What force pulls the moon and Earth together?

What force pulls the moon and Earth together? Gravity Is Gravity present on moon? The Moon’s surface gravity is about 1/6th as powerful or about 1.6 meters per second per second. The Moon’s surface gravity is weaker because it is far less massive than Earth. You do not have the same weight on Earth as […]

What describes a concave lens?

What describes a concave lens? A concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct […]

What is the strongest crystal structure?

What is the strongest crystal structure? Diamond is the hardest material known, defining the upper end of the 1-10 scale known as Moh’s hardness scale. Diamond cannot be melted; above 1700 °C it is converted to graphite, the more stable form of carbon. The diamond unit cell is face-centered cubic and contains eight carbon atoms. […]

What is relation between CP and CV?

What is relation between CP and CV? The specific heat of gas at constant volume in terms of degree of freedom ‘f’ is given as: Cv = (f/2) R. So, we can also say that, Cp/Cv = (1 + 2/f), where f is degree of freedom. Monoatomic gas has only one translational motion, hence three […]

How do you measure for built in bookshelves?

How do you measure for built in bookshelves? Measure the horizontal width of the wall space for the bookshelves. If the area is beside a window, door or other architectural feature, measure at the narrowest point, where the trim on the wall sticks farthest into the bookshelf space. What would you use to measure a […]

What is a food chain explain with diagram?

What is a food chain explain with diagram? A food chain is a linear diagram showing how energy moves through an ecosystem. It shows only one pathway out of the many possibilities in a specific ecosystem. What are the 4 food chains? Once students understand, have them draw the sun, a producer, a primary consumer, […]

Is electricity the movement of electrons?

Is electricity the movement of electrons? Electricity is the movement of electrons between atoms. Why do electrons move from negative to positive? A: Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets […]

What are examples of responses?

What are examples of responses? Response: how the organism reacts to a stimulus and results in a change in behavior. (It is a fancy way of saying “effect”.) Example: Getting a drink when you are thirsty. What are the types of responses? Types of Responses Agree/Disagree Response. Interpretive/Reflective Response. Analytic/Evaluative Response. What are the four […]

What has more water lakes or rivers?

What has more water lakes or rivers? By comparison, freshwater comprises only 3% of the earth’s water, and surface water is only 0.3% of that 3%. Furthermore, rivers and lakes comprise 2% and 87%, respectively, of surface water. Thus, rivers contain only 0.00018% and lakes only 0.0078% of the earth’s water. Who has the most […]

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