1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PSYCHO15rus [73]
2 years ago
7

Cool air tends to...

Physics
1 answer:
IceJOKER [234]2 years ago
3 0

Answer: C. Be more dense and flow under warm air.

Explanation:

think of a supermarket selling dairy products and when you open the fridge to get the milk, outside the supermarket is hot and inside the fridge is cold ice.

You might be interested in
How fast does a 3 kg rocket accelerate if a force of 140 N is applied?
elixir [45]
<h3>Answer:</h3>

46.67 m/s²

<h3>Explanation:</h3>

<u>We are given;</u>

  • Mass of a rocket = 3 kg
  • Force applied = 140 N

we are supposed to calculate the acceleration of the rocket;

  • We are going to use the second Newton's law of motion;
  • According to Newton's second Law of motion force is equivalent to the product of mass and acceleration.
  • This is from the fact that the resultant force and the rate of change in linear momentum are directly proportional.

Therefore;

F = Ma

In this case;

Rearranging the formula

a = F ÷ m

  = 140 N ÷ 3 kg

  = 46.67 m/s²

Thus, the acceleration of the rocket is 46.67 m/s²

3 0
4 years ago
Which best describes what happens to sunlight after passing through the keyhole of a door
Law Incorporation [45]
Given the answers I would say B, Is your best choice because when the light goes through a hole it spreads out, because most light rays (<) outward.
7 0
4 years ago
PLEASE HELP !!
Paraphin [41]
Distance from the reference point
7 0
3 years ago
Consider a plywood square mounted on an axis that is perpendicular to the plane of the square and passes through the center of t
belka [17]

Answer:

T= 8.061N*m

Explanation:

The first thing to do is assume that the force is tangential to the square, so the torque is calculated as:

T = Fr

where F is the force, r the radius.

if we need the maximum torque we need the maximum radius, it means tha the radius is going to be the edge of the square.

Then, r is the distance between the edge and the center, so using the pythagorean theorem, r i equal to:

r = \sqrt{(0.38m)^2+(0.38m)^2}

r = 0.5374m

Finally, replacing the value of r and F, we get that the maximun torque is:

T = 15N(0.5374m)

T= 8.061N*m

4 0
4 years ago
Please help don’t know how to show my work
Fudgin [204]

Answer:

64.50816

Explanation:

3 0
3 years ago
Other questions:
  • Who makes sure that planes fly in and out of airports safely and do not run into each other in the skies?
    10·1 answer
  • An elderly sailor is shipwrecked on a desert island but manages to save his eyeglasses. The lens for one eye has a power of 1.28
    15·1 answer
  • Based on the wall of conservation of energy how can we reasonably improve a machines ability to do work?
    14·1 answer
  • A boat that travels 3.00 m/s relative to the water is crossing a river that is 1.00 km wide. The destination on the far side of
    7·1 answer
  • Simple machines make work easier. Most simple machines reduce the amount of effort force needed to move an object. This cart has
    7·2 answers
  • Define 1ohm resistance​
    10·1 answer
  • EVERYONE BE AWARE IF YOU GET SENT SOMETHING LIKE THIS (Answer is in the photo. I can only upload it to a file hosting service. l
    7·1 answer
  • _______ is the natural science that involves the study of matter and how it moves
    14·2 answers
  • The speed of the car in diagram is 34 km/h What is the speed in ms-1 ?
    9·1 answer
  • What distance will be traveled if you are going at an average speed of 420 km/hr for 45 minutes?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!