Aconstant force f=5i−4j−5k is applied to an object that is moving along a straight line from the point (3,−4,−5) to the point (−1,−2,4). find the work done if the distance is measured in meters and the force in newtons. include units in your answer.

When an object is heated it contracts. a. true b. false

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque