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rodikova [14]
3 years ago
7

At what height h should the block be released from rest so that it is on the verge of losing contact with the track at the top o

f the loop?
Mathematics
1 answer:
quester [9]3 years ago
5 0
Sdq637i8ey3i462q612437r284rt7
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Find the median for the following set of numbers. 5, 19, 2, 28, 25 2 5 19 25
vredina [299]
Step 1: List the numbers in order (Least - Greatest): 2, 2, 5, 5, 19, 19, 25, 25, 28
Step 2: Find the middle number: <span>2, 2, 5, 5, 19, 19, 25, 25, 28
Answer: 19
(Information for further questions): If there are 2 middle numbers,  average them. (Add them up and divide by 2)
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4 years ago
What is the angle between a=7i+3j and b=4i-j​
PolarNik [594]

a\cdot b=(7)(4)+(3)(-1)=25\\\\|a|=\sqrt{7^{2}+3^{2}}=\sqrt{58}\\\\|b|=\sqrt{4^{2}+(-1)^{2}}=\sqrt{17}\\\\\cos \theta=\frac{25}{\sqrt{58}\sqrt{17}}\\\\\theta=\cos^{-1} \left(\frac{25}{\sqrt{58}\sqrt{17}} \right) \approx 37.235^{\circ}

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2 years ago
Which weighs more, 5 ounces or 150 grams?
gtnhenbr [62]
150 grams weighs more. The number of ounces converted to grams would be about 142 grams. 
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3 years ago
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On Friday, Andre biked 60 miles in 4 hours at a constant rate. On Saturday, he biked at a rate that was 4 mph slower. What was h
cricket20 [7]
11 miles per hour

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I need help please I'm in K12
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The top right one is the answer. I hope this helps
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