In levelling, the following staff readings were observed involving an inverted staff, a = 2.915 and b = -2.028. what is the rise or fall from a to b (only enter numeric answer, no alpha)?

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.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?