#dot physics

Nope, NOT 20 m/s. To them the ball is moving at 30 m/s (i.e., 10 + 20). So much for common sense. The difference arises from the fact that they are measuring from different “reference frames,” one moving, the other stationary. It’s all good, though; everyone agrees on the outcome. If the ball hits the person, the miscreants and the bystander would calculate the same time of impact. Yes, the…

There are three ways that objects can have a thermal interaction with other objects. The most common method is through heat conduction. This happens when two objects of different temperatures are in contact, and thermal energy is transferred from the warmer object to the colder object—like when you hold a can of cold soda in your hand. The can warms up and your hand cools down. The next heat…

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The Physics of Scuba Diving

Yet every other unit is the bar, where 1 bar is equal to 14.5 psi. The price of 1 bar is terribly conclude to the stress of air on Earth. The atmospheric stress of the air that surrounds you sufficient now is in all likelihood 14.5 psi. (Sure, I talked about “doubtlessly” because I produce no longer are looking out for to think you. Maybe you are reading this from the discontinue of Mount…