Iwant to block has a mass of 20.0 kg in a specific heat of 1700j/kg celsius. find the change in thermal energy of the block as it warms from 15. 0 celsius to 25.0 celsius

Most energy in an ecosystem comes originally from_

What is the angular momentum of the bar about the axle?

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.