Answer: Parallel lines have the same slope. Because the functions f(x)=2x+3 f ( x ) = 2 x + 3 and j(x)=2x−6 j ( x ) = 2 x − 6 each have a slope of 2, they represent parallel lines.
Which of the following statements best describes the movement of particles in a liquid?
A.
they do not move
B.
they vibrate
C.
they slide around each other
D.
they fly around freely
Answer:
C
Explanation:
Hope this helps :)
Matter is anything that is made up of atoms. The matter word is mainly used in science. Therefore Option C are correct option.
What is matter?Matter is a substance that has some mass and can occupy some volume. . Matter can be solid, liquid or gas.
In case of solid, particles are fixed at its mean position, they do not move at all. In gas, particles move very fast. They do not remain at its mean position. They continuously keep on moving with high kinetic energy called Brownian motion. In liquid particles are moveable, they are neither very stiff nor they move very fast. There is surface tension between the particles and the layers of liquid. Therefore, the layers of liquid just slide around each other. And this property of liquid is the reason for its fluidity.
Thus option c is correct option
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Write a paragraph to describe the similarities and differences between the four main protists focused on: euglena, amoeba, paramecium, and volvox.
Euglena, amoeba, paramecium, and volvox are all protists, which are a diverse group of single-celled organisms. All four protists are unicellular and can be found in aquatic environments. One similarity between these protists is that they all have the ability to move, whether it be through cilia, flagella, or pseudopodia. However, there are also differences between these protists. Euglena has both chloroplasts and a flagellum, which allows it to carry out photosynthesis and move through water. Amoeba, on the other hand, moves through the use of pseudopodia and can change its shape. Paramecium is a ciliate and uses its cilia to move and capture food. Volvox is a colonial organism, made up of many individual cells that work together to move and reproduce. Overall, these four protists have different characteristics and abilities, but all are considered protists and share certain similarities.
If you add thermal energy, what happens to the particles?
Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
Explanation:
Answer:
the particles move faster
Explanation:
When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to fall.
100 POINTS AND BRAINLIEST NO CAP IF YOU WRITE THIS CORRECTLY AND DECENTLY. IF YOU HAVE A QUESTION PUT IT IN THE COMMENTS NOT AN ANSWER PLS
You have learned that power is the speed, or rate of doing work. In this report you will learn more about James Watt or horsepower.
Here is your goal for this assignment:
Complete an activity on power
Complete one of these activities:
1. Research the life of James Watt. Report in about fifty words some of the important events in Watt's life leading up to the watt being named in his honor.
2. Conduct a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer. Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
Answer:
(i did number 1) James Watt was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine. In 1762, he began studying steam engines. With his knowledge, in 1763, he repaired a "Newcomen" engine owned by the university. However, while repairing it, he was impressed by its waste of steam, and came upon a solution, the separate condenser. It was his first invention, and he created it in 1769. In 1765, he produced his first working model of the 'Watt' engine (with separate chambers for piston and steam). (i rly hope this helps no need to mark branliest if it doesnt)
Explanation:
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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Which is the definition of the equator?
A. The equator is half of a sphere, which is used to describe one half of the Earth.
B. The equator is the imaginary line that divides the Earth into two equal parts. It is also used as the basis for the word’s time zones.
The equator is the imaginary line that divides the Earth into two equal parts. It is also used as the basis for the word’s time zones.
C. The equator is an imaginary horizontal line drawn on the Earth equally between the North and South poles.
D. The equator is half of a circle used to describe the northern half of the Earth.
Answer:
D. The equator is half of a circle used to describe the northern half of the Earth.
Explanation:
hope it helps
Answer: C
Explanation: The equator divides the earth into North and South pole
What does the author explain in this passage?
Question 2 options:
The author explains the importance of bike safety, using helmets as an example.
The author explains the force of friction, using different kinds of music as examples.
The author explains the sport of soccer, using examples of current teams and players.
The author explains the idea of motion, using different sports as examples.
A spaceship fires a movement thruster, releasing gases at high pressure.
What are the forces in the force pair for this example?
a) the force the gasses apply to the ship
the force the ship applies to the gasses
b) the force the gasses apply to space
the force the ship applies to the gasses
c) the force the gasses apply to space
the force the ship applies to gasses
d) the force the gasses apply to the ship
the force the ship applies to space
Voyager 2 is a space probe, launched in 1977, to study the outer planets. It will continue to travel through space for thousands of years without stopping. Which one of Newton's laws does this describe?
(I'm new to this website so Im just getting the hang of it)
Voyager 2 is a space probe, launched in 1977, to study the outer planets, it will continue to travel through space for thousands of years without stopping, and it travels on Newton's first law of motion.
