The contraction of the ventricles is referred to as _, and the period of ventricular relaxation is called _ . The
monosyllables describing heart sounds during the cardiac
cycle are _. The first heart sound is a result of closure of
the _ valves; the second heart sound is caused by closure
of the _ valves. The heart chambers that have just been
filled when you hear the first heart sound are the o, and
the chambers that have just emptied are the (7). Immedi-
ately after the second heart sound, the (8)_ are filling with
blood, and the (9)_are empty. Abnormal heart sounds, or
(10) , usually indicate valve problems.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.