Answer:
I Believe the Correct Answer is respiratory system; obtains oxygen so the energy in nutrients can be extracted.
Explanation:
Respiratory System is made for oxygen and involves the Lungs Diaphragm etc.
Please give me Brainliest!
What is the netforce?
Answer:
6 Newtons to the left.
Explanation:
We can convert this into a generic algebra equation by giving directions positive and negative values.
The 6 will be positive, and the 10 and 2 will be negative.
Add 10 and 2 to have 12.
6-12 = -6.
Therefore you have 6 newtons to the left (negative).
1. Metal paper clips do not attract or repel each other. When an electromagnet is placed nearby, the paper clips can be observed to move toward it. Which statement describes this phenomenon?
Paper clips turn into permanent magnets after exposure to a magnetic field.
The electromagnet reacts to the strong force of attraction from paper clips.
Electrons flow freely into the magnetic field, causing the paper clips to move.
Magnetic domains within the paper clips align with the magnetic field.
2. An electromagnet is built using a 9-volt battery with conducting wire connected to a switch and coiled around an iron nail. A pile of metal paper clips is moved close to the iron nail, yet no attraction is apparent between the electromagnet and the paper clips. What is the most likely conclusion to explain this result?
The switch is turned off.
The switch is turned on.
The paper clips are made of a nonmagnetic metal.
There are not enough coils of wire around the iron nail.
3. An experiment modeled the interaction between magnetic force and the change of energy of an object influenced by the magnetic force. The experiment’s researchers observed that the metal wheels of a small car turned as they experienced the force exerted by a magnetic field, drawing the car closer to the magnet. What energy is being gained by the car?
electrical energy
potential energy
kinetic energy
thermal energy
4. Which statement about the current and magnetic field correctly describes this figure as well as all electromagnets?
The current generates and is perpendicular to the magnetic field.
The current, which points upward, is generated by the sporadic magnetic field.
The current generates the magnetic field and is parallel and opposite to the direction of the magnetic field.
The current generated by the magnetic field is parallel and points in the same direction as the magnetic field.
5. Domains are the regions in a material in which the magnetic fields of many of the atoms are aligned facing the same direction. What is the relationship between the electrical current and the alignment of atoms responding to the current?
As current increases, the alignment reverts to its random arrangement.
As current decreases, the alignment becomes continuous.
The alignment of atoms has nothing to do with the changing current.
As current increases, the alignment becomes more organized.
Answer:
Metal paper clips do not attract or repel each other. When an electromagnet is placed nearby, the paper clips can be observed to move toward it. Which statement describes this phenomenon?
- Magnetic domains within the paper clips align with the magnetic field.
An electromagnet is built using a 9-volt battery with conducting wire connected to a switch and coiled around an iron nail. A pile of metal paper clips is moved close to the iron nail, yet no attraction is apparent between the electromagnet and the paper clips. What is the most likely conclusion to explain this result?
- The switch is turned off.
An experiment modeled the interaction between magnetic force and the change of energy of an object influenced by the magnetic force. The experiment’s researchers observed that the metal wheels of a small car turned as they experienced the force exerted by a magnetic field, drawing the car closer to the magnet. What energy is being gained by the car?
- Kinetic Energy
Which statement about the current and magnetic field correctly describes this figure as well as all electromagnets?
- The current generates and is perpendicular to the magnetic field.
Domains are the regions in a material in which the magnetic fields of many of the atoms are aligned facing the same direction. What is the relationship between the electrical current and the alignment of atoms responding to the current?
- As current increases, the alignment becomes more organized.
Explanation:
I just took the test and got a 4-5. I went back to look at the one I got wrong and got the answer so here are all answers to this quick check. Use this as help, don't use it just to cheat!!
Answer: nriesberg31 above is correct :)
Explanation
What is the resultant force on the human cannonball in the
vertical direction when she is flying through the air?
Answer:
heart
Explanation:
A bicycle is 10 m from a wall traveling at a rate of 4 m/s. How far from the wall will it be if it accelerates at a rate of 12 (m/s)/s for 8 seconds
The bicycle is a distance x away from the wall at time t according to
x = 10 m + (4 m/s) t + 1/2 (12 m/s²) t ²
so that after t = 8 s, it will be
x = 10 m + (4 m/s) (8 s) + 1/2 (12 m/s²) (8 s)² = 426 m
away from the wall.
A bear scratches his claws on a big pine tree. Does the bear do work on the tree? why or why not?
(btw it has to do with physics) ITS NOT A GENERAL QUESTION.
Answer:
The bear is actually sharpening his claws. That's the only reason he scratches a tree with his claws
Explanation:
The frequency of the wave is 0.4 Hz. Calculate the period.
