Answer:
Your vocal cords vibrate and then travel through the air to your friends ear. ... loudness is a humans perception of sound intensity, as intensity of a sound wave increases the loudness of a sound wave increases.
~+lil more info+~
Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear.
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Why doesn’t the force you exert when sitting on a chair cause the chair to move?
a. The floor exerts a balancing force on the chair.
b. The floor exerts too much force on the chair
c. The floor exerts an unbalancing force on the chair.
d. The floor exerts no force on the chair.
Answer:
the answer is A
Explanation:
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Which of the following would best represent balanced forces? A. A dog pulling a sled speeds up as he goes down the hill. B. An object traveling at a constant speed of 70 mph. C. A ball rolling across the floor slows down due to friction. D. A man begins pulling a wagon.
What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s?
Group of answer choices
1. KE = 22,050J
2. KE = 1,125J
3. KE = 33,750J
4. KE = 16875J
Describe how the properties of sound waves change as they spread out in a spherical pattern.
To solve this we must be knowing each and every concept related to sound waves. Therefore, a sound waves change as they spread out in a spherical pattern, they go up and down.
What is sound waves?A sound is a type of energy or a vibration that moves through a material such as air or water. Sound may pass through with a gaseous medium as well. It is anything that is audible. The speed that sound varies depending on the medium.
A wave is a medium that transmits energy from one location to another. Waves are classified into three types: transverse waves, longitudinal waves, or surface waves. A sound waves change as they spread out in a spherical pattern, they go up and down.
Therefore, a sound waves change as they spread out in a spherical pattern, they go up and down.
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help me do this question
Answer:
c20800
Explanation:
go to bear khana bro your book looks cheap go and study in durbar kanda school and take somee cash and do ash ah boy
How many significant figures in 0.00850
Answer:
5
Explanation:
These the flow of electrons (the current) and where some of electrons energy gets converted into heat
a. electric currents
b. Insulators
c. Resistors
e. conductors
why we can not measure the total amount of heat energy that a body contains
Answer:
... As has been previously discussed, heat is not something that is contained in an object.
Explanation:
There are three types of friction. ______________ friction occurs when an object is not moving. ______________ friction occurs when an object is moving against another surface. ______________ friction occurs in the case of wheels or other round objects. The amount of friction depends on two things.First, how ______________ the surfaces are; and second, how ______________ the object is. It is ______________ to keep an object moving than to start it moving. This is because static friction is ______________ than sliding friction.
Word Bank:
static
sliding
rolling
bumpy
heavy
easier
greater
Answer:
1. Static friction = not moving
2. sliding friction = moving
3. rolling friction = wheels
4. bumpy the surfaces are
5. how heavy the object is
6. it is easier to keep an object moving
7. static friction is GREATER than sliding friction
Explanation:
(please help!) A 60Kg crate is pulled with a force of 400N at an angle of 30 degrees above the horizontal. A 150N force resists sliding of the crate. (Be sure to do a sketch (FBD)
A) Calculate the weight of the crate:
B) Calculate the components of the 400N force: Fx = ___________. Fy = ____________
C) Calculate the normal force on the crate:
D) Calculate the acceleration of the crate:
E) Calculate the speed of the crate if it started from rest after t = 4 s
What type of circuit is seen in this picture?
-Open
-Parallel
-Series
-AC
it's a. open circuit
Answer:
A) Open
Explanation:
NEED HELP URGENT!!!
These 2
Answer:
Acceleration & 9.8 M/S/S
Explanation:
Pretty self explanatory for question 2, speeding up can easily be related to acceleration, and for question 3
"Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2. When discussing the acceleration of gravity, it was mentioned that the value of g is dependent upon location. There are slight variations in the value of g about earth's surface."
Hope it helped - rida
Need some help with homework but where doing it in class rn
Answer:
now it lets me. B
Explanation:
hope that helps
Which one is an example of a force pushing downward toward the ground.
Group of answer choices
A man pulled weeds in his garden
A woman moved her child from one place to another in a wagon
A bird sat on a telephone wire
A dog tugged on a rope held by a child
Answer: A woman moved her child from one place to another in a wagon
or A bird sat on a telephone wire
Explanation:
Is it true that acceleration occurs when there is a change in speed
Answer:
Acceleration is the rate of change of velocity.
Explanation: For example, acceleration is measured in m/2^2 or meters per second squared. That can also be split up into 2 components. M/s is how speed is measured, and since acceleration is the rate of change of velocity, m/(s*s). You could say that since acceleration is m/s^2, it can also be represented as how much the speed increases over 1 second. if there was an acceleration of 3 m/s^2, the rate of change of speed would be 3m/s every second, meaning that the object would speed up 3m/s every second that passes by.
Hope this helps!
