Suppose that a piece of polystyrene insulation board has a thermal conductivity of k= 0.04 W/m. K.
In comparison, copper has a thermal conductivity of about 400
W/m. K. If you want to make a wall of copper
that provides the
insulation as a 4-cm polystyrene board, how thick does the
wall have to be (in meters)?
same
copper

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

What were the success and failures that came to boyle’s excitements?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.