Physics, 17.03.2021 23:50 rashawng2005
A person ties a 2.5 g ball to the end of a 200 cm rope and swings it around in a circle directly over their head. It takes the ball 1.2 seconds to move around the circle one time. What is the magnitude of the centripetal acceleration of the ball?
Answers: 1
Physics, 21.06.2019 15:50
The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change
Answers: 1
Physics, 22.06.2019 09:30
Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z
Answers: 3
Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
Physics, 23.06.2019 00:30
Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?
Answers: 1
A person ties a 2.5 g ball to the end of a 200 cm rope and swings it around in a circle directly ove...
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