A bird sitting on a hinged perch takes off from the perch, pushing the perch
in the opposite direction. The momentum of the perch
Answers
Answer:
The momentum of the perch is equal to it's own momentum gather to take off
Explanation:
According to the Newton third law of motion which state that: in every action, there will be an equal and opposite reaction.
This is the law that helps us to walk, paddle boats e.t.c.
And momentum is always conserved. Therefore, the momentum of the perch is equal to it's own momentum gather to take off
Related Questions
help please fill in the blank
When you look at the Sun through a filtered telescope, the visible portion of the Sun appears blotchy.
These blotches are called (BLANK)
. The layer of the Sun where these occur is called the (BLANK)
.
Answers
Answer:
sunspots; photosphere
Explanation:
Over time, the variation that gives an advantage
A. can limit the number of individual organisms.
B. becomes less common in the population.
C. can limit the number of selective pressures.
D. becomes more common in the population
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Answer:
The answer is D. becomes more common in the population
Explanation:
PLEASE HELP HISTOGRAMS
Answers
Answer: B
Explanation:
A histogram is a graphical representation that organizes a group of data points into user-specified ranges
____________ and ______________ work on the principle of Pascal’s law.
Answers
Answer:
gas and liquid?
Explanation:
"put a bowl of butter in the microwave and set a timer for twenty seconds. Observer the state and properties of the butter after it has been in the microwave for twenty seconds"
PLEASE HELP and say the physical change of butter when its microwaved!!
Answers
Answer:
The physical change of the butter in the microwave is the butter melting
Explanation:
How are deltas formed?
***NEEEDD HELPPP ON A TIMEE WILL MARK BRAINLY ***
erosion of softer rock
connection of channels
deposition from flow into a lake or an ocean
creation of large, flat areas by flooding deposits
Answers
Answer:
The answer should be C. Deposition from flow into a lake or an ocean.
Explanation:
A delta is formed when deposition of sediment flows into a small drop of land from an ocean or lake.
Answer:
Deposition from flow into a lake or an ocean.
Explanation:
the distance between two stations is 300 km.a train takes 5 hours to cover this distance. calculate the speed of the train.
Answers
Answer:
60 km/h
~16.7 m/s
Explanation:
speed= s1-s0/t1-t0
speed= 300-0/5-0= 60 km/h
60 km/h / 3.6 = ~ 16.7 m/s
Answer:
it is 60 kmh
Explanation:
it is 60 kmh because 300÷ 5=60
can you please mark brainly because i had it but for no reason someone deleted my answer and brainly took away my points
Which of these can only measure time interval and not the time of day?Immersive Reader
(1 Point)
sand clock
sundial
pendulum clock
quartz clock
Answers
If two objects are compared at a certain distance, according to Newton's law of universal gravitation, what is true? Complete the sentences using the phrases below.
stronger gravitational force. 1. Both objects have mass and therefore have
less gravitational force. 2. Lower mass objects have
a gravitational force. 3. Higher mass objects have
Answers
Answer:
Pls Mark As Brainliest!!!!!!!!!
Explanation:
Gravity is More Than a Name
The Apple, the Moon, and the Inverse Square Law
Newton's Law of Universal Gravitation
Cavendish and the Value of G
The Value of g
As discussed earlier in Lesson 3, Isaac Newton compared the acceleration of the moon to the acceleration of objects on earth. Believing that gravitational forces were responsible for each, Newton was able to draw an important conclusion about the dependence of gravity upon distance. This comparison led him to conclude that the force of gravitational attraction between the Earth and other objects is inversely proportional to the distance separating the earth's center from the object's center. But distance is not the only variable affecting the magnitude of a gravitational force. Consider Newton's famous equation
Fnet = m • a
Newton knew that the force that caused the apple's acceleration (gravity) must be dependent upon the mass of the apple. And since the force acting to cause the apple's downward acceleration also causes the earth's upward acceleration (Newton's third law), that force must also depend upon the mass of the earth. So for Newton, the force of gravity acting between the earth and any other object is directly proportional to the mass of the earth, directly proportional to the mass of the object, and inversely proportional to the square of the distance that separates the centers of the earth and the object.
Answer pls
Complete the table about methods of transferring charge.
Answers
Answer:
a. Charging by Friction (triboelectric charging)
b. Charging by Conduction
c. Charging by Induction
Explanation:
Do clouds need high or low pressure to form?
Answers
Explanation:
I think A low-pressure system draws air in. Any air present is pushed upwards by it.
Mark all the examples of kinetic energy.
1. A phone vibrating when someone calls you.
2. A car driving at 50 mph.
3. A pencil sitting on your desk.
4.A bicycle chained to a bike rack.
5.A ball rolling down a hill
6.A rock sitting on top of a hill.
Answers
Answer:
A phone vibrating when someone calls you.
A car driving at 50 mph.
A ball rolling down a hill.
Place the parts of the human circulatory system in order from highest to lowest degree of internal organization.
→ → →
Answers
Answer: The human circulatory system can be arranged from the highest to the lowest degree of internal organization as follows: Heart, Blood Vessels, Arteries, Veins, and Capillaries.
Explanation: The human circulatory system can be arranged from the highest to the lowest degree of internal organization as follows:
Heart: The heart is a vital organ responsible for pumping oxygenated blood to the body and deoxygenated blood to the lungs. It consists of chambers (atria and ventricles) and valves that regulate blood flow.
Blood Vessels: Blood vessels form a network of tubes that transport blood throughout the body. They can be classified into three types: arteries, veins, and capillaries.
