Physics, 21.01.2020 04:31 taylorbean315
Asmall mass m starts from rest and slides from the top of a fixed sphere of radius r. a. if the sphere is frictionless, at what angle theta from the vertical does the mass leave the surface? b. suppose there is friction between the mass and the sphere with friction coefficient meu_s =0.1. what is the minimum angle theta_min at which the mass will start to slide along the sphere? c. the mass is now placed just past this minimum angle and released. the coefficient of kinetic friction meu k is small but not zero. does the mass fly off at a larger or a smaller theta than found in part (a)? assume theta is defined with respect to the top of the sphere.
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Physics, 22.06.2019 02:00
Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.
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Physics, 22.06.2019 05:30
Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?
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Physics, 22.06.2019 16:30
In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendelâs discoveries in genetics. over a century later, darwinâs idea of evolution was modified in order to incorporate mendelâs rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendelâs rules of genetics and darwinâs idea of biological evolution? a.)mendelâs genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendelâs theory of genetics.c.)mendelâs genetics replaced darwinâs entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.
Answers: 1
Asmall mass m starts from rest and slides from the top of a fixed sphere of radius r. a. if the sphe...
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