Force = 7kN
Pressure = 1mPa
Area = ?
Answers
Answer:
7 m^2
Explanation:
P=F/A
1=7/A
1A=7
A=7
Area is 7 meters squared
Related Questions
A scientist uses a camera to study the stars.
How would the scientist most likely use this technology?
1 to replace all of the old data about stars
2 to predict the star count over a broad area
3 to write observations about what the sky looks like
4 to count the number of visible stars in the sky
Answers
Answer:
It would most likely be 3!
Explanation:
A scientist taking photos of the stars would be using those photos as a sort of documentation. The only reason to record this is for data or research purposes, meaning that 1 and 2 are incorrect. While 4 is a possibility, it is a fruitless endeavor, as even if you managed to count all the stars in the night sky at one point, it would completely discount every star not visible from that part of the globe, making the data false/pointless. Again, this is just my educated assumption, but I do think the answer is 3. Good luck :D
Mahiya and Mrinmoy are in a relay around a square field with each side of length 60m. First, Mahiya runs at a speed of 6 ms−1 for 60m to pass a baton to Mrinmoy. Then Mrinmoy runs 120m at 4ms−1 while Mahiya runs through the field to reach the other corner. Then Mrinmoy passes the baton. But Mahiya is now tired since she has been constantly running. So, she only runs at 3ms−1 for the final 60m. What is the average speed of the baton in ms−1?
Answers
The average speed of the baton can be determined by dividing the total distance travelled by the total time taken for that travelling.
\(Average\ Time = \frac{Total\ Distance}{Total\ Time}\)
First, we will find the total distance, by adding the distances travelled by both Mahiya and Mrinmoy, while carrying the baton.
\(Total\ Distance = Distance\ Travelled\ by\ Mahiya\ to\ pass\ the\ baton\ to\ Mrinmoy\ +\ Distance\ Travelled\ by\ Mrinmoy\ to\ pass\ the\ baton\ to\ Mahiya\ +\ Final\ Distance\ Travelled\ by\\ Mahiya\)Total Distance = 60 m + 120 m + 60 m = 240 m
Now, we will find the total time taken for this travelling. To find out the total time we will divide each distance travelled by the speed of the traveller during that distance:
\(Total\ Time = \frac{60\ m}{6\ m/s}+\frac{120\ m}{4\ m/s}+\frac{60\ m}{3\ m/s}\\\\Total\ Time = 10\ s\ +\ 30\ s\ +\ 20\ s\)
Total Time = 60 s
Now, we finally find the average speed of the baton by using the formula:
\(Average\ Time = \frac{Total\ Distance}{Total\ Time}\\\\Average\ Time = \frac{240\ m}{60\ s}\)
Average Speed = 4 ms⁻¹
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rube goldberg machine ideas closing a fridge door
Answers
Here are a few ideas for a Rube Goldberg machine that closes a fridge door:
A marble rolls down a ramp and hits a small lever.
The lever activates a toy car that rolls down a track and hits a domino.
The domino falls and triggers a chain reaction that results in a weight falling onto a lever.
The lever pulls a string that is attached to a door handle.
The door handle turns and the fridge door closes.
Answer:
A marble rolls down a ramp and hits a small lever.
Which of these statements best represents the law of conservation of energy?
A: Potential energy can be completely converted to kinetic energy.
B: The total energy in a system decreases over time.
C: Energy is being created in the universe every day
D: The energy created by machines can be lost.
Answers
Is this right?
Meryl is making a collage of pictures for her science class. On one-half of a piece of poster board, she is attaching pictures of the result of adding heat to materials. On the other side of the poster, she is attaching pictures of the result for removing heat from materials. Which of the following pictures should be placed on the side of heat being removed from the material?
a frozen popsicle
baked cupcakes
steam from a pot
melted candy bar
Answers
Answer: It's kind of a subjective question by saying Which of the following pictures should be placed on the side of heat being removed from the material?
Explanation: I'm not entirely sure about this but I would think that it would be baked cupcakes because they had to undergo heat to become "baked", so they are the result of heat.
Lab Report
Motion and Forces
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U4_ Lab_MotionAndForces_Alice_Jones.doc).
Introduction
What was the purpose purpose of the experiment?
The purpose of the experiment is to test the hypothesis.
