Answer:
Sound waves travel at different speed when traveling through different materials.
Explanation:
Sound travels quickly through air. However it takes longer for sound to travel through other materials like water. Sound may travel faster through water than liquid metal. This is because the different materials of different densities have a different sound speed when sound is passed through it.
Answer:
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Explanation:
In the reaction represented by the equation 2Al2O3-->4Al+3O2, what is the mole ratio of aluminum to oxygen?
4:3
1. your skin is full of nerves. The skin feels the cold temperature which tells the nerves it is cold. the nerves then send signals to target muscle to start shivering. the rapid movement of the muscles then create heat, which keeps your body temperature where it should be.
2. if a person has high blood glucose levels, that means the body has too much sugar. This could mean that the pancreas is not producing enough insulin, which is a hormone that helps your body use the sugar for energy.