For example, a very dense metal will sink to the bottom while something like wood will float on the surface. The wood is less dense compared to the water, which is why it floats. Density is the measure of how much stuff you can pack in a certain volume. The higher the density, the more stuff per volume. Think of it like packing a suitcase. If there's barely anything in there, then we can say its density is low. The more stuff crammed in the suitcase will increase the density (and therefore the weight), while keeping the volume the same.
Answer:
true
Explanation:
i think
If the distance to a distant galaxy is recorded as 10,000 light years, then light must have been traveling for 5000 years to reach the Earth.
True or false
Pls Help! first reply will get brainliest
What is the number of daylight hours of daylight difference in the summer for two regions located at different latitudes in the northern hemisphere?
can someone help me please
Use the data in the table to explain how you could determine the volume of the block.
To find the volume of the block, subtract the initial water volume from the final water volume, convert the change in water volume to cubic centimeters, and consider it as the volume of the block.
To find the volume of the block using the measurements provided.
1. Calculate the change in water volume:
The initial water volume is given as 62.3 mL, and the final water volume is given as 89.5 mL. To determine the change in water volume, we subtract the initial volume from the final volume: 89.5 mL - 62.3 mL = 27.2 mL. This value represents the increase in water volume caused by placing the block in the graduated cylinder.
2. Convert the change in water volume to cubic centimeters:
Since 1 mL is equivalent to 1 cubic centimeter (cc), we can directly convert the change in water volume from milliliters to cubic centimeters. In this case, the change in water volume is 27.2 mL, which is also equal to 27.2 cc.
3. Determine the volume of the block:
When the block is placed in the graduated cylinder, it displaces some amount of water, resulting in an increase in water volume. By measuring this increase in volume, we can determine the volume of the block itself. In this case, the change in water volume of 27.2 cc represents the volume of the block.
By following these steps, we can find the volume of the block based on the provided measurements.
Therefore, By deducting the initial water volume from the final water volume and converting the difference in water volume to cubic centimeters, the block's volume can be calculated. the volume of the block is 27.2 cc.
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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?
Create 2 models, please.
Answer:
Hope this helps!
Explanation:
Any atom which no longer has a neutral charge is called a blank
Answer:
atoms that no longer have a neutral charge are called ions!
Explanation:
when atoms gain or lose electrons, they become either negatively charged or positively charged in the process. losing electrons means the atom becomes more positive, therefore positively charged. gaining electrons means the atom becomes more negative, so negatively charged. atoms that go through this process of gaining or losing electrons are called ions.
hen catching a football, your fingers should shape a
a W
b M
c Triangle
d Open circle
PLEASE ANSWER ASAP
Answer:
c.triangle
Explanation:
this is because I played football in be and the teacher told up it should be a triangle
Please select the word from the list that best fits the definition
Gives a pictorial indication of how far and fast an object has moved
a. speed
b. velocity
c. frame of reference
Answer: the answer is C
Explanation:
hope it helps friend :)
Earth's atmosphere is composed of
A.
iron, oxygen, and silicon.
B.
nitrogen, oxygen, and trace amounts of other gases.
C.
water, liquid oxygen, and trace amounts of other liquids.
D.
carbon dioxide, ozone, and magnesium.
Answer: B
Explanation:
:)
What two gases in the atmosphere do animals and plants need to breathe and grow?
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.
do footballers get paid even though they do not win a match?
Answer:
However, in general, football players are paid whether they are paid or not. However, it is clear that if they are not on the field, they will not get a win, a goal or more.
Answer:
no
Explanation:
they shouldn't get paid unless they win
1 sentence telling me the topic of the story. In your own words.
3 sentences you copy straight from the magazine with "quotation" marks around it. This sentence proves that the topic is what you stated in the first sentence.
1 sentence telling me the conclusion. In your own words.
