Physics, 22.04.2020 20:19 chloedonyes
While dangling a hairdryer by its cord, you observe that the cord is vertical when the hairdryer is off and, once it is turned on, the hairdryer moves to the right and comes to rest when the cord makes an angle of 5o with the vertical, as shown below. In a different experiment, you determine that the same hairdryer is pushing 0.06 m3 of air through itself every two seconds. The mass of the hairdryer is 420 g. Determine the speed of the air leaving the hairdryer, vair. Assume that the mass of 1 m3 air is 1.2 kg and that the hairdryer is blowing air perpendicular to the wire.
Answers: 3
Physics, 21.06.2019 16:30
Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream
Answers: 1
Physics, 22.06.2019 00:50
While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.
Answers: 3
While dangling a hairdryer by its cord, you observe that the cord is vertical when the hairdryer is...
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