Answer:
B Both are directly related to movement.
Endocrine system and muscular system are directly related to movement while both stretching and constricting exercises are important for muscle health. So, the correct options for 1 and 2 are B and A respectively.
What is Endocrine system?The endocrine system is defined as the communication system made up of feedback loops that send hormones released by an organism's internal glands into the circulatory system, controlling distant target organs. The neurological control center for all endocrine systems in vertebrates is the hypothalamus. The endocrine glands lack ducts that would transport their output to the surface. These are known as glands without ducts.
Growth and development, metabolism, and reproduction are just a few of the essential processes in the body that are regulated by the hormones the endocrine system secretes. Movement has a close relationship with the endocrine and muscle systems.
Therefore, the correct options for 1 and 2 are B and A respectively.
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Political polls taken before major elections are examples of ________ research.
Answer:
survey
Example:
none
A 30N force is applied to an object having a mass of 300 grams. Calculate the acceleration of the moving object
Answer:
9000 m/s
Explanation:
A=Fm
Acceleration = Force x Mass(Newtons)
Hãy giải đề giúp tui
Answer:
ở đâu?
Explanation:
................
An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the
right. What is the displacement of the object?
O1
O 5
O 7
O 13
two children, A and B, fire identical 10.0g all bearings from a catapult. the elastic band of each catapult extended by 0.10m and then released to fire the ball bearings. Child A's elastic band has a spring constant of 144N/m. calculate the energy transferred to the kinetic energy store of the child A's ball bearing.
thanks soo much (:
WORTH 50 PTS
The energy transferred to the kinetic energy store of the child A's ball bearing is 0.72 J.
Energy transferred to the kinetic energy
The energy transferred to the kinetic energy store of the child A's ball bearing is determined from the principle of conservation of energy as shown below;
K.E = Ux = ¹/₂kx²
K.E = ¹/₂ x 144 x 0.1²
K.E = 0.72 J
Thus, the energy transferred to the kinetic energy store of the child A's ball bearing is 0.72 J.
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What is an inclined plane that is wrapped in spiral
Answer:
A screw
Explanation:
The threads of a screw act like an inclined plane to increase the distance over which you exert the input force.
Distance between gas molecules in the case of:
-Increase in temperature
-Decrease in temperature
-Increase in volume
-Decrease in volume
-Increase in pressure
-Decrease in pressure
Answer:
-Increase in temperature: increase
-Decrease in temperature: decrease
-Increase in volume: increase
-Decrease in volume: decrease
-Increase in pressure: increase
-Decrease in pressure: decrease
Explanation:
-Increase in temperature:
● Molecules gain kinetic energy and move fast thus increasing distance
-Decrease in temperature:
● Kinetic energy of molecules decrease so they have smaller distance
-Increase in volume:
● Molecules have more space to move around so distance increase
-Decrease in volume:
● Less space, molecules collide with each other because of decreased distance thus increasing pressure
-Increase in pressure
● Molecules collide with each other and the walls of container increasing pressure so molecules move faster and it increases distance
-Decrease in pressure:
● Molecules collide with each other and walls of container less frequently so distance between molecules decrease
if a person with a mass of 70kg is standing on scale in an elevator when the cable snaps, what will the reading on the scale be during free-fall?
Answer:
The reading will be the same.
Explanation:
Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.
Giving me the brainest will be helpful.
The reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.
What is a weighing scale?A weighing scale known as a balance is a device used to quantify weight or mass. The classic scale is made up of two plates or bowls that are suspended at equal distances from a fulcrum.
A person with a mass of 70kg is standing on a scale in an elevator suddenly the cable snaps, The reading on the scale during free-fall will be the same as the initial elevator condition.
Hence the reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.
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Friction can be reduced by using ___________.
Answer:
Make the surfaces little more smoother. ...
Lubrication is another way to make a surface smoother. ...
Make the object more streamlined. ...
Reduce the Normal force acting between the surfaces in contact. ...
Reduce the contact between the surfaces, so that less number of bonds will be formed.
what is the angular speed of the tip of the minute hand on a clock, in rad/s?
Answer:
0.10472 radians/minute
Explanation:
It completes a full rotation around that circular clock in 60 minutes. So the angular speed of the minute hand is 2 * pi / 60 = pi / 30 = 0.10472- radians/minute .
The angular speed is the ratio of angular displacement to time. Then the angular speed is π/1800 radians per second.
What is angular speed?The rate of change of angular displacement is called angular speed.
We know that the angular speed formula
[tex]\rm Angular \ speed = \dfrac{Angular \ displacement }{time}[/tex]
The angular speed of the tip of the minute hand on a clock, in rad/s, will be given as
We know that in one hour it rotates 360 degrees or 2π. And in one hour we have 3600 seconds. Then the angular speed will be
[tex]\rm Angular \ speed = \dfrac{2\pi}{3600}\\\\\\Angular \ speed = \dfrac{\pi}{1800}[/tex]
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how much is a city of a body when it covers 600m in 5 min?
it is an answer : 2 m/s
i don't know sloution
Answer:
2m/s
Explanation:
5min × 60sec
=300
now,
600÷300
=2
Describe the difference between distance, position, and displacement
Answer:
Explanation:
Position is the location of the object (whether it's a person, a ball, or a particle) at a given moment in time.
Displacement is the difference in the object's position from one time to another.
Distance is the total amount the object has traveled in a certain period of time.
I hope this helps!
Fuzzy and kermit
are driving at 10 m/s but slow down to meters per seconto avoid hitting a squirrel a time it takes in a slow down is 3.1 seconds what is the acceleration
Answer:
-2.9m/s[tex] { - 2.9ms}^{2} [/tex]How could you set up the Strong and Weak magnets to show Barry that strong magnets and weak magnets can BOTH repel and attract object's?
Answer:
To show that magnets repel, you must place the strong and weak magnets to another magnet with their poles being both south or both north facing eachother.
To show they attract, place opposite poles near eachother.
I WILL CROWN THE BRAINLIEST IF YOU ANSWER CORRECT
ELECTROMAGNET WAVES
Travel through what?
Carry energy, often called what?
Emitted by what?
Three Examples of electromagnetic waves.
Answer:
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
Example: Radio waves, microwaves, visible light, and x rays
I don't understand this QUESTION
This electric force calculator will enable you to determine the repulsive or attractive force between two static charged particles. Continue reading to get a better understanding of Coulomb's law, the conditions of its validity, and the physical interpretation of the obtained result.
How to use Coulomb's law
Coulomb's law, otherwise known as Coulomb's inverse-square law, describes the electrostatic force acting between two charges. The force acts along the shortest line that joins the charges. It is repulsive if both charges have the same sign and attractive if they have opposite signs.
Coulomb's law is formulated as follows:
F = keq₁q₂/r²
where:
F is the electrostatic force between charges (in Newtons),
q₁ is the magnitude of the first charge (in Coulombs),
q₂ is the magnitude of the second charge (in Coulombs),
r is the shortest distance between the charges (in m),
ke is the Coulomb's constant. It is equal to 8.98755 × 10⁹ N·m²/C². This value is already embedded in the calculator - you don't have to remember it :)
Simply input any three values
When you describe a liquid as thick, are you saying that it has a high or a low viscosity?
The liquid with greater thickness will be more viscous since it flow speed is lower. Therefore, the more thick liquids is more viscous and flow slowly.
What is viscosity ?Viscosity of a liquid is the resistance to its flow. Viscosity depends on the density and thickness of the liquid. The more thicker the liquid the more viscous it will be.
Less thick liquids will flow fastly. For example water is a less viscous liquid as we see it flow so quickly. Whereas, honey, oil, etc are more viscous and the mobility of their liquid particles are resisted by viscosity.
The more viscous liquids generally has higher specific heat capacity as in the case of water and oil. The particle - particle attractive force is higher in highly viscous liquids.
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a tennis ball is launched from the floor at a velocity of 90 m/a at an angle of 13 degrees to the horizontal. calculate its range
Answer:
~186
Explanation:
1) R= (V^2 × sin A ) /g
V=90 m/a
A= 13°
g= 9.8 or 10 (I will take 9.8 for right result)
R= (90^2 × sin 13) / 9.8 = 185.928932672 ~ 186
Công của lực điện không phụ thuộc vào?
