Physics, 13.07.2019 09:40 angelamalcom2913
Ahot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. for simplicity, consider the weight to be only that of the hot air within the balloon, thus ignoring the balloon fabric and the basket. the hot air inside the balloon has a density of Ďhot air = 0.93 kg/m3, and the density of the cool air outside is Ďcool air = 1.29 kg/m3. what is the acceleration of the rising balloon?
Answers: 1
Physics, 21.06.2019 22:50
Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object
Answers: 2
Physics, 21.06.2019 23:30
Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.
Answers: 3
Physics, 22.06.2019 04:10
Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60â with each other as shown in the figure. what is the intensity of the transmitted beam, st?
Answers: 3
Ahot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyan...
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