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Problem- An object is moving at 18 m/s at an angle of 220 counterclockwise from the x axis. An object is moving at 18 m/s at an angle of 220 counterclockwise from the x axis.
A) What is the x component of its velocity?
B) What is the y component of its velocity?
Anyone can tell me how to solve it step by step so that I will be able to understand what is going on?
A sample of an unknown gas effuses in 11.9 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.19 min. What is the molar mass of the unknown gas
Determine how many grams will remain in 150 Years If we have 150.000 g of 137Ce now,?
A student tried to make a buffer of pH 4.0 using sodium acetate and acetic acid. The initial pH of the buffer solution was 3.9. How should the student adjust the pH to the desired value?
What volume of 2.94 M HNO3 can be made by diluting 128 mL of concentrated nitric acid (16.0 M HNO3)
IF the temperature remains constant but the pressure is changed, can the phase state be changed. Why or why not.
What volume of this solution is required to make 1.50 L of 2.75 mol/L NH3(aq)? Give your answer in millilitres, accurate to three significant figures.
if you burn 33.7g of hydrogen and produce 301 g of water, how much oxygen reacted?
Describe how chemical labeling and crystal structures can be used to determine residues important
For the following reactions, identify the substance that is the oxidizing agent and the substance that is the reducing agent.
A 0.1276g sample of a monoprotic acid (molar mass=1.1*10^2) was dissolved in 25mL of water and titrated with .0633M NaOH. After 10mL of base had been added, the pH was determined to be 5.17. What is the K_a for the acid
Identify the potential donor atoms in each of the following Lewis bases and classify the donor atom(s) as hard soft or borderline bases
How many grams of dry NH_4Cl need to be added to 1.60 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.99? Kb for ammonia is 1.8*10^{-5}.
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