A uniform steel bar swings from a pivot at one end
with a period of 1.1 s. How long is the bar?

As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.

An object has a weight of 500 on earth what is the mass of this object

What’s #16 asking and how do i solve it?