Answer:
use the formula
Explanation:
F = 1/T
where F = frequency and T = period
so put 0.4 Hz into the frequency
0.4 =1/T
T = 2.5 seconds
hope this helps
Laura puts her file cabinet on a small cart with wheels which will occur. A Laura will increase the amount of friction. B Laura will reduce the force she needs C Laura will decrease the amount of motion D Laura will increases the force she needs
Answer: b
Explanation:
Laura will increase the force she needs. When Laura puts her file cabinet on a small cart with wheels, the cart will experience less friction compared to the file cabinet directly resting on the ground. The correct answer is option D.
The presence of wheels reduces the contact area between the cart and the ground, leading to lower frictional forces. As a result, it becomes easier for the cart to move. However, the file cabinet still possesses its original mass, so to accelerate the cart (and the cabinet) to a certain speed or maintain a constant velocity, Laura will need to exert a greater force on the cart due to the reduction in friction. Therefore, the correct answer is D - Laura will increase the force she needs.
To know more about frictional forces, here
brainly.com/question/13707283
#SPJ2
According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail...
A)creates a friction with the hammer
B) disappears into the wood
C) exerts an equal force back on the hammer
D) moves at a constant speed
Answer:
C) Exert an equal force back on the hammer
Explanation:
Every action has an equal and opposite reaction
also just trust me.
Make me brainlist
The body weighing 3.5 kg moves in the horizontal plane under the action of force F. During 3 s of movement the body traverses the path 25 m. Find the value of the force F acting on the body. Friction to be neglected.
Answer:
given..
m= 3.5
t= 3
d=25
f=?
now....a...
25=1/2a×9
a=50/9
f=ma=35/10×50/9=19.4N
Which one of the following is NOT a phenotype?
O Red Hair
O Brown Eyes
O Red/Green Blood
O Five foot tall girl
O These are all phenotypes
A boy on a bicycle drags a wagon full of newspapers at 0.800 m/s for 30.0 min using a
force of 40.0 N. How much work has the boy done?
Answer:
=57600joules
Explanation:
Given data
Velocity =0.8m/s
Time = 30*60=1800 seconds
Distance =Velocity x time
Distance =0.8*1800
Distance =1440m
Work done = force x distance
Work done =40*1440
Work done =57600joules
Hence the work Done is 57600joules
Heat flows from hotter regions of an object to cooler regions of
an object. True or false?
Answer:
true
Explanation:
Answer:
True
Explanation:
I need to find the total mechanical energy. I think the first one is correct but the second one is wrong
Answer:
di ko po alam ang sagot baka
po pang grade 9 po yan
Explanation:
sana po magets nyo po
which of the following cannot be used for measurement of time
a A leaking tap
b simple pendulum
c shadow of object during the day
d blinking of eyes
Answer:
D. blinking ofeyea
Explanation:
not really sure
How is the wave speed calculated?
Que se debe cumplir para que la tabla permanezca en equilibrio Es un balancin con dos niños el primero m1= 45kg el segundo m2=38kg Del centro a la izquierda existe una distancia de 160 CM Hallar la distancia del centro a la derecha
formula: m1 * d1 = m2 * d2
datos:
m1= 45 kg
d1= 160 cm
m2= 38 kg
d2= x
reemplazamos datos en formula:
45kg * 160cm = 38kg * d2
El 38 pasa al otro lado de la igualdad a dividir:
(45kg * 160cm) / 38 kg = d2
Resolvemos: (kg se cancela con kg, quedando solo los cm)
7200cm / 38 = d2
Resultado:
d2 = 189.5 cm
Respuesta: La condición que se debe cumplir es que la distancia del centro al niño de la derecha sea de 189.5cm
Explain why the following statement is either true or false: The idea that all matter consists of the elements was first introduced a few hundred years ago
It is a true statement that the idea that all matter consists of elements was first introduced a few hundred years ago.
What is the matter?Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gas, and plasma.
These different states of matter have different characteristics according to which they vary their volume and shape.
Individuals have believed that earth, air, water, and fire are the only four elements that make up matter for roughly two thousand years.
For more than two thousand years, Aristotle's theory that all matter is composed of just four elements was accepted, but only around 500 years ago did scientists begin to find all of the elements that are currently recognized.
Beginning around five hundred years ago, scientists started learning about all of the elements that are currently recognized.