What were the independent, dependent, and control variables in your investigation? Describe the variables for each part of the experiment.
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Questionnaires and observations.
Write your procedure. List each step so that another student could follow the procedure and repeat your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about how the sum of forces acting on an object affect its motion? Write an evidence-based claim.
Type your answer here:
Which mass, A, B, or C, was the greatest? Use the observations from your experiment and your knowledge of Newton’s laws of motion to write an evidence-based claim.
Type your answer here:
Make a model that shows the forces acting on two blocks on a flat, frictionless surface:
A 1 N block at rest
A 1 N block with 2 N of force applied in one horizontal direction
Include arrows to represent the forces and labels to indicate the magnitude of each force. Use your model to compare and explain the motion of each block.
Type your answer here:
Answers
Answer's C
Explanation: The matter that surrounding this whole planet or time and frequencies the motion and forces that people can't determine unless made a hypothesis
Study the following loads that are acting
on a tree. Classify them as “live” or “dead.”
• wind blowing against a tree
• the weight of the tree
• the weight of a bird in the tree
Answers
The answer to the second bullet point is Dead
The answer to the third bullet point is Dead
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
Answers
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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Using proper units is important when recording data. In this lab, you determined three properties of the objects: mass, volume, and density. What are the units for each property?
The units used for mass were
The units used for volume were
The units used for density were
Answers
Answer:
The units used for mass were
✔ grams
The units used for volume were
✔ cubic centimeters
The units used for density were
✔ grams/cubic centimeter
Explanation:
check marks show i got it right
Answer:
The units used for mass were
✔ grams
.
The units used for volume were
✔ cubic centimeters
.
The units used for density were
✔ grams/cubic centimeter
.
Explanation:
Which term is described as the height of a wave from its rest position to its crest?
Question 3 options:
A) amplitude
B) wave height
C) crest height
D) wavelength
Answers
Answer:
A)
Explanation:
amplitude is the amount of amps or decibals a sound wave is and is measured by going high and low depending on the sound.
Because it measures the height of decibels going high and low, hope this makes sense :)
HELP WITH THIS Q PLEASE?
Answers
Answer:
specific heat capacity = heat transferred /change in temperature
=2.11 •10^4/6.8-98
=0.02 • 10^4
What can the arrow in a chemical reaction be translated to mean? Check all that apply.
yields
accompanied by
react to form
added to
except
Answers
Answer: yield and react to form
Explanation:
What is an ecosystem? Group of answer choices An ecosystem is all different populations of animals in an area. An ecosystem is a community of plants and animals and their physical surroundings. An ecosystem is a single example of a particular species of plant or animal. An ecosystem is all the organisms of a particular kind of species and their surroundings.
Answers
Answer: An ecosystem is a community of plants and animals and their physical surroundings
Explanation: An ecosystem is a geographic area where plants, animals, and other organisms as well as weather and landscape work together to form a bubble of life. Ecosystems contain biotic and abiotic factors both. Biotic factors include plants, animals, and other organism
Answer: An ecosystem is a community of plants and animals and their physical surroundings.
Explanation: Ecosystem plays an essential role for the existence of living organisms in the planet Earth. A balanced ecosystem is attained as a result of various reasons it includes the live ratio of diverse varieties of organisms in a particular ecosystem, necessary physical, biological, and chemical conditions that promotes the living of organisms, and the balanced atmosphere attained as the result of temperature, wind, and humidity.
As all the above mentioned properties are necessary for maintaining a sustainable ecosystem, it is clearly understood that an ecosystem is a community of plants and animals and their physical surroundings.
Please answer if you know the it!!! If you were on Neptune, would you be able to see all the other planets from it? If not, which ones would you not be able to see?
Answers
Answer: I don’t think you would be able to see any planets.
Explanation:
2- Physics - look at the picture and i will mark you as brainlyliset if you answer correctly.
Answers
Answer:
a; transferred electron provides chlorine with a full outer energy level
Explanation:
Please helppppp and I will mark you Brainliest
Answers
Answer:
1.e
2.i
3.h
4.j
5.c
6.d
7.b
8.f
9.g
10.a
Explanation:
How can you put a wheel and axle into a rube goldberg machine?