Question 1 (1 point)
An object experiences a force of 25 Newtons for 32 seconds. Calculate the impulse on the object on your own paper and select the correct
answer
a
FONs
600 NS
Oь
Oc
Od
800 Ns
1000 NS
Hello!
[tex]\large\boxed{800Ns}[/tex]
Remember that impulse is equivalent to:
Impulse = force (N) × time (s)
Plug in the given force and time:
Impulse = 25 × 32
Impulse = 800 Ns
A bicyclist with a mass of 50 kg is traveling at a rate of 30 m/s. It accelerates to a rate of 50 m/s in 5 seconds. What is the net force acting on the bicycle?
Answer:
200 N
Explanation:
There is only two needed factors in play here; the mass and acceleration
According to Newton's 2nd Law: F = m*a
Now Acceleration is Velocity over Time, so we have another factor in play: Acceleration = 50-30/5 = 20/5 = 4m/s^2
Net force = (50 kg)(4 m/s^2) = 50*4 = 200 Newtons
Which of the following units are the Standard International units for
displacement?
A. Meters (m)
B. Meters per Second (m/s)
C.Meters per Second Squared (m/s2)
D. Seconds per Meter (s/m)
A duck is floating in a pond. How does Archimedes' description of the buoyant force explain why the duck
doesn't sink?
PLEASE HURRY
Answer:
The upthrust or buoyant force helps the duck doesn't sink.
For example, there is a duck which weighs 3 pounds and tree pints of water also weigh three pounds. In this case the volume of the duck is more than the volume of three pints of water, so the duck floats.
Hope it helps!<3
An example of something that stores chemical energy is? A. Lightning. B.Microwave C.Battery D. Light
Answer:
battery
Explanation:
Discuss the difference between short-term and long-term fitness goals. Provide an example of each
Answer:
. A long-term goal is a goal set for you to achieve with 3-5 years, while short-term goals take a few days, weeks, or maybe months. An example of a short-term is eating like less carbs. An example of a long-term running like a 5k marathon.
Thomas found an organism in his backyard and is trying to classify it into a kingdom. The organism has small roots, and Thomas found it in moist soil with lots of decaying matter. He cut a piece off and put it under a microscope. The piece is multi-celled with nuclei and has cell walls composed of chitin. Which kingdom does Thomas' organism most likely belong to?
Answer:
Kingdom Plantae
Explanation:
Plants are multi-celled, have roots, and are found in the backyard. I also did research but I can't put it in here or else my answer gets deleted. :)
PLZ HELP ME
Which event was a major source of atmospheric oxygen?
photosynthesis
decomposition of water
volcanic eruptions
outgassing
Answer:
photosynthesis
Explanation:
I just took the midterm and got it correct :))
PLZ MAKE BRAINLIEST, thank youuu <3
Friction between two surfaces transforms energy of motion directly to:
Explanation:
What do we call a word that tells about an action ?
Hamid is viewing an image of a bird produced by a set of concave lenses. What must be true about the image? It is a virtual image. It is upside down. It is larger than the actual bird. It is capable of being projected.
The true statement about the image formed by the concave lens is virtual.
Properties of image of formed by a concave lens
The properties of image of formed by a concave lens include the following;
The images are always;
virtual, erect, and diminishedThus, the true statement about the image formed by the concave lens is virtual.
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Answer:
it mf a i think
Which is a feature of a cladogram?BY MOHAMED
I GIVEING A !)) 100 point RIGHT NOW ASP
Answer:
Constructed cladograms all typically share certain key features: Root – The initial ancestor common to all organisms within the cladogram (incoming line shows it originates from a larger clade) Nodes – Each node corresponds to a hypothetical common ancestor that speciated to give rise to two (or more) daughter taxa.
Explanation:
Answer:
one feature of a cladogram is a branch that shows you relations among animals
Explanation:
type of energy found in bread
Answer:
Bread contains energy in form of
Carbohydrates
Explanation:
Answer:
CHEMICAL ENERGY
A weightlifter completes a series of lifts with a 700 N weight. In one lift, he raises the weight to a height of 2.5 m off the ground. The lift takes 0.60 s to complete. What power does the weightlifter have been performing this lift
Answer:
The output power the weightlifter is 2916.67 W.
Explanation:
Given;
weight lifted, W = 700 N
height the weight is lifted, h = 2.5 m
time taken to lift the weight, t = 0.60 s
The output power the weightlifter is calculated as;
Power = Energy applied / time taken
Energy applied = weight lifted x height the weight is lifted
Energy applied = 700 x 2.5
Energy applied = 1750 J
Power = 1750 / 0.6
Power = 2916.67 J/s = 2916.67 W.
Therefore, the output power the weightlifter is 2916.67 W.
The force of air particles over an area is ________
temperature.
pressure.
volume.
kelvins.
