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3 years ago

For which of these questions could a testable hypothesis be developed? Check all that apply.

2 answers:

8 0

-- <span>Does the width of a rubber band affect how far it will stretch?

-- How does the thickness of a material affect insulation?

You could take a guess at the answer to each of these,
and then test to see if your guess is correct.

</span>

timurjin [86]3 years ago

7 0

Answer:

A.) Does the width of a rubber band affect how far it will stretch?

B.) How does the thickness of a material affect insulation?

C.) Do all objects fall to the ground at the same speed?

Explanation:

just did the assignment

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A 0.0434-m3 container is initially evacuated. Then, 4.19 g of water is placed in the container, and, after some time, all of the

adell [148]

Answer:

P =18760.5 Pa

Explanation:

Given that

Volume ,V= 0.0434 m³

Mass ,m= 4.19 g = 0.00419 kg

T= 417 K

If we assume that water vapor is behaving like a ideal gas ,then we can use ideal gas equation

Ideal gas equation P V = m R T

p=Pressure ,V = Volume ,m =mass

T=Temperature ,R=Universal gas constant

Now by putting the values

P V = m R T

For water R= 0.466 KJ/kgK

P x 0.0434 = 0.00419 x 0.466 x 417

P =18.7605 KPa

P =18760.5 Pa

Therefore the answer is 18760.5 Pa

6 0

4 years ago

Choose the option that correctly answers and explains the question, "If the sum of the forces acting on an object equals zero, d

rusak2 [61]

Answer:No it means that the object is at equilibrium

Explanation:

The sum of force acting opposite is equal to zero if forces are equal.

6 0

4 years ago

Read 2 more answers

A stunt driver drives a car horizontally off the edge of a cliff at 3.8m/s and reaches the water below 2.5s later.

andreyandreev [35.5K]

A. The cliff was 30.7 m high
B. I also got 9.5 as the horizontal distance

Here is my work, I find making charts like this one to find knowns and unknowns can be helpful

4 0

3 years ago

Removing the radiator cap is advisable as it will help release steam and cool an overheated engine quicker.

stepan [7]

Answer:

False.

Explanation:

Removing the radiator cap will harm you. If the engine is hot and you open the radiator cap then it will cause the liquid boil, pushing the coolant out of the radiator and spraying around the liquid which can harm the person who is opening that cap. So you should aware of the risk and be prepared to avoid danger.

5 0

4 years ago

Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject materia

melisa1 [442]

Answer:

$H_2 = 91.55 km$