sending signals to muscles, causing them to contract, or to glands, causing. them to produce secretions. Neurons, or nerve cells, carry out the functions of the nervous system by. conducting nerve impulses.
Best Answer: Specific Heat is the energy required to raise EACH gram of a material by 1C. This is expressed in J/gC. The temperature change is 82.1C - 30.7C = 51.4C. The Aluminum weighs, not 1g, but 625g. m x c x Î´T = Q 29.5g x 0.45J/g/Â°C x (40 - 25Â°C) Î´T = 199.125 Joules (= 0.199kJ) of heat absorbed. (you can say 0.200kJ) If 8.4kJ was used as in your initial statement, to raise the temp. by 5Â°C, the mass of iron must have been much greater than 29.5g. or, 8.4kJ is an error. 29.5 x 0.45 x 5 = 66.4 kJ.
In a large baking dish, pour marinade over ribs and refrigerate, basting occasionally, for a minimum of 2 hours, but preferably overnight. Preheat oven to 300Â°. Cover baking dish with aluminum foil and cook ribs for 2 hours. Increase the oven temperature to 350Â°.Remove the aluminum foil and baste ribs with barbecue sauce. Continue cooking for 45 minutes, basting with sauce every 15 minutes.over baking dish with aluminum foil and cook ribs for 2 hours. Increase the oven temperature to 350Â°. Remove the aluminum foil and baste ribs with barbecue sauce. Continue cooking for 45 minutes, basting with sauce every 15 minutes.