A. 0.25 terabytes
b. 2.5e + 17
Have 5 (or any number) doghouses each with a different insulator. Make sure the other variables are controlled so the experiment if fair. Put a thermometer inside the doghouse and record the temperature inside each doghouse. Whatever doghouse has the highest temperature is the best insulator.
Explanation:
Given that,
Mass of the cart, ![m_1=1\ kg](https://tex.z-dn.net/?f=m_1%3D1%5C%20kg)
Mass of the cart 2,
Final speed of cart 2, ![v_2=0.3\ m/s](https://tex.z-dn.net/?f=v_2%3D0.3%5C%20m%2Fs)
Final speed of cart 1 is 0 as it comes to rest.
Let us assume that the initial velocity of the cart 2 is 0. So using the conservation of linear momentum as :
![m_1u_1+m_2u_2=m_1v_1+m_2v_2\\\\m_1u_1+0=0+m_2v_2\\\\m_1u_1=m_2v_2\\\\u_1=\dfrac{m_2v_2}{m_1}\\\\u_1=\dfrac{3\times 0.3}{1}\\\\u_1=0.9\ m/s](https://tex.z-dn.net/?f=m_1u_1%2Bm_2u_2%3Dm_1v_1%2Bm_2v_2%5C%5C%5C%5Cm_1u_1%2B0%3D0%2Bm_2v_2%5C%5C%5C%5Cm_1u_1%3Dm_2v_2%5C%5C%5C%5Cu_1%3D%5Cdfrac%7Bm_2v_2%7D%7Bm_1%7D%5C%5C%5C%5Cu_1%3D%5Cdfrac%7B3%5Ctimes%200.3%7D%7B1%7D%5C%5C%5C%5Cu_1%3D0.9%5C%20m%2Fs)
So, the initial velocity of the 1.0-kg cart is 0.9 m/s.
The instrument that measures wind is called anemometer. Anemometer not only measures wind, but also, this measures the direction of the wind. And anemometer is also a common device used in a station weather. It is dervived from the greek work anemos which means wind.
Axon
Dendrites
Myelin sheath
I think that those are enough