Physics, 29.06.2019 18:00 zaratayyibah
Aperson places an object on the shelves. 1. at which location on the shelves (w, x, y, or z) would the object have the most gravitational potential energy? explain your answer. a book with a mass of 0.21 kg is placed at location x. a magazine with a mass of 0.11 kg is placed at location y. 2. does the book or the magazine have more potential energy? show your calculations and include units in your answer. a 2.5 kg object is placed at location x where it has 10 j of potential energy. a person bumps the shelf, causing the object to fall to the ground. 3. assuming air resistance is negligible, explain how conservation of energy is demonstrated as the object falls to the ground. 4. calculate the speed of the 2.5 kg object just before it hits the ground. show your calculations and include units in your answer.
Answers: 2
Physics, 22.06.2019 02:30
Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.
Answers: 1
Physics, 22.06.2019 08:30
How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects
Answers: 2
Physics, 22.06.2019 10:20
Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
Answers: 2
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
Aperson places an object on the shelves. 1. at which location on the shelves (w, x, y, or z) would t...
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