Athick window pane 0.367 cm has an area of 1.247 square meters. the temperature difference between the inside and outside surfaces of the window is 33.2°c. what is the rate of heat flow through this window in j/s if the thermal conductivity for glass is 0.8 j/s/m/°c? a. 9.025b. 9025c. 902.5d. 90.25

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?