Chemistry, 28.08.2021 07:00, kevinh2683
HELP ME PLS THIS IS THE LAST THIS I HAVE TO DO AND I CANT FIGURE IT OUT!!!
A 40 kg girl is pushing a 40 kg boy in a 20 kg toy wagon.
*The wagon is moving at a constant speed of 2.0 m/s. Calculate the combined kinetic energy of the boy and the wagon.
*They come to a hill going downward, and the girl joins the boy in the wagon, which continues to move at 2.0 m/s at first. Calculate the combined kinetic energy of the two children and the wagon.
*As they travel down the hill, the wagon speeds up to 4.0 m/s. Calculate the kinetic energy of the two children and the wagon after the increase in speed.
Answers: 1
Chemistry, 22.06.2019 15:30, ashtonviceoxd21i
The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b. colder climates near the equator c. large waves on the cost of europe d. warm climates in northern europe
Answers: 1
Chemistry, 22.06.2019 18:00, jeepjose58
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 22.06.2019 22:00, luciaaviles3
Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.
Answers: 2
HELP ME PLS THIS IS THE LAST THIS I HAVE TO DO AND I CANT FIGURE IT OUT!!!
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