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melisa1 [442]
3 years ago
6

10. Juan wants to see how air expands when it is heated. He is able to use any of the following supplies - a balloon, a heat lam

p, a spring scale, and a meter stick. Which is the best procedure to follow for the experiment?
A. Measure the weight of the deflated balloon, inflate the balloon, heat the balloon with the heat lamp, then measure the inflated balloon's width.
B. Inflate the balloon, measure the width of the balloon, heat the balloon using the heat lamp, and then measure the width again.
C. Use the spring scale to measure the weight of the balloon before and after it is blown up.
Physics
2 answers:
kondaur [170]3 years ago
7 0

Answer:

When designing an experiment, always keep in mind the question that needs to be answered.

In Juan's case, he wants to see how air expands when heated. Therefore, he will need to inflate the balloon, measure the width of the balloon, heat the balloon using the heat lamp, and then measure the width again.

Explanation:

zmey [24]3 years ago
4 0

Inflate the balloon, measure the width of the balloon, heat the balloon using the heat lamp, and then measure the width again.

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3 years ago
Longitudinal sound waves cannot propagate through
strojnjashka [21]

Answer:

A vacuum

Explanation:

Sound waves are examples of mechanical waves. Mechanical waves are waves which are transmitted through the vibrations of the particles in a medium.

For example, sound waves in air consist of oscillations of the air particles, which vibrate back and forth (longitudinal wave) along the direction of propagation of the wave itself.

Given this definition of mechanical wave, we see that such a wave cannot propagate if there is no medium, because there are no particles that would oscillate. Therefore, among the choices given, the following one:

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3 0
2 years ago
I need help me with my question
lisov135 [29]

The tilt of the moon's axis does not allow for monthly alignment, so the lunar and solar eclipse do not happen every month.

<h3>How do the lunar and solar eclipse occur?</h3>
  • For the occurrence of lunar and solar eclipse, the sun, moon and the earth must remain in a plan and along a straight line.
  • When the earth appears in between the sun and the moon, lunar eclipse occurs.
  • When the moon appears in between the sun and the earth, solar eclipse occurs.
  • The moon and earth are rotating not only around the sun, but also around the black hole of Milky way galaxy.
  • So they are not present in a plan as well as in a straight line in every full moon and new moon time.

Thus, we can conclude that the option D is correct.

Learn more about the lunar eclipse and solar eclipse here:

brainly.com/question/8643

#SPJ1

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2 years ago
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lisabon 2012 [21]

Answer:

Answer: It allows people to rapidly heat items

Hope this helps!

Explanation:

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3 years ago
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