Why does light refract when it encounters the glass in a lens? a) because it speeds up, which causes it to bend b) because it slows down, which causes it to bend c) because it hits a dense medium, which causes it to bounce off d) because it gets absorbed, which causes it to lessen in intensity eliminate

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

Avector a⃗ has a length of 8.6 m and points in the negative x direction. find the x component of the vector −3.7a⃗ .