Arteries: Arteries are thick-walled blood vessels that carry oxygenated blood away from the heart to various parts of the body.
Veins: Veins are blood vessels that transport deoxygenated blood from the body back to the heart. They have thinner walls compared to arteries and contain valves to prevent backflow.
Capillaries: Capillaries are tiny, thin-walled blood vessels that connect arteries and veins. They facilitate the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.
Please note that this arrangement is based on the internal organization of the circulatory system, with consideration given to the hierarchical structure and function of each component.
To learn more about the human circulatory system,
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Answer:
Cell, tissue, organ and organ system
Explanation:
The correct order from the lowest to the highest degree of internal organization is the following Cell, tissue, organ, and organ system then at last whole body. It is because the cells are produced in order to form the tissues in the body and in order for an organ to be produced tissues are essential and are formed and in order for a system.
Which is this the correct variable for the equation "____= displacement divided by time"?
velocity
speed
acceleration
Answers
The correct variable for the equation is velocity = displacement divided by time .
The distance traveled divided by the time passed is the definition of an object's average speed. Average velocity can be calculated as the displacement divided by the time. Velocity is a vector quantity.The vector quantity velocity (v), denoted by the equation v = s/t, quantifies displacement (or change in position, s), over change in time (t).What is the connection between time and velocity displacement?Time and distance are both factors in velocity. The pace at which an object changes its position is known as its velocity. Displacement / Time = VelocityThe change in velocity divided by the change in time is the definition of acceleration.
Learn more about connection between time and velocity displacement
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Answer:velociy :)
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.
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!
Calling all physics geniuses! An object is placed 20cm in front of a convex lens whose focal length is 12cm. What type of image is formed?
Super helpful if you could answer in terms of inverted/upright/magnified/diminished/real/virtual...etc.
Answers
1/v + 1/u = 1/f
1/12 - 1/20 = 1/f
5-3/60 =1/f
2/60 = 1/f
1/30 = 1/f
f= 30
This was done by mirror formula
Hope you understood
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
List an example of matter in each of the three states.
Answers
The example of matter in the three states is brick in solid state, water in liquid state and oxygen gas in gaseous state.
1. Solid: A brick is a solid object that maintains a fixed shape and volume.
2. Liquid: A glass of water is a liquid that conforms to the shape of its container but maintains a definite volume.
3. Gas: Oxygen gas in the atmosphere is a gas that does not have a fixed shape or volume, filling the available space.
The three states of matter are solid, liquid, and gas. Solids have a fixed shape and volume, such as an ice cube. Liquids have a definite volume but take the shape of their container, like water. Gases have neither a fixed shape nor volume and fill the entire space available to them, such as the air we breathe.
In summary, the states of matter describe the physical properties of substances based on the arrangement and movement of their particles, with solids having a fixed shape, liquids taking the shape of their container, and gases being free-flowing and filling all available space.
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Solid: An object that keeps a constant shape and volume is a brick.
Thus, Liquid: A glass of water is a liquid that keeps a consistent volume while taking on the shape of its container. Gas: Oxygen gas fills the available space in the atmosphere and does not have a defined shape or volume.
Gas, liquid, and solid matter can exist in any combination. Solids, like an ice cube, have a set shape and volume.
Like water, liquids have a set capacity but adopt the shape of their container. Gases, like the air we breathe, have neither a set shape nor volume and fill all available space.
Thus, Solid: An object that keeps a constant shape and volume is a brick.
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If an object is moving and the forces acting on it are unbalanced in the direction of motion, the object will...
only 2 hours left pls helppp
Answers
The object will slow down
Explanation: if you are walking towards harsh wind, you will slow down because of the pressure pushing you.
A couple wants to build a holiday cottage, the cottage is not connected to an electricity grid, but the cottage is next to a small river. The river is always flowing and never dries up, the weather is often windy.
Which one should they get to receive energy.
a wind turbine
solar cells
Answers
Answer:
Wind turbine since the place is often windy
Your classmate drops a thermometer in a laboratory.What would you advise her to do first?
Answers
Answer:
Advise her to call the teacher.
Explanation:
The teacher will know what to do.
If kilogram is added to kilogram then do we have a derived unit?
Answers
Answer:
derived units are units of measurement derived from the seven base units specified by the International System of Units.
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.
Help me pls!! its on the photo
Answers
^^^^^^^^^^^^^^^^^
HELP ME PLZ !!!!!!!!!!!!!!!!!!!!
Answers
Answer:
Explanation:
Its the 2nd one on the left (the bolded one)
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.
Plate Tectonics Lab Report The outcome variable (dependent variable): the outcome/dependant variable is Test variable (independent variable): the test/independent variable is
please only answer if you have done the paper before
Answers
Answer:
sorry if this isnt 100% correct, but i feel like it should be understandably correct
Test variable (independent variable): the land of the 6 locations
Outcome variable (dependent variable): the location
Explanation:
Question is in the picture
Answers
Answer: Imma say 63 cm
PLEASE HELP ASAP
How are force and velocity related? Give evidence to support your answer.
Answers
state how you would calculate the moment about a pivot. Give the equation and appropriate units
Answers
Answer:
M = F × d
M = F × dM = moment in newton metres (Nm)M = F × dM = moment in newton metres (Nm)F = force in newtons (N)M = F × dM = moment in newton metres (Nm)F = force in newtons (N)d = perpendicular distance of the force to the pivot in metres (m)I hope it will be helpful for you.
Answer:
moment=force x perp. distance from the pivot
unit= Nm