Physics, 28.02.2020 06:56 benjaminmccutch
40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open arms. As they collide and hold each other, what is the speed of the couple?
Answers: 1
![m_{1}*v_{1}+m_{2}*v_{2}=(m_{1}+m_{2})*v_{2}\\(40*3.5)+(65*0)=(65+40)*v_{2}\\v_{2}=140/105\\v_{2}=1.33[m/s]](/tpl/images/0527/9167/21598.png)
Another question on Physics
Physics, 22.06.2019 09:00
What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
Answers: 2
Physics, 22.06.2019 09:00
Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.
Answers: 1
Physics, 22.06.2019 11:50
Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending
Answers: 2
You know the right answer?
40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open arms. A...
Questions
Chemistry, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Physics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
English, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
Mathematics, 12.04.2021 04:40
