<u>Removing nail by the flat end of the hammer is an example of </u><u>using hammer as a lever</u>
<h2>Explanation:</h2>
Lever is a type of simple machine and we know that machine is anything that makes the work of a human easier. By using hammer to remove a nail from wood is an example of lever. The input force is applied on the handle of hammer and a result the output force is experienced at the nail. Fulcrum is the area between the wood and the mouth of hammer by which we will remove the nail.
The fraction of energy that is lost is 25%, it depends how fast the ball was going until it lost 25% of its energy, the gravitational energy was transferred into the kinetic energy that helped the ball bounce back
Because: the oesophagus is the throat and the mouth is how the food gets to the oesophagus. might be wrong because I'm not sure about the organ part but I'm pretty sure that's all it could be
Explanation: We have considered the total charge for each coin , this is the total atoms x 29 electrons for cooper and multiplier by electron charge, the total charge for each coin is 0,464 C
Explanation: HIV is a viruse that only shows symptoms after a few weeks. in Fact HIV does not show any physical symptoms. So, no you can not tell if someone has or is been infected by HIV by directly looking at them.