Im giving all the points you want ill give you brainliest
a group of students performed an e...
Mathematics, 25.09.2019 23:00, JamesP33
Im giving all the points you want ill give you brainliest
a group of students performed an experiment to prove the law of conservation of energy. in the experiment, a flask containing water at room temperature was shaken vigorously for a few minutes. the table shows a partial record of the temperature of the water before and after shaking.
experimental record
temperature
before shaking 21 °c
after shaking unknown
what best predicts the unknown temperature? (3 points)
less than 21 °c because heat energy is formed from the energy used in shaking
greater than 21 °c because heat energy is formed from the energy used in shaking
less than 21 °c, because the total energy of the system after shaking is higher than before shaking
greater than 21 °c, because the total energy of the system after shaking is higher than before shaking
9.
(01.04 hc)
the table shows the potential energy and kinetic energy of a skier at two different positions on a hill.
position and energy
position (above ground) kinetic energy potential energy
100 meters 0 units 50,000 units
60 meters ? 30,000 units
what is the kinetic energy of the skier at a height of 60 meters above ground? (3 points)
20,000 units, because total energy remains unchanged
80,000 units, because total energy remains unchanged
20,000 units, because total energy of the skier decreases
80,000 units, because total energy of the skier decreases
Answers: 1
Mathematics, 21.06.2019 17:20, damonsmith201615
Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?
Answers: 3
Mathematics, 21.06.2019 23:30, byron17
Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is
Answers: 3
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