Answer:
If your talking about the civil war, many railroads, farms, and buildings were destroyed. Their financial system was ruined, and confederate money was useless.
Explanation:
What does it mean that a material transmits waves?
Waves will stop and transfer energy when they hit the material.
Waves will pass through the material.
Waves will bend and change their direction slightly when they hit the material.
Waves will bounce off the surface of the material.
It means that a material transmits waves when the waves bend and change their direction slightly when they hit the material, which is the third option as there are different types of waves, such as X-rays and gamma rays, and they have different properties.
What is the significance of the waves?Waves are significant because electromagnetic waves are used in many areas of physics and technology, and waves like microwaves, infrared, and visible light are used in many technologies such as radio, communications, spectroscopy, etc., the waves are also useful in the field of quantum computing and in the medical field, etc.
Hence, it means that a material transmits waves when the waves bend and change their direction slightly when they hit the material, which is the third option as there are different types of waves, such as X-rays and gamma rays, and they have different properties.
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BRAINLIEST TO FIRSDT CORREDCT
If the forces on an object are balanced, what can be said about the forces?
1 The forces have a net force greater than zero.
2 The forces are both equal only.
3 The forces are equal and opposite.
4 The forces are both opposite only.
Answer:
2 they are equal
Explanation:
1. Space probes have not landed on Pluto yet. Describe three types of information you would collect if you were designing the probe.
2. Pick a planet (other than Earth) and describe 5 characteristics that you know about it. Be as specific as possible.
3. What are the various features of the moon and how did they form?
All answers must come with an explanation.
Answer:
Space probes are made to conduct science experiments. They do not have people on them. Space probes have helped scientists get information about our solar system. Most probes are not designed to return to Earth. Some have landed on other planets! Others have flown past the planets and taken pictures of them for scientists to see. There are even some space probes that go into orbit around other planets and study them for a long time. The information they gather is used to help us understand the weather and other changes which happen on planets other than the Earth. This information is important in helping to plan other space missions such as ones to Mars and to Saturn.
Explanation:
A gas at constant temperature is confined to a cylinder with a movable piston. The piston is slowly pushed into the cylinder, decreasing the volume of a gas. The pressure increases. What are the variables in this experiment? (What is changing?)
a. temperature and time
b. time and volume
c. volume and pressure
d. pressure and temperature
The variables in this experiment are pressure and volume. So, option c is correct.
What is Boyle's law ?Boyle's law states that, the pressure of an ideal gas of a given mass is inversely proportional to its volume at constant temperature.
Here,
The gas is confined to a cylinder with a movable piston, at constant temperature. So, the temperature does not changes. The piston of the cylinder is pushed into it such that the volume of the gas decreases.
According to Boyle's law, the pressure of the gas is inversely proportional to the volume of the gas.
So, as the volume of the gas decreases, the pressure will increase.
This is because, since the the volume of the gas in the cylinder is decreasing, the gas molecules will come closer such that the space for their movement is decreased. As a result, the gas molecules collide with each other and thus resulting in an increased pressure, keeping the temperature constant.
Hence,
The variables in this experiment are pressure and volume.
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If the Force exerted by the intern is doubled and the distance is halved, does the done by the intern increase, decrease, or remain the same?
Answer:
If the force exerted by the intern is doubled and the distance is halved, the work done by the intern remains the same. Work done is the force applied to move a body through a distance.
Explanation:
If the Force exerted by the intern is doubled and the distance is halved, the work done by the intern remains the same.
What is work?A force must be applied in order for work to be completed, and there must also be motion or displacement in the force's direction.
The amount of force multiplied by the distance moved in the force's direction is known as the work done by a force acting on an item. Work has no direction and only magnitude. Work is a scalar quantity as a result.
Let, initially Force exerted by the intern is F and distance is d at any angle θ. Then initial work done = Fd cosθ.
Latter, Force exerted by the intern is doubled and the distance is halved at the same angle θ. Then final work done = F/2 · 2d ·cosθ = Fd cosθ.
Hence, Work done remains same.
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Compare and contrast heat and temperature. Cite examples from the readings to support your comparison. Also cite examples from what you may already know to support your comparison.
Answer:
The term "heat" refers to a type of electricity. Joules are the units of measurement. The kinetic energy of an object's particles, as well as the number of particles, affect its temperature. The average kinetic energy of the particles in a material is defined as temperature.
