A student environmental group is creating a campaign for locally sourced energy resources. What would be best for them to feature in their campaign?
A. a coal mine located in their county
B. a farmer with a field of solar panels
C. a company building a gas pipeline through the town
D. a rancher drilling for oil in a horse pasture

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

In a good thermo flask the main cause of heat loss is