Physics Middle School

Help Please. Me don't understand

Answers

Answer 1

Answer:

Explanation:

It will aplly equal force

Answer 2

Answer:

it should be B

Explanation:

Related Questions

Compare and contrast Continental Drift and Plate Tectonics.
1. what are 4 things that both Continental Drift and Plate Tectonics have in common?
2. What are 4 things that only continental drifts have?
3. What are 4 things that plate tectonics only have?

Answers

Answer:

1. They both have a natural relationship with friction and temperature along with psychics 2. they all have different natural bioms

Explanation:

Which design will launch the roller coaster car the fastest?

IN CER format

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Answer:

I think Nevi's design will launch the roller coaster car the fastest. The magnets on the launcher and the magnets of the car are set up so opposite poles are facing each other. This arrangement would cause a repelling force, which would launch the car forward.

Can someone help me ASAP on this science question

Answers

D because 15 kg weighs less and therefore it will result in the greatest change in speed

Let me know if I’m right

Why do organisms eat food? Be sure to explain your answer.

Answers

Answer:

Explanation:

Why do organisms eat food? Be sure to explain your answer.

Organisms need to eat food to get energy. They need the energy to perform an activity or function. To add on, it develops the immunity to fight against infectious diseases. It contains essential nutrients to maintain life and growth.

Sample Response: Organisms eat to obtain carbohydrates, lipids, and proteins, which are found in food. They then use these molecules for energy and growth.

What did you include in your response? Check all that apply.

Organisms eat food to obtain carbohydrates, lipids, and proteins, which are found in food.

Organisms use these molecules for energy and growth.

Answer:

Explanation:

The work input = _____.

F i ÷ d i
F o ÷ d o
F o × d o
F i × d i

Answers

The work input = Fi × di

How to solve for work input?

To solve for work input, you need to know the force acting on an object and the distance it moves in the direction of the force. Work input is defined as the product of force and distance, given by the formula:

Work Input = Force × Distance × cosθ

Where θ is the angle between the force vector and the direction of motion. If the force is applied in the direction of motion, then θ = 0 and cosθ = 1, so the formula simplifies to:

Work Input = Force × Distance

For example, if you are pushing a box with a force of 50 newtons over a distance of 10 meters, the work input would be:

Work Input = 50 N × 10 m × cos(0°) = 500 Joules

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Answer: F i × d i

Explanation:

PLEASE HELP ASAP
Describe the structure of the inner core? The inner core is made of no solid rocks. The inner core is made of liquid metal. The inner core contains melted rocks. The inner core is made of solid iron and nickel.

Answers

The inner core is made up of the heaviest metals, like iron and nickel. The inner core is solid, but the outer core is liquid.

Answer:

The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometers (758 miles). Temperature in the inner core is about 5,200° Celsius (9,392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm)

Please help! I’ll give Brainliest

Answers

9.8 is correct because that’s how long it takes the ball to hit the ground

Which item produces the magnetic field in the electromagnet?

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The magnet produces a magnetic field. Item A makes the magnetic field in the electromagnet.

Explanation:

Item A is called a magnet. It has a North pole and a South pole. The electrons move from the North to the south poles, creating a magnetic force.

This Magnetic field creates a magnetic field around a magnet.

Answer: D

Explanation: it is made of metal which attracts the magnetic force field

In the reference image, there is a pie graph illustrating the composition of Earth’s atmosphere. What is the most abundant gas making up Earth’s atmosphere? How much of Earth’s atmosphere is comprised of oxygen?

Answers

The answer is B ok so yeah hope this helped

Answer.) The answer is B hope this helped!

Describe three ways a bicyclist can change velocity.

Answers

Answer:

changing their speed, changing direction, or when both speed and direction change

Explanation:

changing their speed,

changing direction,

or when both speed and direction change

The three ways a bicyclist can change velocity is,

AccelerationSlow down the speedChanges in the frictional force.

What is the Velocity?

The frequency as well as direction of modification mostly in location of an item is measured is a Velocity. Also velocity can be defined as the rate and direction of object's movement.

The three techniques by which a bicyclist may modify the speed or velocity, including such as:

The bicyclist will first try to apply additional energy and motivation, i.e., the acceleration in which it can completely speeds up.The bicyclist will release the elastic potential energy or displacement by descending a hill as well as increasing speed in which the speed or velocity will get slow.The bicyclist should pertain less power to slow things down and also he should notice the frictional force of the bike.

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What is a major drawback of nuclear energy? (1 point)

Answers

Answer:

Nuclear waste

Explanation:

It is extremely radioactive and can remain radioactive for hundreds of years.

