Physics, 19.01.2022 01:00 bercishicicorbin
Anyone good at physics, that can help me? Will give 100 point!!!
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Starting from rest, a 10 kg block slides 11.9 m down a frictionless ramp (inclined at
30â—¦ from the floor) to the bottom. The block then slides an additional 21.1 m along the floor before coming to stop. The acceleration of gravity is 9.8 m/s2.
A) Find the speed of the block at the bottom of the ramp.
B)Find the coefficient of kinetic friction between block and floor
C)Find the magnitude of the mechanical energy lost due to friction.
Answers: 2
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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?
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Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
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Based on its type of chemical bond, which of the following has the highest boiling point? potassium chloride ethyl alcohol water ammonia
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Anyone good at physics, that can help me? Will give 100 point!!!
You don't need to show your work...
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