You want to create a special device to keep coffee warm. which type of electromagnetic wave would be most useful to investigate?
gamma rays
radio waves
x-ray
infrared waves

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?