Nuclear waste is extremely dangerous, hard, and costly to deal with.

Nuclear disasters are also very important and one of the major downsides of nuclear energy. Take Chernobyl for an example, the radiation produced by nuclear energy can cause plants animals and humans to suffer from diseases, mutations, and malfunctions. They also cosmetically damage skin and the environment with chemicals.

a student has two substances at a lab table. He drops both into a graduated cylinder and records his data on the table below. if the density of the gold is almost 4 times more than iron pyrite. approximately how much water will be displaced by the gold? answers: a) 4ml b) 16 c)20 d)1

Answers

Answer:

1ml

Explanation:

It’s is 16 because 4.0 ml is the iron pyrite and hold is 4x more than iron pyrite so it has to be 16

When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure

note: apparently the answer is friction but it doesn't make sense to me so please explain.

Answers

The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.

I hope this helps!

I think its pressure, please dont take my word for it, take this with a grain of salt, Have a great day<3

Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity

Answers

Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

A student wants to design an investigation to determine if an object has potential energy. What are some questions the student could ask to determine if the object contains potential energy? (Select 2)

Does the object have kinetic energy?

Does the object move when it is released from a rest position?

Does work have to be done to hold the object in place?

Does a force act on an object?

Is the object part of a system?

(i had another attempt, and 2 and 5 were innocent)

Answers

Response... Option 1 & 4

Question 1 and he could ask the position of the object because potential energy is an energy due to the object’s position

which types of EM radiation from the sun are most likely to reach Earth's surface, waves with short wavelengths or those with long wavelengths? Explain.

Answers

Which types of EM waves can reach Earth's surface?

Most electromagnetic radiation from space is unable to reach the surface of the Earth. Radio frequencies, visible light and some ultraviolet light makes it to sea level. Astronomers can observe some infrared wavelengths by putting telescopes on mountain tops.

Electromagnetic radiation with the shortest wavelengths, no longer than 0.01 nanometer, is categorized as gamma rays (1 nanometer = 10–9 meters; see Units Used in Science). The name gamma comes from the third letter of the Greek alphabet: gamma rays were the third kind of radiation discovered coming from radioactive atoms when physicists first investigated their behavior. Because gamma rays carry a lot of energy, they can be dangerous for living tissues. Gamma radiation is generated deep in the interior of stars, as well as by some of the most violent phenomena in the universe, such as the deaths of stars and the merging of stellar corpses. Gamma rays coming to Earth are absorbed by our atmosphere before they reach the ground (which is a good thing for our health); thus, they can only be studied using instruments in space.

Electromagnetic radiation with wavelengths between 0.01 nanometer and 20 nanometers is referred to as X-rays. Being more energetic than visible light, X-rays are able to penetrate soft tissues but not bones, and so allow us to make images of the shadows of the bones inside us. While X-rays can penetrate a short length of human flesh, they are stopped by the large numbers of atoms in Earth’s atmosphere with which they interact. Thus, X-ray astronomy (like gamma-ray astronomy) could not develop until we invented ways of sending instruments above our atmosphere (Figure 2).

Someone places a spoon in hot water. The spoon remains in the water till the water becomes room temperature, what temperature is the spoon handle?

Answers

Answer: Room temperature

Explanation: it makes sense (sorry if its wrong)

The spoon will be hot since it was in hot water

This is a science question

Answers

The air currents across the continents would determine the distribution of the air.

What are air currents?

Air currents across the continents are primarily driven by temperature differences and the rotation of the Earth. The warm air near the equator rises and flows towards the poles, while the cooler air near the poles sinks and flows towards the equator.

This creates large-scale circulation patterns known as Hadley cells, Ferrell cells, and Polar cells. These cells are responsible for the trade winds, westerlies, and easterlies, respectively. Additionally, there are also local winds caused by differences in terrain, such as sea breezes and valley breezes.

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what are two reasons scientists separate mixtures?

Answers

The substances in a mixture are separated by the differences in their physical properties, such as their particle size. The more different the properties are, the easier it is to separate the substances

Differential physical characteristics, such as particle size, are used to separate the constituents of a mixture. Separating the compounds is made easier by how diverse their properties are.

What is a mixture?

A mixture is a substance comprised of two or more dissimilar elements that are not chemically linked. When two substances are physically combined, their identities are retained, and the result resembles the form of liquids, suspensions, or colloids.

Chemical elements and combinations, among other things, can be mechanically blended or mixed to create mixtures with causing any chemical interaction or other changes to the individual ingredients' chemical properties or make-up.

Even though the constituents do not experience any chemical changes, a mixture's physical characteristics, such as its melting temperature, may be different from that of the parts. Physical methods can be used to physically separate some mixes into their constituent elements.

