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kenny6666 [7]
2 years ago
8

Which statement is a hypothesis?

Physics
2 answers:
olga_2 [115]2 years ago
3 0
B, do earthworms prefer bright light or darkness!
jarptica [38.1K]2 years ago
3 0

B IS THE ANSWER. I JUST TOOK THE QUIZ.

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An advertising balloon shaped like a giant soda can is 15 feet tall and 7 feet wide. How many cubic feet of helium will be neede
Iteru [2.4K]

Answer:

576.975 cubic feet of helium will be needed to fully inflate the balloon

Explanation:

To determine how many cubic feet of helium will be needed to fully inflate the balloon, we will determine the volume of the balloon.

From the question,

The balloon is shaped like a giant soda can.

A giant soda can is cylindrical.

Hence, we can determine the volume of the balloon shaped like a giant soda can by using the formula for finding the volume of a cylinder.

The formula for finding the volume of a cylinder is

V = πr²h

Where V is the volume of the cylinder

π is a constant (Take π = 3.14)

r is the radius of the cylinder

and h is the height of the cylinder

From the question, the balloon is 15 feet tall and 7 feet wide

Hence,

Height, h = 15 feet

Width = 7 feet

(NOTE: The width of a cylinder is the same as the diameter)

Then, diameter = 7 feet

Radius, r is given by

Radius = Diameter / 2

Then, Radius = 7 feet / 2 = 3.5 feet

∴ Radius, r = 3.5 feet

Now, for the volume of the balloon,

V = πr²h

V = 3.14 × (3.5)² × 15

V = 3.14 × 12.25 × 15

V = 576.975 cubic feet

This is the volume of the balloon.

Hence, 576.975 cubic feet of helium will be needed to fully inflate the balloon.

5 0
3 years ago
How many protons does Aluminum have?
Lorico [155]

Answer:

The atomic number of Aluminum is "13"!

Explanation:

The 27 means the atomic mass is 27 . The number of protons plus the number of neutrons is 27. That means the number of neutrons is 27–13=14. Number of neutrons depends on the isotopic form of aluminium.

5 0
3 years ago
An 80kg parachutist jumps out of an airplane. Neglecting air friction, how fast will he be going after a 10 second free fall?
olganol [36]
If he is jumping you are adding force which means that you will be falling twice as fast
6 0
3 years ago
Maya and Kenzie are discussing oil spills and how they impact the environment. How can humans help reduce the impact of oil spil
madam [21]

The correct answer is A.

6 0
3 years ago
Read 2 more answers
First to answer will be the brainliest i need the answer ASAP
slavikrds [6]
The answer is chemical.
5 0
3 years ago
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