What is the power of an appliance?

What is the power of an appliance? The power of an electrical appliance tells us how much electrical energy it transfers in a second. Power, P is measured in watts (W) where: 1 W = 1 J/s (joule/second). Appliances used for heating have a much higher rating than those used to produce light or sound. […]

Why does a straw look bigger in water?

Why does a straw look bigger in water? Place a straw in a glass of water, and behold: It looks broken. But below, when the light also travels through water, the refraction causes the image of the straw to be in a slightly different location. The water also acts as a type of magnifying lens, […]

What are the features of a sedimentary rock?

What are the features of a sedimentary rock? Sedimentary rocks contain rounded grains in layers. The oldest layers are at the bottom and the youngest layers are at the top. Sedimentary rocks may contain fossils of animals and plants trapped in the sediments as the rock was formed. What type of minerals are found in […]

What is the difference between bacteria and archaea?

What is the difference between bacteria and archaea? Responses will vary. A possible answer is: Bacteria contain peptidoglycan in the cell wall; archaea do not. The cell membrane in bacteria is a lipid bilayer; in archaea, it can be a lipid bilayer or a monolayer. Bacteria contain fatty acids on the cell membrane, whereas archaea […]

Is ATM a volume?

Is ATM a volume? An atm, or atmosphere, is a unit of gas pressure. According to the Ideal Gas Law, 1 mole of a gas that occupies a volume of 22.4 liters at 273 degrees Kelvin (0 degrees Celsius or 32 degrees Fahrenheit) exerts a pressure equal to 1 ATM. These conditions are known as […]

What is Heisenberg Uncertainty Principle explain?

What is Heisenberg Uncertainty Principle explain? Heisenberg’s uncertainty principle is a key principle in quantum mechanics. Very roughly, it states that if we know everything about where a particle is located (the uncertainty of position is small), we know nothing about its momentum (the uncertainty of momentum is large), and vice versa. What is the […]

How do you know if electrons are non-bonding?

How do you know if electrons are non-bonding? Because it takes two electrons to form a covalent bond, we can calculate the number of nonbonding electrons in the molecule by subtracting two electrons from the total number of valence electrons for each bond in the skeleton structure. How many non-bonding electrons are there? The number […]

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