Explanation:
unlike an observational study, an experiment can prove:
A. Cause and effect.
B. The nature of the mind.
C. Correlation.
D. The lack of bias.
In Mendel’s day, many people thought that offspring inherited a blend of their parents’ traits. For example, they thought that an animal with white fur and an animal with black fur would produce offspring with grey fur. This is called the blending theory of inheritance. How did Mendel show that the blending theory was incorrect?
Answer:
Explanation:In Mendel's time, many people thought that offspring inherited a combination of traits from their parents. For example, they thought that an animal with white fur and an animal with black fur would produce pups with gray fur. This is called the theory of combined inheritance. How did Mendel show that the combination theory was wrong?
Take schlatts love uwu (i cant spell)
thank you so much for the schlatt
explain how climbing a mountain is similar to hiking from the equator to one of the poles
Climbing a mountain is similar to hiking from the equator to one of the poles is same as in both cases acceleration due to gravity and weight of the object falls as the object goes far.
What is weight?The amount of a body's weight indicates how much gravity is pulling on it. Weight is calculated using the method w = mg. Since weight is a force, it has the same SI unit as a force, which is the Newton (N).
When an object climbs a mountain, altitude of the object increases - that's way - acceleration due to gravity and weight of the object decreases. Similarly, when an object hikes from the equator to one of the poles, acceleration due to gravity and weight of the object decreases. In this way, climbing a mountain is similar to hiking from the equator to one of the poles.
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List the different levels of classification from broadest to most specific.
Answer:
The levels of classification used are: kingdom, phylum, class, order, family, genus, and species.
Explanation:
During a camping trip, Ming gathers firewood and arranges it in the fire
pit. She sets it on fire, and the result is a roaring blaze. Which statement
best shows all the energy transformations that took place?
Answer: motion, heat and air
Explanation:
3) i don't know if i am right so if I am incorrect plz help me out PLZ HELP ME OUT ASAP
Answer:
Yes you are correct
May i have brainliest
Pls help me I want to get this done
A rocket burns fuel at a rate of 249 kg/s and exhausts the gas at a relative speed of 2 km/s. Find the thrust of the rocket. Answer in units of MN.
Why are ORGANS classified?
Answer:
An organ is a group of tissues with similar functions. ...
A given organ's tissues can be broadly categorized as parenchyma, the tissue peculiar to (or at least archetypal of) the organ and that does the organ's specialized job, and stroma, the tissues with supportive, structural, connective, or ancillary functions.
Explanation:
What type of device is a coal-fired power plant?
A. A heat pump that uses heat to do work
B. A heat pump that uses work to move heat
C. A heat engine that uses work to move heat
D. A heat engine that uses heat to do work
A coal-fired power plant is a type of heat engine that uses heat to do work. So, the correct option is D.
What is meant by a power plant ?A power plant or power station is defined as a facility designed for producing electrical energy from various other forms of energy.
Here,
A coal-fired power plant is a type of power plant, which is used for the production of electricity by using fuels such as coal, oil, etc.
The coal-fired power plants are the most common type of power station. In these power plants, the main burning materials used are the fossil fuels. The coal is pulverized and then burned into a coal-fired boiler. Then, the boiler water is converted into steam using a heat engine. As a result, this steam is used for the spinning of turbines.
Hence,
A coal-fired power plant is a type of heat engine that uses heat to do work.
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Directions: Imagine that you are either a Confederate or Union soldier alive during the Civil War. Write a short note to your family describing one of the important events from the Civil War. (Keep in mind the side that you are on.) On the front, draw an illustration of the event and include a short greeting.
HELPPP MEHH PLZZZZ
Answer:
Hey guys...I Miss you very much.I wish i could come home.But i have a mission to complete and i have to complete it. Tell the kids i said hi and i live them very much
Explanation:
GREETING: Hey family i miss you all very much i hope you guys are ready for me to come home.
Which type of wave does the illustration depict?
a longitudinal wave
b surface wave
c transverse wave
URGENT!!
What occurs when the trough of one light wave meets the crest of another lightwave?
destructive interference
constructive interference
wave building
wave destruction
Answer: destructive interference
Explanation:
What is true about electromagnetic waves? Select all that apply. *
Captionless Image
Electromagnetic waves are faster than mechanical waves.
Electromagnetic waves can travel in vacuum.
Humans can see mechanical waves but not electromagnetic waves.
Electromagnetic waves have higher frequencies than mechanical waves.
Electromagnetic waves are made up of massless particles.
