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Karo-lina-s [1.5K]
3 years ago
15

One of the tallest radio towers is in Fargo, North Dakota. The tower is 629.9 m tall. If a bird lands on top of the tower, so th

at the gravitational potential energy associated with the bird is 2033.76 J, what is its mass, in kilograms?
Mathematics
1 answer:
Leya [2.2K]3 years ago
4 0
Mass × gravitational energy × height
= gravitational potential energy
= joules

by interrelating the formula,

mass (unknown) × 10 × 629.9
= 2033.76

unknown = 0.32??

this is my working ^ but I'm not positive that it's 100% correct!
You might be interested in
A pile of sand has a weight of 90 kg the sand is put into a small bag a medium bag and a large bag in the ratio 2:3:7
romanna [79]

Answer:

15 kg, 22.5 kg, 52.5 kg

Step-by-step explanation:

Let the common multiplier of the given ratios be x. Therefore, weights of each bag would be 2x, 3x and 7x

According to the given information:

2x + 3x + 7x = 90 \\ 12x = 90 \\ x =  \frac{90}{12}  \\ x = 7.5 \:  \\  \implies \\ 2x = 2 \times 7.5 = 15 \: kg \\ 3x = 3 \times 7.5 = 22.5 \: kg \\ 7x = 7 \times 7.5 = 52.5 \: kg

Hence the weight of sand in bag would be 15 kg, 22.5 kg and 52.5 kg

3 0
3 years ago
Which numbers are equivalent to this expression
IRINA_888 [86]

Answer:

0.05

Step-by-step explanation:

When you subtract 1 3/4 by 0.25, as a decimal is 1.5 and when you divide 1.5 by 30, you'll get 0.05.

Tell me if I'm wrong or not.

3 0
3 years ago
Please answer now ! 90 points
ozzi

Step-by-step explanation:

  • 2+3b\leq25

b=books

3b\leq23

b\leq 23/3

b\leq 7.67

  • 50+25L\leq200

L=lesson

25L\leq150

L\leq6

Hope that helps :)

7 0
3 years ago
Read 2 more answers
Please help BRAINLIEST
Veseljchak [2.6K]
A) (1,3)
B) (-4,0)
C) (-6,0)
D) (2,4)
E)cant do E

I don’t know if there are other questions because I can only see up to E.
I hope this helped though and please mark as brainliest
7 0
3 years ago
If ABC=DEF and m <E= 2(m-15)° find m​
Lostsunrise [7]
<h3>Answer:  m = 25</h3>

====================================================

Work Shown:

Triangle ABC is congruent to triangle DEF. The order of the lettering is important because it tells us how the angles pair up. We see that angle B and angle E are the second letters of ABC and DEF respectively. Because the triangles are congruent, this leads to angle B = angle E.

Angle B is shown to be 20 degrees, so,

angle E = angle B

2(m-15) = 20

m-15 = 20/2

m-15 = 10

m = 10+15

m = 25

------------------

A slightly alternative way to solve:

2(m-15) = 20

2m-30 = 20

2m = 20+30

2m = 50

m = 50/2

m = 25

------------------

Checking the answer:

2(m-15) = 20

2(25-15) = 20

2(10) = 20

20 = 20

We get the same thing on both sides, so we end up with a true equation. This means the first equation is true when m = 25. The solution has been confirmed.

3 0
3 years ago
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