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spayn [35]
3 years ago
13

If an object is accelerating at a rate of 25 m/s2, how long (in seconds) will it take to reach a speed of 550 m/s? (Assume an in

itial velocity of zero.)
Chemistry
1 answer:
V125BC [204]3 years ago
8 0

Answer:

22s

Explanation:

Given parameters:

Acceleration  = 25m/s²

Final velocity = 550m/s

Initial velocity  = 0m/s

Unknown:

Time taken  = ?

Solution:

To solve this problem, we are going to use one of the motion equations:

                 v  = u + at

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time taken

                  550 = 0 + 25 x t

                  550  = 25t

                    t  = 22s

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What is the best way to determine if an aqueous solution of sodium nitrate is unsaturated
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It may be noted that, solubility of system is depends on temperature. 

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A solution of NaCl ( aq ) is added slowly to a solution of lead nitrate, Pb ( NO 3 ) 2 ( aq ) , until no further precipitation o
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Number of moles of PbCl2 precipitated = mass/molar mass

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