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JulsSmile [24]
3 years ago
15

A man enters a tall tower, needing to know its height. he notes that a long pendulum extends from the ceiling almost to the floo

r and that its period is 15.3 s. how tall is the tower
Mathematics
1 answer:
myrzilka [38]3 years ago
3 0
A man enters a tall tower, needing to know its hieght. He notes that a long pendulum extends from the ceiling almost tothe floor and that its period is 15.5s. (a) How tall isthe tower? (b) If this pendulum is taken to the Moon,where the free-fall acceleration is 1.67m/s2, what isthe period there?T=15.5s(a) L=T2g/4π<span>2</span>
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A heron is perched in a tree 50 feet above sea level. Directly below the heron, a pelican is flying 17 feet above sea level. Dir
Olegator [25]

Answer:

A. The difference in height between the pelican and the heron is -33 feet.

E. The difference in height between the pelican and the trout is 40 feet.

F. The distance between the heights of the pelican and the trout is 40 feet.

Step-by-step explanation:

<h3> The missing statements are:</h3><h3> A. The difference in height between the pelican and the heron is -33 feet</h3><h3> B. The difference in height between the pelican and the heron is 33 feet</h3><h3> C. The distance between the heights of the pelican and heron is -33 feet</h3><h3> D. The difference in height between the pelican and the trout is -40 feet</h3><h3> E. The difference in height between the pelican and the trout is 40 feet</h3><h3> F. The distance between the heights of the pelican and the trout is 40 feet.</h3><h3 />

Let be 0 the sea level.

Since the heron is perched in a tree 50 feet above sea level and directly below the heron the  pelican is flying 17 feet above sea level, you can find the difference in height between the pelican and the heron by subtracting 50 feet from 17 feet.

Then, you get that this is:

17\ feet-50\ feet=-33\ feet

Now, according the the information given in the exercise, you know that the trough is swimming directly below them and its height is 23 feet below sea level. If you represent this with an integer, this is:

-23

Therefore you can find the difference in height between the pelican and the trout through the following subtraction:

17\ feet-(-23\ feet)=17\ feet+23\ feet=40\ feet

And the distance between them is 40 feet too.

8 0
4 years ago
3.5 expressed in words is:
mart [117]
Yes, i believe the answer is true, have a great day :)
4 0
4 years ago
Read 2 more answers
An Olympic-size swimming pool holds 2,500 kiloliters of water. After swimmers splash water out of the pool, there are 24,500 hec
ycow [4]
There are 25,000 hectoliters in 2,500 kiloliters. So, subtract 25,000-24,500 and you have your answer, which is 500 hectoliters. :)
6 0
3 years ago
If 2x + 3z = 12, and z = -2, then x=6 <br> true or false
zalisa [80]
2x + 3z = 12 <span>and z = -2, then x=6 
</span><span>
2x + 3(-2) = 12
2x = 18
  x = 9

answer

False </span>
4 0
3 years ago
Your mom pays you $10 a week plus $5 for every A you make on a test. If you want to make $35 one week, how many A's do you need
steposvetlana [31]

you have to make 5 A's, this is because 35-10=25 25/5=5 and 5x5 = 25 + 10= 35

final answer: 5 A's

7 0
3 years ago
Read 2 more answers
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