Physics, 27.11.2019 22:31 ahnorthcutt4965
A75 g, 30 cm long rod hangs vertically on a friction less, horizontal axel passing through the center. a 10 g ball of clay travelling horizontally at 2.5 m/s hits and stick to the very bottom tip of the rod. to what maximum angle, measured from vertical, does the rod rotates when the ball of clay is attached to the rod?
Answers: 3
Physics, 21.06.2019 21:30
Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
Answers: 2
Physics, 22.06.2019 21:00
Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.
Answers: 1
Physics, 23.06.2019 18:30
What is the kinetic energy of an object that has a mass of 50.0kg and a velocity of 18 m/s?
Answers: 1
A75 g, 30 cm long rod hangs vertically on a friction less, horizontal axel passing through the cente...
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