This question is about the Earth's atmosphere and light/sound waves.

Please help! I haven't really been able to understand this topic :/

The distance versus time graph for Object A and Object B are shown.

{IMAGE} A graph titles Distance vs Time. A curved line is drawn through point 10 on y axis and this line is labeled Object A. The graph for Object B is a straight slanting line passing through the origin

Which statement best describes the motion of Object A and Object B?

Both objects move with variable speed.
Both objects move with constant speed.
Object A moves with constant speed and Object B moves with variable speed.
Object A moves with variable speed and Object B moves with constant speed.

Look at the image below and answer..
a. All matter and energy were contained inside the small point.
b. Matter and energy came from dark areas of the universe and were attracted to the small point.
c. Matter and energy fell into the small point the same way a black hole attracts matter and energy.
d. Matter was condensed into a single point until energy was attracted to the matter from dark areas of the universe.

Does mass influence how quickly an object falls?

15 points! Middle School Physical Science.

The image below shows a large, warm ocean next to a continent with a coastal mountain range.
If an air mass formed at the location labeled “Air Mass Formation”, what properties would the air mass most likely have? Choose one answer below.

View the photo below, read the passage, and answer the question.



The arcs in the photo are background galaxies that were distorted and magnified by a giant cluster of dark matter. As the light leaves its source, the gravity of the cluster of dark matter bends that light, creating the swoops in the image above.

This passage best supports which conclusion about dark matter?

a. Dark matter does not give off light, but scientists can see the reflection in stars around it
b. Dark matter is created from clouds of dust and gas scattered throughout the universe
c. Dark matter has a significant impact on the stellar life cycle
d. Dark matter does not give off light, so it can only be detected by observing the effects of gravity on visible objects nearby

Please check my answers.

The distance versus time graph for Object A and Object B are shown.


[IMAGE] A graph titles Distance vs Time. A curved line is drawn through point 10 on y axis and this line is labeled Object A. The graph for Object B is a straight slanting line passing through the origin


Which statement best describes the motion of Object A and Object B?


Both objects move with variable speed.

Both objects move with constant speed.

Object A moves with constant speed and Object B moves with variable speed.

Object A moves with variable speed and Object B moves with constant speed.

This question is about sound waves and light waves.

Recall that if the colliding objects have hard surfaces, the collision is elastic. Based on this description, which bumper design is more likely to result in an elastic collision? Predict how this bumper design will change the force that car 2 experiences during the collision.

Had to repost got deleted


Fill in the blank.

I gatta _____ ___ walk and _____ ___ mouth
- Megan thee stallion

What are somethings about the Heliocentric model?

Please help! And no absurd answers please, I asked this a bit ago and I got super odd answers aha

Place these waves in order from shortest wavelength to longest.
light waves, ocean waves and, sound waves

Which statement describes how globes represent Earth’s surface?

O They model all of Earth’s surface.
O They are flat and two dimensional.
O They represent underwater features using symbols.
O They provide detailed information about towns or cities.

Please help I don’t know the answer, I’m horrible in science

Periodic table of elements metals and nonmetals questions

Mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape. He decides to increase the time the two metals are in contact, use a larger metal iron, and use a new metal material with a higher specific heat.

Where is Mintu's error?

Mintu should have decreased the size of the metal iron.
Mintu should have decreased the time he touches the two metals.
Mintu should have chosen a material with a lower specific heat.
Mintu should have chosen a material the same temperature as the iron.

20 points

A physics student weighing 500 N stands on a scale in an elevator and records the scale reading over time.

The data is
shown in the graph above. At time t= 0, the elevator is at rest on the ground floor.

What is the acceleration of the student
from 10-15 s?

Fill in the blank.
You don’t ____ me thass fine _ ___

-Man Tiffany

Which statements describe density? Check all that apply.
A. Density is a chemical property of an object.
B. The density of an object is constant.
C. Density is a derived unit of measure.
D. Density is the sum of the mass and volume of an object.
E. The density of an object determines whether it will sink or float.​

Reasoning = EXPLAIN each piece of evidence and HOW it supports your claim. Make sure this is thorough and IN YOUR OWN WORDS.

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. Make your claim and support it with evidence/reasoning. Write using complete sentences. 1st Law - Law of Inertia

2nd Law - Law of Force and Acceleration

3rd Law - Law of Action-Reaction

Which refers to the amount of heat required to change the temperature of 1 gram of a substance by 1°C and is related to the chemical composition of the substance?

Thermal energy
Specific heat
Activation heat
Boiling point

30 points

What happens when warm air rises? (5 points) (will give brain)

a
Global temperature decreases.

b
The movement creates a difference in air pressure.

c
Cool air rises with it.

d
It moves towards the poles.

Which of these describes the part of the water cycle happening at D

A student is getting ready to go on a bike ride, but her bike’s back tire is flat! She connects a pump to the valve and adds air to the tire until it is fully inflated and ready to ride.

After the addition of air to the tire, the air pressure inside the tire is now __________ the air pressure outside the tire.

Fill in the blank by choosing one answer below.

Identify at least one example each of absorption, transmission, reflection, and refraction of waves in this photograph.

This chart lists four examples of two objects that are in contact.

A 3-column table with 4 rows. The first column has entries Example 1, Example 2, Example 3, Example 4. The second column labeled Object 1 has entries fire, a metal at 80 degrees Celsius, the cool ocean, a tool with a lot of thermal energy. The third column labeled Object 2 has entries air, a metal at 12 degrees Celsius, the warm air, a material with little thermal energy.

Which statement accurately describes the flow of heat in each example?

Heat will flow from Object 1 to Object 2 in examples 2 and 4, and heat will flow from Object 2 to Object 1 in examples 1 and 3.
Heat will flow from Object 1 to Object 2 in examples 1 and 3, and heat will flow from Object 2 to Object 1 in examples 2 and 4.
Heat will flow from Object 1 to Object 2 in Example 3, and heat will flow from Object 2 to Object 1 in examples 1, 2, and 4.
Heat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3.


30 points