What is the significance of Newton's first law of motion?It is of great importance as it is used to predict the behavior of objects in motion like Voyager 2 and to understand performance in sports such as skiing and skating etc., and help in improvement. It is also helpful for the development of new technologies for the space program and in the understanding of mechanical systems such as vehicles, machinery, etc.
Hence, Voyager 2 is a space probe, launched in 1977, to study the outer planets, it will continue to travel through space for thousands of years without stopping, and it travels on Newton's first law of motion.
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Compare and contrast electric conductors and electric insulators. Give an example of each.
Answer:
conductor:-
A substance that allows heat to pass through them is known as a conductor.
Example:-All the metals, water, etc.
Insulator:-
A substance that does not allows heat to pass through them is known as an insulator.
Example:-All the nonmetals etc.
Explanation:
True or False
If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting.
Answer:
true
Explanation:
If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting. If two forces act in the same direction on an object, the forces add together and the object experiences a greater force in that direction
What type of circuit is this in the picture? (Lesson 4.07)
A: Parallel
B: Open
C: Ac
D: Series
Answer: hope this helps ♡
A: Parallel
Explanation:
It's a parallel circuit because it has two or more paths for the electricity to flow through (the paths are parallel).
Answer:
A
Explanation:
Erin is keeping a science journal. She wrote the following paragraph that explains how light travels through different mediums. But she’s made one mistake. Which sentence in Erin’s journal is incorrect?
A ray of light passes through the air and enters the water inside a metal container. The light ray bends as it crosses the boundary between air and water. Once it hits the bottom of the container, the ray gets reflected. The reflected ray passes back through the water and enters the air without bending. In this example, the ray of light is both reflected and refracted.
Answer: The first part I think
Explanation:
Im not too sure on this one
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
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
Match the Vocabulary terms with their definitions.
Answer:
1. convert=cause to change in form, character, or function
2. energy conversion=the process through which energy is changed into forms that are useful to humans
3. energy transformation=energy is changed from one form to another
4. energy can neither be created nor destroyed, it can only change forms. the amount of energy stays the same. energy in= energy out
REALLY NEED HELP, 3 QUESTIONS 20 POINTS. ONLY ANSWER IF YOU KNOW THE CORRECT ANSWER. DO NOT ANSWER WITH "I DON'T KNOW, SORRY" JUST FOR THE BRAINLY POINTS. Thanks very much, have a great day. ( I Will report you if you answer with "I don't know, sorry"
1) A spring with a natural height of 60 mm is compressed by a 300 g mass to a new height of 54 mm.
Find the spring constant in SI units.
Find the height of the spring if the 300 g mass were replaced by a 400 g mass
2) A spring is stretched by 2m with a force of 100 N. Calculate its spring constant.
3) You have just bought an innerspring mattress that contains coil springs in a rectangular array 20 coils wide and 40 coils long. You estimate that when you lie on the mattress, your weight is supported by about 200 springs (about one-fourth of the total number of springs in the mattress). You observe that the springs compress
about 2.0 cm when you lie on the mattress. Assuming that your weight of 600 N is supported equally by 200 springs, find the force constant of each spring.
Answer:
1. a. -490N/m
b. -653.333N/m
2. -50N/m
3. (i don't know this one but i hope the rest is helpful)
Describe 3 factors an engineer should take into consideration when choosing material for building the pipes in a pipeline
Gr. 8
Think it has something to do with Viscosity, Density, and Pressure but not sure what
Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)
Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.
2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.
3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.
The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)
how does a free fall drop ride work with newtons 3rd law?
Answer:
A falling object is in free fall when the only force acting on the force is gravity.
Explanation:
Because the only force acting on you is gravity, the scale no longer is pushing your cart up. Or in other words - your no longer pushing down onto the scale.
Determine the metric volume of the cube below.
Answer:2.744
Explanation:
V= S^3
if the length of one side of cube is 1.4 cm
V= 1.4^3
V=2.744cm^3 or 2744mm^3
(It looks 1.4 to me tho)
The magnitude of the metric volume of the cube is 2.744 cubic centimeter.
What is volume?Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.
Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water needed to fill a bottle, aquarium, or water tank.
According to the picture:
Length of each sides of the cube is: a = 1.4 cm.
We have to fine: volume of the metric cube: V =?
We know that: volume of a cube is given by:
V = a³
⇒ V = 1.4³ cm³ = 2.744 cm³
Hence, magnitude of the metric volume of the cube is 2.744 cubic centimeter.
