Which of the following statements is/are correct? a. Valves open and close in response to pressure changesb. The chordae tendineae and papillary muscles stop the atrioventricular valves from everting in response to high ventricular pressure. c. The semilunar valves are closed by filling of cusps by backflow of blood. d. All of these statements are correct.

ι вєℓιєνє ιт ιѕ тнє fιяѕт ¢нσι¢є(α.)

нє ѕнσυℓ∂ ѕмιℓє ρσℓιтℓу αи∂ ѕρєαк тσ тнє ρєяѕσи ωнσ ιѕ ιитєяяυριиg αfтєя тнє ∂ιѕ¢υѕѕισи

нσρє ι ¢συℓ∂ нєℓρ.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

so easy. just google the electromagnetic waves and it’ll pop up.

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.