A piece of highway maintenance equipment hooked to a trailer exerts a pulling force of 3.50 x 10^3N over distance of 1.50 km. If the tractor's power output is 35.0 kW, how long does it take to do the work?

Describe uniform velocity and variable velocity in short

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

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