Category: Physics

How do you calculate a pulley system? To calculate the mechanical advantage of a pulley you simply have to count the number of rope sections that support whatever object you are lifting (not counting the rope that is attached to the effort). For example, in a one pulley system the MA is 1. In a […]

Are hot crusts more or less dense? It can get quite hot deep in the Earth’s crust. In fact, it can get so hot that the rocks that make up the crust can actually begin to melt. This molten material is called magma. It is less dense than the surrounding rock so it tends to […]

How do I figure out how much soil I need for a raised bed? How to find soil volume for square or rectangular beds Measure the length, width and height of your bed. (Unless the boards are very thick, don’t worry about inside/outside measurements.) Multiply all the measurements together: 6 x 3 x 1.4 = […]

What are the foregoing powers? Often called the “elastic clause,” the necessary and proper clause simply states that Congress has the power, “To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or […]

What is the correct classification of a mixture? Mixtures can be classified into two main categories: homogeneous and heterogeneous. A homogeneous mixture is one in which the composition of its constituents are uniformly mixed throughout. What is the correct classification of mixture in which both solid and liquid are visible? Whereas a solution in which […]

How does frequency affect interference? A higher frequency corresponds to a shorter wavelength. Waves of shorter wavelength spread out (diffract) less after passing through the slits, and the short wavelength leads to a smaller angle at which constructive interference (one wavelength path difference between the two waves) will occur. What is interference effect? Interference, in […]

What is the rate of change on a graph? A rate of change relates a change in an output quantity to a change in an input quantity. The average rate of change is determined using only the beginning and ending data. See (Figure). Identifying points that mark the interval on a graph can be used […]

What is a greedy woman called? The definition of avaricious is greedy and money-hungry. The definition of abstemious is someone who abstains or is moderate, often specifically in their consumption of food and beverage. What do you call a person who asks for money? The definition of a beggar is a person who asks people […]

How do you use please correctly? Please is an adverb that functions as an interjection in polite requests. It can go at the beginning, middle, or end of a sentence….It might appear as: part of a phrase no commas needed, e.g. Don’t forget to say please and thank you. as a verb with no commas […]

At what height the acceleration due to gravity will be reduced to 36% of its value? We can write the relation between actual acceleration due to gravity and the apparent acceleration due to gravity. Hence, the height above the surface of the earth where the acceleration due to gravity is reduced by 36% of its […]