Answer:
electromagnetic waves are faster than mechanical waves
A rower in a boat pushes the water using an oar.
What are the forces in the force pair for this example?
A. the force the oar applies to the rower
the force the water applies to the boat
B. the force the oar applies to the water
the force the water applies to the boat
C. the force the oar applies to the water
the force the water applies to the oar
D. the force the oar applies to the rower
the force the water applies to the oar
Answer: If im not wrong the answer should be C
Explanation:
a 0.15 kg baseball has a momentum of 0.78 kg*m/s just before it lands on the ground. What was the ball's speed just before landing?
The speed of the ball (i.e the velocity since it has a direction in a specified time) is 5.2 m/s before it landed.
From the given information,
the mass of the baseball = 0.15 kgthe momentum of the baseball = 0.78 kg m/sFor an object moving in a direction in a specified time, the momentum of the object is usually directly proportional to the mass and velocity.
∴
Momentum = mass × velocity
velocity = momentum/mass
velocity = 0.78 kgm/s ÷ 0.15 kg
velocity = 5.2 m/s
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Anatomy & physiology
Helllp please!!!!
The statement that is false when describing serous and mucous membranes is that serous membrane always, while mucous membranes always produce mucose fluid.
What is the difference between serous and mucous membranes?Serous membranes usually line closed cavities within the body, for example, the pericardial cavity. These membranes secrete a serous or watery fluid.
On the other hand, mucous membranes are thicker, and the line surfaces of the body are exposed to the external environment, for example, the respiratory tract. These membranes secret mucus but sometimes they can secret liquids, an example is the conjunctiva.
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what is this ???????????
Answer:
A.
Explanation:
can tectonic plates switch places with other tectonic plates, Im generally curious
also I didnt know what category to put this in so ...
Answer:
Earth's crust, called the lithosphere, consists of 15 to 20 moving tectonic plates. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
beainliest?
ik this is a lot but I am super confused, could you pls helpppp
Explanation:
So basically yh first off the number for protons and electrons are the same and to find them is to look at the atomic number because the atomic number is the same as protons and electrons.
To find the neutrons you need to take the actual atomic number from the atomic mass unit.
Hope that helps yh don't stress it.
How is the Moon different during a new moon phase than during a lunar eclipse?
Answer:
A solar eclipse happens at the new moon phase, when the moon passes between the sun and Earth. A lunar eclipse happens at the opposite moon phase – at full moon – when the Earth, sun and moon align in space, with Earth between the sun and moon. EarthSky's lunar calendar shows the moon phase for every day in 2021.
Explanation:
During a new moon, it is more or less between the Earth and the Sun, whereas a lunar eclipse ALWAYS occurs during a full moon.
The new moon is the astronomical phase that indicates the beginning of a new lunar cycle.During a new moon, the moon is found between the Earth and Sun (not exactly between), thereby the moon's surface is dark because the light side is facing away from Earth.Conversely, a lunar eclipse occurs when the moon passes through the shadow of the Earth, which only happens during a full moon.In conclusion, during a new moon, it is more or less between the Earth and the Sun, whereas a lunar eclipse ALWAYS occurs during a full moon.
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Briefly explain Sir Isaac Newton’s prism experiment this text is your resource:
"In 1665, Isaac Newton was a young scientist studying at Cambridge University in England. He was very interested in learning all about light and colors. One bright sunny day, Newton darkened his room and made a hole in his window shutter, allowing just one beam of sunlight to enter the room. He then took a glass prism and placed it in the sunbeam. The result was a spectacular multicolored band of light just like a rainbow. The multicolored band of light is called a color spectrum."
Answer:
His investigations into optics commenced in 1666 at the end of an annus mirabilis when, at home in Wools Thorpe, Lincolnshire due to the bubonic plague which was raging in Cambridge, he investigated gravity, calculus and the laws of motion. He determined to ‘try therewith the celebrated Phenomena of Color’. It had been thought previously that colour was created by the mixing of light and darkness. Newton noted, however, that the blended print on the white page of a book appears grey, not coloured, when viewed from a distance. His experiments in bending light through prisms led, eventually, to the revolutionary discovery of the existence in white light of a mixture of distinct coloured rays, distinguishable when refracted in a prism. In his first experiment he projected the light via a round hole in his shutters.
Explanation:
geologists use the blank test to determine the hardness of a mineral
Answer:
Mohs Harness Scale
Explanation:
