Arock of mass 0.254 kg falls from rest from a height of 15.8 m into a pail containing 0.416 kg of water. the rock and water have the same initial temperature. the specific heat capacity of the rock is 1920 j/kg c°. ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in celsius degrees.
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Physics, 22.06.2019 16:00
Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.
Answers: 1
Physics, 22.06.2019 22:10
Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.
Answers: 1
Arock of mass 0.254 kg falls from rest from a height of 15.8 m into a pail containing 0.416 kg of wa...
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