Explanation:
what language is thathow do I literally understand thatFriction force affects the work done by the applied force.
T OR F
Answer:
TRUE.
Explanation:
YES IT EFFECTS.
IT MAY HELP YOU.
Answer:
True
Explanation:
true because if you where to push a ball on a beach the friction with the sand would make it harder to push then being on concrete.
a car travels west for 240km in 4 hr what is the car velcity
I NEED THIS ANSWERED ASAP NO LINKS !!!
I need a answer that is 100% ACCURATE
Answer:
it increasees
Explanation:
its 100% acurate dont worry
the quantity x to be determined from the equation X=P-Q.
Answer:
the correct answer will be 6.82 %that is 7%
p(1.27)-q(0.83) =x=0.44
0.02+0.01 =0.03 (maximum uncertainty)
percentage uncertainty =0.03/0.44×100 %
=6.82%
=7%
Explanation: it was d on my end
Emmy is running a marathon to try to get a Boston qualifying time. She runs at a constant velocity of 6 mph from 7:00 am to 8:30 am.
At 9:00 am, her velocity jumped to 8 mph. She completed her race at 10:30 am at a velocity of 10 mph. Calculate her acceleration
from 9:00 am - 10:30 am.
Answer:
answer is c
Explanation:
white light such as that from the sun is actually only ultraviolet light.?
Answer:
no
Explanation:
White light, which is the visible light, from the sun contains all the rainbow colors; however, ultraviolet is a radiation emitted from the sun and it is nonvisible to humans.
No white light and ultraviolet light are the two types of radiation coming from the sun.
What are solar radiations?The light coming from the sun contains different types of radiation that travel at different wavelengths this radiation is called solar radiation.
Types of solar radiation are visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
Due to this visible light, we can see on earth because it has the frequency that our eyes can see.
visible light contains seven colors that are at different wavelengths. So when the diffraction of visible light takes place we can see these seven colors.
Thus white light and ultraviolet light are the two types of radiation coming from the sun.
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A projectile is shot from the edge of a cliff 125 m above the ground level with an initial speed of 105 m/s at an angle of 37 degrees with the horizontal. (a) Determine the vertical velocity final. (it is not - vi, since we are on a cliff 125m up)
A.)80.2 m/s
B.)-80.2 m/s
C.)40.2 m/s
D.)-40. 2 m/s
Answer:
alright we have to find the initial velocity of the projectile which was shot from the edge of a cliff 125m above ground level with the initial speed being equivalent to 105 m/s at an angle of 37 degrees i would assume the answer to be C. hope this helps im a tad rusty at this subject
Explanation:
una fila di ballerini lunga complessivamente 2,3 m sta avvicinandosi perpendicolarmente a uno specchio. Se il primo ballerino, essendo miope, percepisce i contorni in modo nitido degli oggetti lontani al massimo 6 m, a quale distanza dallo specchio comincerà a vedere chiaramente l'ultimo ballerino della fila?
Answer:
A Benjamin Franklin
B George Washington
C Abraham Lincoln
D John Adams
Q1. A 130 N horizontal force keeps a 30 kg chair moving at a constant velocity. Find the
coefficient of kinetic friction between the chair and the floor.
The coefficient of kinetic friction between the chair and the floor is 0.442.
The given parameters;
horizontal force on the chair, F = 130 Nmass of the chair, m = 30 kgThe normal force on the chair is calculated as follows;
Fₙ = mg
Fₙ = 30 x 9.8 = 294 N
The frictional force between the chair and the floor is calculated as follows;
Fk = μFₙ
The net force on the chair is calculated as follows;
[tex]\Sigma F_x = 0\\\\F- \mu_k F_n = 0\\\\130 - \mu_k (294) = 0\\\\\mu_k = \frac{130}{294} \\\\\mu_k = 0.442[/tex]
Thus, the coefficient of kinetic friction between the chair and the floor is 0.442.
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an object at rest has no ________ energy, but it may have ________ energy resulting from its location or structure.
Answer: first blank: kinetic
Second blank: potential
Explanation:
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Scientists can determine a fossil's actual age by using which of the following methods?
hypothesizing
relative dating
radiometric dating
estimation