3 sentences you copy straight from the magazine with "quotation" marks around it. This sentence proves that the conclusion is what you stated in the sentence above this one
The average woodpecker smashes its beak against a hard surface more than 10,000 times a day. Any human who jolted their head like this would likely end up with a concussion. This traumatic brain injury is caused by a blow to the skull. So why doesn’t the constant hammering turn woodpeckers’ brains into mush? For years, it was assumed that woodpeckers had some kind of cushioning in their heads to protect their brains during pecking. Many scientists suggested that spongy bone in the birds’ skulls absorbed and lessened the shock of each impact (see Myth Buster: Hard Headed). This idea was repeated in scientific articles, textbooks, and informative plaques at zoos. Even though the concept “is often presented like a clear-cut fact, there haven’t been any real tests to prove it,” says Sam Van Wassenbergh. He’s a biologist who studies biomechanics, or how living things move, at the University of Antwerp in Belgium.SHOCK ABSORBER: Van Wassenbergh uses a spring-loaded hammer to show why a shock-absorbing skull would make a woodpecker less efficient at pecking. When you think about it, says Van Wassenbergh, the shock-absorbing skull idea doesn’t make much sense. Woodpecker drills into the wood in search of insects to eat. When the bird’s head accelerates forward, the movement generates kinetic energy. This energy of motion is transferred to the tree when the bird slams its beak against the trunk. If a woodpecker’s skull had to cushion, it would absorb some of this energy and decrease the force of the peck. Why would a bird that survives by pecking evolve to do it less effectively? Van Wassenbergh and his team decided to see what was really going on. First, the researchers recorded videos of woodpeckers’ heads in motion. To capture this rapid movement, the scientists needed special high-speed cameras. Each peck lasts only a fraction of a second! Van Wassenbergh’s team recorded videos of six woodpeckers from three species and analyzed the footage. The researchers used a computer to track three points on each bird’s head: one on the skull and two on the beak. The scientists hypothesized that if the birds’ skulls had shock absorbers, the footage would show a “squishing” of the space between the skull and beak—like when a spring compresses. But that didn’t happen. Instead, the birds’ heads moved as one stiff unit, like a hammer. Next, the team wanted to demonstrate why this adaptation would be helpful to the birds. Using computer models, the scientists simulated woodpecker skulls with and without shock absorbers. Then the researchers compared the force of the pecks. “The pecking performance was greatly reduced in the skull with a shock absorber,” says Maja Mielke, a biologist who worked on the study. With shock absorbers, says Mielke, “the poor birds would need to pound even harder to reach the same results.” For a woodpecker, having a shock-absorbing skull would simply be a waste of energy. Science World originally published this diagram in our May 10, 2021, issue. It was based on scientists’ beliefs about woodpecker anatomy at the time. Here it is again—updated based on new research. MYTH: The skull is made of spongy bone that cushions and protects the brain from impactBUSTED! The skull is hard enough to protect the bird from injury, but it doesn’t cushion The eyes have a special membrane that protects them from flying splinters and wood dust.MYTH: Neck muscles are strong and stiff enough to absorb the shock of each peck BUSTED! Stiff neck muscles do not absorb shock—in fact, they help increase the force of each peck.MYTH: The tongue wraps completely around the outside of the skull, providing an additional level of cushioning, and can extend to probe for food inside holes made by the birdBUSTED! The tongue does not provide any observable cushioning. The beak is connected to the skull with thick bone that prevents jolts and vibrations. NEW RESEARCH SHOWS: The woodpecker’s brain is small, which helps prevent concussions that might occur in a larger animal. If woodpeckers’ skulls don’t absorb shock, then why doesn’t constant pecking damage the birds’ brains? To answer this question, the researchers calculated how harmful the blows from pecking actually are. It turns out the hits aren’t that dangerous because the birds’ brains are so small. “Small masses can tolerate stronger impact forces without being damaged,” says Mielke.
Answer:
The topic of the story is about how woodpeckers can peck without causing damage to their brains.
"The average woodpecker smashes its beak against a hard surface more than 10,000 times a day."
