Physics, 16.10.2019 22:00 keidaniela
Me, i do not understand this exercice and i really need your ..on june 14, 2007, austria's herbert nitsch broke his world record in depth diving. it descended to 214 m below sea level. during its ascent, it respected a constant speed of 3 m / s to the depth of 70 m, then it slowed to the surface. a fixed camera filmed part of his ascent. three images taken at intervals of 3 s were assembled in the document opposite.
1. according to the document, what is the nature of the diver's trajectory?
2. using the diver's positions on the document, how do you justify a constant value for the diver's speed?
3. specify the direction and direction of the diver's ascent rate.
4. using the scale given on the document, calculate the distance traveled by the diver in 3 s. deduce the value of the speed of the diver.
5. is the diver in the initial phase or in the final phase of recovery on the document?
6. use two adjectives to describe the diver's movement during this ascent phase
Answers: 2
Physics, 22.06.2019 03:00
Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.
Answers: 1
Physics, 22.06.2019 14:30
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
Answers: 3
Physics, 22.06.2019 17:00
Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.
Answers: 3
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
Me, i do not understand this exercice and i really need your ..on june 14, 2007, austria's herbert...
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