To learn more about the matter here, refer to the link;
brainly.com/question/9402776
#SPJ2
A(n) _______ is a line in which waves move that are moving together all in the same phase
Light wave
Wave front
Incident beam
Dark wave
Answer:
wave front
Explanation:
wave front is an imaginary line of a wave that joins all adjacent points that are in phase,
so that's the definition, and you apply it to the question
it obviously can't be the rest
hope you get it
please mark it brainliest
Answer:
B Wave front
Explanation:
EDG 21
A 2500-kg car is being pushed up a hill at an angle of 35 degrees. Determine the gravitational
force pulling down on the car if it is accelerating up the hill at a rate of 5 m/s/s.
Answer:
The force that pulls the car down is Wₓ = 14052.6 N and the one that pushes the car up is F = 26552.6 N
Explanation:
For this exercise we will use Newton's second law, let's set a reference system where the x axis is parallel to the plane, in the adjoint we can see the forces in the system.
sin 35 = Wₓ / W
cos 35 = W_y / W
Wₓ = W sin 35
W_y = W cos 35
Wₓ = 2500 9.8 sin 35
Wₓ = 14052.6 N
let's write the equations for each axis
and
Y axis
N-W_y = 0
N = W_y
X axis
F -Wₓ = m a
F = Wₓ + m a = mg sin 35 + m a
F = m (a + g sin 35)
let's calculate
F = 2500 (5 + 9.8 sin 35)
F = 26552.6 N
The force that pulls the car down is Wₓ = 14052.6 N and the one that pushes the car up is F = 26552.6 N
What part of the eye protects your eye from scratches?
retina
pupil
cornea
iris
Answer:
Cornea
Explanation:
The outer layer of the cornea is covered by epithelial cells that protect the surface. A corneal abrasion may result from dragging a piece of debris across the surface and scraping off the epithelial cells.
Enter a range of values for x.
a
a
3x-90 930
26
27
Answer:
32[tex]3x - 9 + 93 = 180 \\ 3x + 84 = 180 \\ 3x = 180 - 84 \\ = 96 \\ x = \frac{96}{3} \\ x = 32[/tex]
Answer:
the answer is 3 and 34 i just took the quiz
A student drops a ball out of a helicopter flying 40.0m/s horizontally at an altitude (height) of 77.0m. Neglect drag.
How long did the ball remain in the air?
How far did the ball travel horizontally before striking the ground?
Will mark as brainliest!
What charges must the particles have to create the electric field shown?
A. X and Y are both positive
B. X is negative and Y is positive.
C. X and Y are both negative.
D. X is positive and Y is negative.
Answer: Choice A, that X and Y are both positive
Explanation: positive charges are attracted to negative charges, so for their electric fields, positive charges point outward while negative charges point inward. In this model, it shows that both X and Y are pointing outward, hence they both have to have positive charges
Dominique and her sister are practicing their basketball skills at the park. If both Dominique and her sister both throw their basketballs at the same time and they hit each other. What would happen to their basketballs? a) Only the basketball's speed would be changed b) Only the basketball's directions would be changed c) Both the basketball's speed and direction would change d) Neither the basketball's speed nor direction would change
Answer:
Option C, Both the basketball's speed and direction would change
Explanation:
When two objects travelling with certain speed interact with each their internal forces changes and hence their motion changes simultaneously.
In general cases it is said that momentum is conserved. Momentum is nothing but just the product of mass and velocity.
As the motion of the football changes, then momentum also changes. Since mass is a constant value, it is the velocity of the football that changes.
Hence, both speed and direction of both the football changes.
Option C is correct
A house of mass 500 kg is lifted 25 m by balloons.
Calculate the increase in gravitational potential energy, Ep.
(g = 10 N/kg)
Enter your answer as a number - NO units
A jet play sits on the runway and then rapidly accelerates does it go to potential to kinetic energy?
A negative charge of -2 C and a positive charge of 5 C are separated by 84,752 m. What is the force between the two charges?
Answer:
F = 12.52 N
Explanation:
Given that,
Charge, q₁ = -2 C
Charge, q₂ = 5 C
The distance between charges, d = 84,752 m
We need to find the force between the two charges. The force between two charges is given by :
[tex]F=k\dfrac{q_1q_2}{d^2}\\\\F=9\times 10^9\times \dfrac{2\times 5}{(84752)^2}\\F=12.52\ N[/tex]
So, the force between charges is 12.52 N.
If too much energy is given to an electron that is above the threshold
frequency what happens to the extra energy?
Answer:
The electron gives up It's extra energy in a form called "photon light" and falls back down to its normal energy level
Explanation:
Please Help!! This is for my Science Assignment but I dont even know how to do the last part (d; Find frictional force)
Answer:
I known this much much except c and d. Hope this helps, thank you !!
Pls, help with this! I'm having trouble. will give points!!
Answer:
yes
no
no
no
no
yes
Explanation: