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A crate with a mass of 120 kg glides through a space station with a speed of 2 m/s. An astronaut speeds it up by pushing on it from behind with a force of 250 N, continually pushing with this force through a distance of 7 m. The astronaut moves around to the front of the crate and slows the crate down by pushing backwards with a force of 230 N, backing up through a distance of 6 m. After these two maneuvers, what is the speed of the crate?
Final speed = m/s
prove the presence of the cations listed : Sn2+ , cd2+, Cu2+, Bi3+. write four paragraphs about these cations a paragraph each?
a solution of i2 was standardized with ascorbic acid. using a 0.100 g sample of pure ascorbic acid 25.32 ml of i2 were
calcium malonate, the salt of malonic acid, is found in beetroot and is known as an inhibtor of the citric acid cyle. if a sample of beetroot disolved in water has a pH of 8.20,
It requires 20.65 mL of 0.3000 M NaOH solution to titrate both acidic protons in 40.00 mL of the tartaric acid solution Write the net ionic equation.
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C, the volume of the gas is 307 mL. To what temperature must the gas be heated
How do you find the concentrations of the individual reactants that are part of the compounds? As far as the relative rate, I don't understand how to find m, n, and p in the equation: relative rate = k' (I-)^m(BrO3-)^n(H+)^p.
Distinguish between a real gas and an ideal gas. How does increasing the temperature of a gas in a closed vessel affect the pressure
Question- How many grams of dry NH4Cl need to be added to 2.00 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.53? Kb for ammonia is 1.8*10^-5.
When the actual pressure is 76.25 cm Hg the barometer reads 74.89 cm. What will the barometer read when the actual pressure is 73.27 cm of mercury
in the process of producing sparkling wine from grape juice the sugar glucose is decomposed to form ethanol and carbon
Metallic elements tend to act as Lewis acids and form complexes with a variety of Lewis bases. Since most elements are metals, and almost all metals form complexes, it is important to understand these complexes
A lab technician makes three successive 10.0mL to 100.0mL dilutions of a .970 M stock solution of Copper(II) Chloride, then adds 3.00mL to a test tube initially containing 7.00mL of an ammonia solution. What is the molarity of copper(II) ions in t..
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