Recent content by sportzmaniac

thank you. By converting it right I got the right answer

Homework Statement A person is standing outdoors in the shade where the temperature is 27°C. (a) What is the radiant energy absorbed per second by his head when it is covered with hair? The surface area of the hair (assumed to be flat) is 160 cm2 and its emissivity is 0.85. (b) What...

Wow, I messed that up. However, when plugging that into v = vo+ at It came out to 1.66, which I plugged into the site as 1.6s, and it told me that was wrong. Anyone know what I did wrong?

Homework Statement A hot-air balloon is rising straight up with a speed of 2.4 m/s. A ballast bag is released from rest relative to the balloon when it is 9.6 m above the ground. How much time elapses before the ballast bag hits the ground known data y direction vo = 2.4 m/s a =...

I believe so, thank you

Homework Statement I need to determine the average speed of a dot on a spinning motor and also the time it takes for the dot to make on revolution. Using a strobe light I determined I needed to do 3959.2 flashes/min in order to make the dot stay in place. The dot is 6.9 cm away from the center...