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what is the answer i need answers now
Answer:
listening ,communication ,resolution
Explanation:
What are the positive and negative effects of the mountain-climbing trade on the local environment and economy? 3-5 sentences, please thx
Explain what happens as the heart grows bigger.
A driver is driving a 6371 kg lorry. After spotting a hazard, the driver applies the brakes. The lorry decelerates uniformly and comes to a stop 60 m after the brakes are applied. Estimate the braking force needed to stop the lorry.
Answer:
The estimated braking force needed to stop the lorry is zero, based on the given information and calculations. However, it's important to note that this result is likely not accurate, as some force is required to stop a moving object. It's possible that additional information or calculations are needed to obtain a more realistic estimate of the braking force.
Explanation:
To estimate the braking force needed to stop the lorry, we can use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a).
In this case, the lorry decelerates uniformly, so the acceleration is constant. The initial velocity is assumed to be zero since the lorry comes to a stop. The final velocity is also zero. Therefore, we can use the equation:
Final velocity squared (vf^2) = Initial velocity squared (vi^2) + 2 * acceleration (a) * distance (d)
Since vi = 0 and vf = 0, the equation simplifies to:
0 = 0 + 2 * a * d
Solving for acceleration (a), we have:
2 * a * d = 0
a = 0
Since the acceleration is zero, it means that the braking force needed to stop the lorry is also zero. This is likely not an accurate result as some force is required to stop the lorry. It's possible that additional information or calculations are needed to accurately estimate the braking force.
The braking force required to stop a 6371 kg lorry after spotting a hazard and applying the brakes is what the question is asking for. The lorry decelerates uniformly and comes to a stop 60 meters after the brakes are applied.
The following steps will guide you on how to calculate the braking force:
Step 1: Determine the mass of the lorry which is 6371 kg. This will be denoted as m.
Step 2: Determine the distance travelled by the lorry, which is 60 m.
Step 3: Determine the time taken by the lorry to stop. This can be done by using the formula for uniform deceleration, which is a = (v-u)/t where v is the final velocity, u is the initial velocity and a is the uniform deceleration. Since the lorry comes to a stop, its final velocity is zero and its initial velocity is unknown.
However, we can assume that the lorry was initially travelling at a constant speed before spotting the hazard. Therefore, we can assume that the initial velocity was equal to the average velocity of the lorry before the brakes were applied.
This can be calculated using the formula v = d/t where d is the distance travelled and t is the time taken. The average velocity can therefore be calculated as follows: v = d/t = 60 m/t
Step 4: Rearrange the formula for uniform deceleration, a = (v-u)/t, to find u which is the initial velocity. Since the lorry comes to a stop, we know that v = 0.
Therefore: u = v - at where a is the uniform deceleration and t is the time taken to stop which is also equal to the time taken for the lorry to travel the distance of 60 meters. Substituting for v, we get: u = - at
Step 5: Calculate the acceleration of the lorry using the formula a = (v-u)/t. Since the final velocity is zero, we get: a = -u/t = -(-at)/t = a The acceleration is negative since the lorry is decelerating.
Step 6: Calculate the braking force using the formula F = ma where F is the braking force and m is the mass of the lorry. Therefore: F = ma = (-ma) since a is negative = (-6371 kg) (a) Therefore, the braking force required to stop the lorry is -6371a N where a is the uniform deceleration calculated in Step 5.
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How are force and velocity related? Give evidence to support your answer.
help me pls i need the answer
i know nothing about basketball, pleas help. List one type of shot. Tell me about this shot.
Answer: A half court shot
Explanation: A half court shot is when you go the the half of a court a shoot a basketball into the hoop.
Explain the events that would cause these changes in velocity. For each claim, describe the thruster force and how that would result in the pod moving away from the station.
Claim 1: The thrusters caused the pod to move in the opposite direction.
Claim 2: The thrusters only slowed the pod, it didn’t stop; the pod hit the space station, which made it bounce and move in the opposite direction.
Claim 1 question: Firing the thrusters would have caused the pod to move in the opposite direction if . . .
Claim 2 Question: Firing the thrusters only slowed the pod, it didn’t stop; the pod hit the space station, which made it bounce and move in the opposite direction. This would happen if . . .
Answer: Claim 1
Explanation:
Which of the following is true of elements?
A.
They are always composed of only two types of matter.
B.
They are composed of only one type of matter.
C.
They are not composed of any type of matter.
D.
They are composed of two or more types of matter
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?
Answer: Room temperature
Explanation: it makes sense (sorry if its wrong)
How are mountains and plateaus alike?
Both are raised areas.
Both have level surfaces.
Both have low reliefs.
Both are peaked surfaces.