ind the currents flowing in the circuit in the figure below. (Assume the resistances are R1 = 6 Ω, R2 = 12 Ω, R3 = 20 Ω, R4 = 15 Ω, r1 = 0.25 Ω, r2 = 0.5 Ω, r3 = 0.25 Ω, and r4 = 0.75 Ω.)

Abox is pushed down at an angle of 32 degrees on a rough surface. the box moves to the right.what equation should be used to find the net force in the y-direction? answers: a. fnet,y = fn - fgb. fnet,y= fp - ffc. fnet,y = fn-fg- fpcos(32)d. fnet,y = fn-fg-fpsin(32)

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j