"This traumatic brain injury is caused by a blow to the skull."
"So why doesn’t the constant hammering turn woodpeckers’ brains into mush?"
The conclusion of the story is that woodpeckers don't get brain damage from pecking because their brains are small, which allows them to handle the force of the pecks.
"Small masses can tolerate stronger impact forces without being damaged,"
"The hits aren’t that dangerous because the birds’ brains are so small."
"To answer this question, the researchers calculated how harmful the blows from pecking actually are."
Explanation:
Aviation:
Calculate the x-component of the Drone Vector:
Calculate the y-component of the Drone Vector:
Calculate the x-component of the Wind Vector:
Calculate the y-component of the Wind Vector:
What is the Total x-component of the combined Drone + Wind vectors?:
What is the Total y-component of the combined Drone + Wind vectors?:
What is the Total Magnitude of the combined Drone + Wind vectors?:
What is the Total Angle of the combined Drone + Wind vectors?:
The x and y component of the drone vector are 21.21 mph and 21.21 mph respectively.
The x and y component of the wind vector are -7.5 mph and -12.99 mph respectively.
The total x-component of the combined Drone + Wind vectors is 13.71 mph.
The total y-component of the combined Drone + Wind vectors is 8.22 mph.
The magnitude of the total vector is 15.99 mph.
The total angle of the combined Drone + Wind vectors is 31⁰.
What is the x and y component of the drone vector?The x and y component of the drone vector is calculated as follows;
Vx = 30 mph x cos (45)
Vx = 21.21 mph
Vy = 30 mph x sin (45)
Vy = 21.21 mph
The x and y component of the wind vector is calculated as follows;
θ = 240⁰ - 180⁰ = 60⁰
Vx = -15 mph x cos (60)
Vx = -7.5 mph
Vy = -15 mph x sin (60)
Vy = -12.99 mph
The total x-component of the combined Drone + Wind vectors is calculated as;
Vx_tot = 21.21 mph -7.5 mph = 13.71 mph
The total y-component of the combined Drone + Wind vectors is calculated as;
Vy_tot = 21.21 mph - 12.99 mph = 8.22 mph
The magnitude of the total vector is calculated as;
V = √ (13.71² + 8.22²)
V = 15.99 mph
The direction of the combined vector is calculated as;
θ = tan⁻¹ (Vy_tot/Vx_tot)
θ = tan⁻¹ (8.22/13.71)
θ = 30.95⁰
θ ≈ 31⁰
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There were many different microorganisms on the pillows. Dr. Tierno stated that these germs were probably causing the kids to have allergy symptoms.
The results of an experiment often prompt new questions that further scientific investigation can answer. From the results of this experiment, name one new question that a new experiment can answer.
Answer:
What kinds of microorganisms were found on the pillow and what kinds of allergy symptoms were caused by these microorganisms?
Which factor can increase both potential energy and kinetic energy of an object?
Increase in speed
Increase in mass
Decrease in temperature
Decrease in height from the ground
Please help me give a summary for trees lessons as I (cody) have a quiz Tommorow
Sientific method
Conduction,convection, and radiation
Energy transformations
Law of conversion of energy
Answer:
Conduction is heat transfer through stationary matter by physical contact. (The matter is stationary on a macroscopic scale—we know that thermal motion of the atoms and molecules occurs at any temperature above absolute zero.) Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction.
Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example.
Heat transfer by radiation occurs when microwaves, infrared radiation, visible light, or another form of electromagnetic radiation is emitted or absorbed. An obvious example is the warming of Earth by the Sun. A less obvious example is thermal radiation from the human body. I hope this helps you
Explanation:
Pls answer I'm giving brainliest to the person with the best answer
Answer:
you would measure the mass and volume of the two balls.
Answer:
THE FOOTBALL IS BIGGER IN LENGTH BUT SHORTER IN SIZE
Explanation:
why you delete my answer bro :l
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 feature of the ocean floor is observed more than any other feature?
