5. determine the temperature change in each of the following cases:
a) 200 g of water gains 8 400 j of heat.
b) 15 kg of water loses 252 kj of heat.
can you show me your work for one of them.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?