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Please Help Me!!!!!!

Answers

Answer:

C: Electrical to chemical

the electricity turns into chemical energy to light the candle.

electrical chemical!!

What is different about the conditions when hail, snow, and sleet form compared to when rain forms?

Answers

Answer:

Sleet forms in winter storms, while hail is a warm-season type of precipitation. As noted above, sleet forms when snow melts in a warm layer and then refreezes into ice pellets as it falls though a cold layer. Hail, however, forms in spring, summer or fall thunderstorms.

Explanation:

Hail, snow, sleet, and rain are all forms of precipitation that form under different atmospheric conditions. The main difference between the conditions required for hail, snow, sleet, and rain formation is the temperature and the type of clouds involved.

What are Hail, snow, sleet, and rain?

Rain forms when the air temperature is above freezing and water droplets in the atmosphere combine to form larger droplets that are heavy enough to fall to the ground. This typically occurs in large cumulonimbus clouds associated with thunderstorms, where the upward motion of air currents keeps the droplets aloft until they grow large enough to fall to the ground.

Snow forms when the air temperature is below freezing and the water vapor in the atmosphere directly forms ice crystals instead of liquid droplets. These ice crystals then grow larger as they move through the atmosphere, eventually falling to the ground as snowflakes.

Sleet forms when the air temperature is near freezing and rain droplets fall through a layer of freezing air near the ground. The rain droplets freeze into ice pellets before hitting the ground.

Hail forms when the air temperature is warm near the ground, but there is a layer of cold air higher up in the atmosphere. This creates strong updrafts in thunderstorm clouds that carry rain droplets upward into the colder air, where they freeze into ice pellets. These pellets can then fall back into the warm air and melt slightly before being carried back up into the colder air, where they refreeze and grow larger. This process can repeat multiple times, creating hailstones of different sizes before they fall to the ground.

Therefore, the differences in atmospheric temperature, the presence of freezing air layers, and the type of clouds present all play a role in determining whether precipitation falls as rain, snow, sleet, or hail.

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divided by the resistance is known as _____.
a. Einstein's equation
b. Faraday's law
c. Newton's law
d. Ohm's lawaces that are not moving past each other.

Answers

Answer:

Ohm's lawaces that are not moving past each other.

Explanation:

I think...

Let Me Know If It's In fact Correct

It is known as Ohm’s law aces that are not moving past each other

What is the weight of a 10kg object on earth if its weight is 30N?

Answers

Answer:

Explanation:

Mass is given as 10 kg. Therefore, Weight = 10 kg * 9.8 m/s^2. Weight = 98 kg.

Answer:

Explanation:

Mass is given as 10 kg. Therefore, Weight = 10 kg * 9.8 m/s^2. Weight = 98 kg.

What two gases in the atmosphere do animals and plants need to breathe and grow?

Answers

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Carbon Dioxide for plants and Oxygen for animals

please help need asapppp!

Answers

Answer: try invasive species can change the natural habitat of the lake

Explanation:

Maybe humans pouring toxic chemicals in the water, or taking away the things the animals needs

what are two ways erosion affects California land

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Answer:

Two ways erosion affects California land are rising sea levels and soil erosion. Rising Sea Levels can cause homes to go under water and soil erosion can cause the ground to not be harvestable.

Explanation:

Erosions can have a huge effect on many things consisting in California.

Answer:

Water pollution and increased runoff

Explanation:

Erosion can cause soil infected with fertilisers, pesticides, ets. can travel to water bodies, causing that water to be polluted.

Erosion can send particles to block pores in the ground, "patching up" the ground, letting water stay on the ground instead of seeping underground, eventually leading to runoff.

ANSWER QUICKLY PLEASE!
How do the masses of objects affect the gravitational force between them?

Answers

Answer:

the larger the mass, the greater the gravitational pull of an object

Explanation:

hope this helps I think that's what u meant lol

Larger massive the better the gravitational

Where do the Sun’s rays hit Earth’s surface nearly at right angles?

Answers

Answer: The Equator

Explanation: The Equator is the place on Earth that is the most exposed to the sun rays throughout the year, which is why the climate is constant and without changes in this part of the world. The Equator always gets the sun rays at right angle, or very near the right angle.

The equator is the answer you’re looking for

By which mechanism does older oceanic rock move at a ridge?

Answers

Answer:

The ridge subducts and moves the rock

Explanation:

You got the right answer

The answer is c I think

Is work done in this example: A student lifting a heavy backpack off of the floor.

Answers

you need to add more explaintion of what you are talking about

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