Which ocean floor feature is responsible for creating the largest mountain ranges in the world?
Which two ocean floor features are found most closely to the ocean shore?
Which ocean floor feature is responsible for creating new land? Which is responsible for destroying land?
Answer:
In fact, the tallest mountains and deepest canyons are found on the ocean floor; far taller and deeper than any landforms found on the continents.
Rising up from the abyssal plain, you would encounter the mid-ocean ridge, an underwater mountain range, over 40,000 miles long, rising to an average depth of 8,000 feet. Tracing their way around the global ocean, this system of underwater volcanoes forms the longest mountain range on Earth.
Underwater landforms · Continental shelf Abyssal plains Mid-ocean ridge Ocean trenches Plate tectonics and the ocean floor Hydrography.
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.
At the deep-sea trenches, two plates converge, with one plate sliding down under the other into the mantle where it is melted. Thus, for each segment of new ocean floor created at the ridges, an equal amount of old oceanic crust is destroyed at the trenches, or so-called subduction zones.
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what things would you need to survive in the troposphere?
Answer: i think it means how we need plants, water, food, and gases from that to survive?
Explanation:
In a closed system, _____ energy is equal to potential energy plus kinetic energy. A. mechanical B. electrical C. thermal D. chemical
Answer:
Well, Your answer is Mechanical. Because, The Mechanical energy is the sum of the kinetic energy and the potential energy. In the closed systems, The mechanical energy is equel to potential energy plus kinetic energy.
Good Luck!!~
By Itsbrazts
Answer: Mechanical Energy
Explanation: The Mechanical energy of an object is equal to Potential energy plus Kinetic energy.
Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply. Does pressure have an effect on the solubility of a substance? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off of dishes? Which laboratory experiment is the most fun to perform?
A car weighing 5,500kg travels at a speed of 55km/h up a hill. What is its mechanical energy? Hint: In order to answer this question, you need to find the PE and KE first.
Help due 2:45 est (SCIENCE)
Does the moon have gravity? How do you know? Support your answer using evidence.
Answer:
Gravity is experienced on the moon but since the moon is much smaller and has less mass than the Earth, the gravitational pull on the surface is lower compared to that on the surface of Earth.
Explanation:
3) All the following are examples of the application of static electricity in the real world EXCEPT:
A: Printers
B: Copying machines
C: Candles
D: Paint sprayers
4) Which of the following are very sensitive to static electricity?
A: Air filters
B: Magnets
C: Electronic chips
D: Dust removal machines
5) Which of the following weather conditions is conducive for static electricity?
A: Dry, non-humid day
B: Rainy, warm day
C: High humid day
D: Cool, non-humid day
Charlotte Hornets NBA BASKETBALL TEAM
Answer:
I've heard both good and bad things about them! I'm going to go educate myself now
Explanation:
:)
Answer:
How good are they?
Explanation:
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.
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!
Which statement is true about the theory of plate tectonics and the theory of continental drift?
The theory of plate tectonics gives the method by which continents can move as part of plates.
The theory of plate tectonics does not explain how continental movements could occur.
The theory of plate tectonics proves the theory of continental drift completely wrong.
The theory of plate tectonics tells exactly where the continents were before Pangaea divided.
Answer:
The theory of plate tectonics explains how continental movements could occur. B. The theory of plate tectonics shows that continental movements could not have happened. C. The theory of plate tectonics tells us exactly where the continents were before Pangaea divided. D. The theory of plate tectonics shows that Pangaea was impossible, but .
Explanation:
Answer: the answer is the 2nd option, I’ll supply some proof.
Explanation:
Isabela is an astronomer studying stars A and B. Star A is farther away from Isabela and yet when Isabela observes the stars, the stars appear to have the same brightness. Which would be the best explanation for this? The stars have the same luminosity. Star A is more luminous than star B. Star B is more luminous than star A.
Answer: star A is more luminous
Explanation:
Answer:
B. Star A is more luminous than star B.
Explanation:
on edg