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Vinil7 [7]
3 years ago
13

There is a bell at the top of a tower that is 45m high. The bell weighs 19kg. The bell has

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer:

Hi, there!

The bell has 8550 J energy.

The Correct Answer Is Potential energy

workdone by the gravitational force = 190 × 45 × (-1)

= -8550 J

we know, potential energy = negative of workdone

= -(-8550 J) = 8550 J

xXxAnimexXx

Have a great Day!

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The function y=-16x^2+16x+32 represents the height in feet of a firework x seconds after it is launched
Nadya [2.5K]

Answer:

36feet

Step-by-step explanation:

Since we are not asked what to find, we can as well find the maximum height reached by the rocket

At max height, velocity is zero

V = dy/dx = 0

dy/dx = -32x + 16

0 = -32x+16

32x = 16

x = 16/32

x = 0.5s

Get the maximum height

y = -16(0.5)^2+16(0.5) + 32

y = -4+8+32

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8 0
3 years ago
A water tank is 5/8 full. It needs 330 Litres to fill it. What will the tank hold when full? ​
Allisa [31]

Answer:

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Step-by-step explanation:

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you want to work out what 8/8 is

the first step you would take is to find 1/8. you can do this by dividing by 5

therefore 1/8 is 66 Litres (what you do to one side, you must do to the other)

now, you are able to find 8/8. you do this by multiplying both sides by 8

therefore you get 8/8 or 1 whole is 528 Litres

8 0
3 years ago
If one endpoint is (5,2) and the midpoint (-10,-2) what is the second endpoint​
aalyn [17]

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Step-by-step explanation:

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2 to -2 is a 4 unit negative transition on the y axis

7 0
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Well, it might be something like 18x-6 = 78x2?

Have you tried that?

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Step-by-step explanation:

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