The mass of hydrogen atoms that measures 54 u is 89.64 x 10^-24
Analysis:
If 1 u = 1.66 x 10^-24, then 54 u = 54 x 1.66 x 10^-24 = 89.64 x 10^-24
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200 I’m pretty sure Yea your gonna have to trust your gut with this one
Answer:
3.5 cm
Step-by-step explanation:
2.5 is half of 5 so you divide 7 by 2 and you get 3.5
It not a right angle or an obtuse angle, so it has to be a acute angle, so angle x would be 50 or 55 degrees.
right angle:90 degrees.
obtuse angle: greater than 90 less than 180.
acute angle: less than 90 degrees.
Answer: 240 feet squared
Step-by-step explanation: A=(b1+b2)h is formula used for trapezoids.
Plug the appropriate numbers in and solve.
