vectors 2f and act so that the resultant force is? Answer: Let a and b are two vectors making […]

What is the best definition of reflection? 1 : an instance of reflecting especially : the return of light or sound waves from a surface. 2 : the production of an image by or as if by a mirror. 3a : the action of bending or folding back. b : a reflected part : fold. […]

How do you tell which way the wind is blowing? A weather vane is designed to point directly into the wind. One side of the weather vane will be a narrow, pointed end (usually resembling the tip of an arrow). The other end is made wider to catch the wind. As the wind blows, you […]

What will increase fringe spacing? With a single slit the spacing increases with wavelength, though if you reduce the width of the slit enough, the number of fringes decreases and their size increases. How fringe benefits are calculated? Employers will calculate a fringe benefit rate to determine the percentage of an employee’s hourly wage relative […]

Why can one put his her fingers beside the flame of a lit candle but not above the flame? You can hold your fingers beside the candle flame without harm, but not above the flame. Why? Answer: Heat travels up by convection. Do your hands feel equally hot? No. The hand above the flame gets […]