I got 6.36 rad but it’s wrong. So can someone help?

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?