Chemistry, 21.03.2021 18:20 fvmousdiana
Haipushing a wheelbarrow filled with sand on a building site. The total
wheelbarrow and its contents is 30 kg. When he applies a force
wheelbarrow move forward at a constant speed.
what is the magnitude of the friction between the wheels and the
ground? Explain your answer.
man shouts at John to hurry up, and he increases his pushing force
SON
Draw a labelled free-body diagram of all the forces that act on
the wheelbarrow
Calculate the wheelbarrow's acceleration (10 ms forward)
2. The mass of a minibus with the driver is 1,50 x 10kg. Assume that the
passengers have an average mass of 50,0 kg each. The driver is moving at
speed of 30,0 ms when he notices that the traffic lights ahead have turn
to red. He causes a braking force of 9,00 x 10'N on the minibus.
Answers: 3
Chemistry, 21.06.2019 17:10
Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 1
Chemistry, 21.06.2019 22:50
Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law
Answers: 1
Chemistry, 22.06.2019 20:30
How many grams of phosphorus are contained in 5.09 moles of phosphorus?
Answers: 1
Haipushing a wheelbarrow filled with sand on a building site. The total
wheelbarrow and its conte...
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