Answers
Answer: The wheel and axle is another simple machine. It uses a wheel with a rod attached in the middle as an axle to help it to lift or move loads. In some cases this machine works like a lever to multiply force (like with a doorknob or a fishing reel).
Explanation:
What do the data tell you about your hypothesis?
State how your hypothesis is either supported OR refuted by the data.
my hypothesis is My hypothesis is a supposition or propose, made on the basis of limited evidence as a starting point for further investigation.
Answers
Answer:
If the data supports the hypothesis, then we consider the hypothesis to be verified and true.
Explanation: hope this helps
Answer:
if the data supports the hypothosys then it's most likely correct
Explanation:
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.
A woman performs 2000 J of work in order to push a cart full of groceries 50 meters. How much force did she apply to the cart? *
Answers
Which form of radiation has a frequency of 125 x 10¹⁵?
Answers
WILL MARK BRAINLIEST IF CORRECT ANSWERS - Is the reaction below a balanced chemical reaction? How do you know?
KBr + 30↓2 → KBr0↓3
What is the type of chemical reaction in this equation? (Same equation above)
Answers
Answer:
synthesis
Explanation:
SCIENCE:
In 2-3 complete sentences, explain how a satellite goes into orbit remains in orbit in your own words.
Use the "RAP" method to answer this question:
Restate the question
Answer the question
Prove your answer citing textual evidence from the course.
Don't forget to proofread your answer.
Answers
Answer:
A satellite goes into orbit by getting a ride with a rocket or the Space Shuttle. Gravitational pull and the velocity of the satellite help it remain in orbit.
Explanation:
source: NASA (National Aeronautics and Space Administration)
Use the data in the table to explain how you could determine the volume of the block.
Answers
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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•Then I should :calculate the time of the block to fall
Each question below carries 10 marks.
1) How does the cryosphere help regulate Earth's temperature?
2) What kind of organisms are found in oceanic trenches? Describe.
3) Explain how an Estuary can support a wide variety of food webs.
4) List out and describe the factors that help meteorologists forecast weather.
Answers
Answer:
ans 1 ; It also includes frozen rivers and lakes, which mainly occur in polar areas. The components of the cryosphere play an important role in the Earth's climate. Snow and ice reflect heat from the sun, helping to regulate our planet's temperature.
ans 2 ; Deep-sea trench, also called oceanic trench, any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum oceanic depths, approximately 7,300 to more than 11,000 metres (24,000 to 36,000 feet). They typically form in locations where one tectonic plate subducts under another.
ans 3 ; The calm waters provide a safe area for small fish, shellfish, migrating birds and shore animals. The waters are rich in nutrients such as plankton and bacteria. Decomposing plant matter, called detritus, provides food for many species. ... This means the estuary must support a wide variety of food webs.
ans 4 ; Weather can be defined as the condition of the atmosphere at any given time and place. Weather conditions are determined by six major factors: air temperature, air pressure, humidity of the air, amount and kind of cloud cover, amount and kind of precipitation, and speed and direction of the wind.
Hi guys :) I am in desperate need of help. Thanks <3
Answers
Answer:
yes me to i think its A
Explanation:
What is the number of daylight hours of daylight difference in the summer for two regions located at different latitudes in the northern hemisphere?
Answers
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
Why would observe the Sun “move” across the sky during the day support early astronomers' belief in the geocentric model?
Answers
When developing an experimental design, which action could a scientist take to improve the quality of the results?
A. Make only a few changes to the manipulated variable.
B. Identify any biases about the answer to the scientific question.
C. Include as many details as possible when writing the conclusion.
D. Share her ideas through peer review.
Answers
Answer:
B
Explanation:
This helps improve the quality.
The action that could a scientist take in order to improve the quality of the results is as follows:
Identify any biases about the answer to the scientific question.Thus, the correct option for this question is B.
What is an Experimental design?The Experimental design may be characterized as a methodology of research in the field of sciences in which a controlled experimental factor is exposed to special treatment with the intention of comparing with a factor kept constant.
The identification of partiality during the designing of an experiment is foremost important. This is because it significantly leads to an error or it affects the overall quality of the results on the basis of valid evidence.
Therefore, identifying any biases about the answer to the scientific question is an action that could a scientist take to improve the quality of the results. Thus, the correct option for this question is B.
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