Why does the inner core of Earth remain solid even though it is very hot? The inner core is solid because it is made of very dense, or heavy, materials – like iron and nickel. Even though it is very hot, these materials don’t “melt” very easily, so they stay solid. Answer 3: It turns […]
Is water a refrigerant?
Is water a refrigerant? Water stands out as a natural refrigerant because it has no GWP or ODP and is neither flammable nor toxic. The thermodynamic process takes place in a rough vacuum due to the vapor pressure curve of water but then corresponds to the cycle of conventional refrigeration systems. Can you use a […]
What is the independent variable in a function?
What is the independent variable in a function? An independent variable is a variable that represents a quantity that is being manipulated in an experiment. In the context of a function, the independent variables are the inputs to the function and the dependent variables are the outputs of the function. … What are some examples […]
How does turning off lights help climate change?
How does turning off lights help climate change? According to NSTAR, 29% of energy use in non-residential buildings is used for lighting. If you turn off the lights whenever you leave a room, you can reduce greenhouse gas emissions by 0.15 pounds per hour. How can students help reduce climate change? Make sure the lights […]
What is an example of red shift?
What is an example of red shift? Scientists can use redshift to measure how the universe is structured on a large scale. One example of this is the Hercules-Corona Borealis Great Wall; light takes about 10 billion years to go across the structure. How is Red Shift measured? How Do Astronomers Measure Redshift? The most […]
What does physics do to music?
What does physics do to music? The development of music required an understanding of physics. Many aspects of music require an understanding of physics. Lastly, music is greatly influenced by how the ear and the brain actually perceive sound. The ear is a highly complex mechanical device that demonstrates many principles of physics. Why do […]
How much force is required to close a door?
Would a propeller work in space?
Would a propeller work in space? Turbine engines and propellers use air from the atmosphere as the working fluid, but rockets use the combustion exhaust gases. In outer space there is no atmosphere so turbines and propellers can not work there. This explains why a rocket works in space but a turbine engine or a […]
What are the 6 types of fossils?
What are the 6 types of fossils? There are 6 types of fossils. They are body, trace, cast and mold, living, s carbon film, and petrified wood. What are the two main types of fossils? There are two types of fossils- the body fossils and the trace fossils. Body fossils include preserved remains of an […]
What will happen if two oceanic plates collide?
What will happen if two oceanic plates collide? When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone. Old, dense crust tends to be subducted back into the earth. An example of a subduction zone formed from a convergent […]