Why does hot air rise?

Answers

Answer 1

Answer: It rises because hot air is less dense than cool air.

Answer 2

Answer: Difference in the densities.

Related Questions

He is best known for publishing an almanac based on my astronomical calculations. Who is it?
A temperature of 200°F is equivalent to approximately A. 232°C. B. 93.3°C. C. 840°C. D. 37.8°C.
A child is given an initial push on a rope swing. On the first swing, the rope swings through an arc of 12 feet. On each successive swing, the length of the arc is 80% of the previous length. After 14 swings, what total length will the rope have swung? When the child stops swinging, what total length will the rope have swung?
Which of the following is a scalar quantity?
Light can travel through a medium, but it does not require a medium.a. Trueb. False

Make the following conversion.
24.7 mL = _____ cm3
247
2470
2.47
24.7

Answers

since 1ml = 1 cm cubed its gonna be 24.7

24.7.....................................

Objects with greater mass have a weaker force of gravity between them.

True
False

Answers

False, more massive objects exert a stronger gravitational force.

a string is attached to the rear-view mirror of a car. a ball is hanging at the other end of the string. the car is driving around in a circle, at a constant speed. which of the following lists gives all of the forces directly acting on the ball?

Answers

The correct answer for the question that is being presented above is this one: "b. tension, gravity and centripetal force." It gives all of the forces directly acting on the ball.

Here are the following choices:
a. Tension and gravity
b. tension, gravity and centripetal force
c. Tension
d. Tension gravity centripetal force and frictional force

What is the Sun's right ascension on the vernal equinox?a. 0 hours
b. 6 hours
c. 12 hours
d. 18 hours

Answers

the suns right ascension on the vernal equinox is (a) 0 hours

The weight of an object will not change when moving from the Earth to the Moon. a. True
b. False

Answers

False! Because it turns from weight to mass

False - Weight will be reduced as you move further away from the Earth's gravitional pull, however mass will stay constant.

Which one of the following is true a. momentum results in a change of force
B. a force results in a change of momentum

Answers

Answer:

Explanation:

You need a specific force to change the momentum of something.

Hope this helps!

Other Questions

two pendulums of lengths 100cm and 110.25cm start oscillating in phase. after how many oscillations will they again be in same phase?

The ____ states that between 15 and 20 billion years ago, the universe began expanding out of an enormous explosion. A. H-R diagram B. binary star theory C. Big Bang theory D. "big crunch" theory

The _____ theory is the most accepted theory regarding the origin of the solar system. It suggests that our star, the Sun, was first created by a cloud of dust and gas.

In the lungs there are tiny sacs of air, which are called alveoli. an oxygen molecule is trapped within a sac, and the uncertainty in its position is 0.12 mm. what is the minimum uncertainty in the speed of this oxygen molecule?