Answer:
Masseter
The masseter runs from the temporal bone (that forms part of the sides and base of the skull) to the lower jaw (the mandible). It lifts the lower jaw, to close the mouth. The masseter is the strongest muscle in your body.
Temporalis
The temporalis begins on two bones of the skull, at the front (the frontal) and at the side and base (the temporal). It runs to the top of the lower jaw (the mandible). Like the masseter, the temporalis helps close the mouth.
Deltoid
The deltoids are the triangular muscles of the shoulder. The strongest point is the central section, which raises the arm sideways. The front and back parts of the muscle twist the arm. Deltoid comes from the Greek word deltoeides, meaning shaped like a (river) delta, which is triangular.
Pectoralis major
(The pecs!) The pectoralis major is a large, fan-shaped muscle. It covers much of the front upper chest, beginning at the breastbone (or sternum) including the second to the sixth ribs.
Adductor Longus
The adductor longus is located on the inner thigh. Adduct means move, so this muscle allows the thigh bone (the femur) to move inward and to the side.
Soleus
Located in the lower leg, the soleus runs from the lower leg bones (the tibia and fibula) to the heel (the calcaneus). The soleus muscle flexes the foot by moving the foot at the ankle. It also helps circulation by pumping blood back up towards the head.
Biceps brachii
The biceps brachii runs from the shoulder to the elbow. It is attached to the shoulder blade (the scapula), and extends along the front surface of the upper arm bone (the humerus). When the bicep contracts, the arm bends at the elbow. Notice that humerus sounds like humour – we call this area of the elbow the funny bone.
The Buccinator
The buccinator muscle compresses the cheek. This muscle allows you to whistle, blow, and suck; and it contributes to the action of chewing.
The Suprahyoid
The suprahyoid muscles raise the hyoid bone, the floor of the mouth, and the larynx during deglutition.
The Splenius
The splenius muscles originate at the midline and run laterally and superiorly to their insertions. From the sides and the back of the neck, the splenius capitis inserts onto the head region, and the splenius cervicis extends onto the cervical region. These muscles can extend the head, laterally flex it, and rotate it.
describe how an electromagnet can be switched on and off.
Answer:The magnetic field around an electromagnet is just the same as the one around a bar magnet. It can, however, be reversed by turning the battery around. Unlike bar magnets, which are permanent magnets, the magnetism of electromagnets can be turned on and off just by closing or opening the switch.
What happens to an object's gravitational potential energy as it falls from some height?
Answer:
Decreases
Explanation:
As an object falls from some height, the gravitational potential energy of the object decreases.
Potential energy is the energy due to the position of a body.
The potential energy is mathematically expressed as:
Potential energy = mass x acceleration due to gravity x height
So, potential energy is directly proportional to mass and height.
The higher the mass and height, the more the potential energy.
What is polarization. How can we remove it?
A sample of an unknown metal has a mass of 0.5 kg. Adding 1985 J of heat to the metal raises its temperature by 10 K. What is the specific heat of the metal
Answer:
Cp = 397 [J/kg*K]
Explanation:
By means of the energy equation for heat transfer in substances and objects, we can calculate the specific heat. In this way, we have the following equation.
[tex]Q=m*C_{p}*DT[/tex]
where:
Dt = temperature change = 10 [K]
m = mass = 0.5 [kg]
Q = heat = 1985 [J]
Cp = specific heat [J/kg*K]
Now replacing:
[tex]1985=0.5*C_{p}*10\\C_{p}=\frac{1985}{0.5*10}\\C_{p}=397[\frac{J}{kg*K} ][/tex]
Dos cargas electrica 6x10°6 C Y 3X10°6 C se encuentra sepadas 0,5 m. ¿Cual es la Magnitud de la fuerza de atraccion entre las cargas?
Answer:
La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.
Explanation:
La fuerza eléctrica de atracción entre dos partículas cargadas eléctricamente es determinada por la ley de Coulomb, la cual dice que la fuerza eléctrica es directamente proporcional a la carga eléctrica e inversamente proporcional de la distancia entre las partículas. Matemáticamente hablando, la formula es descrita a continuación:
[tex]F = \kappa\cdot \frac{q_{A}\cdot q_{B}}{r^{2}}[/tex] (1)
Donde:
[tex]F[/tex] - Fuerza electrostática, medida en newtons.
[tex]\kappa[/tex] - Constante electrostática, medida en newton-metros cuadrados por Coulomb cuadrado.
[tex]q_{A}[/tex], [tex]q_{B}[/tex] - Cargas eléctricas, medidas en Coulomb.
[tex]r[/tex] - Distancia entre partículas, medidas en metros.
Si sabemos que [tex]\kappa = 9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}[/tex], [tex]q_{A} = 6\times 10^{-6}\,C[/tex], [tex]q_{B} = 3\times 10^{-6}\,C[/tex] y [tex]r = 0.5\,m[/tex], entonces la magnitud de la fuerza de atracción entre las cargas es:
[tex]F = \left(9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot \frac{(6\times 10^{-6}\,C)\cdot (3\times 10^{-6}\,C)}{(0.5\,m)^{2}}[/tex]
[tex]F = 0.648\,N[/tex]
La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.
Household appliances convert electricity into one or more different forms of energy. An electric fan can be described as converting electricity into :
Answer: heat energy, sound energy, and mechanical energy only
Explanation: I did the test in got it right.
A satellite is in orbit 3.110106 m from the center of Earth. The mass of Earth is 5.98011024 kg Calculate the orbital
period of the satellite.
Answer:
9194.4278 seconds
Explanation:
Orbital period is given by :
T² = (4π²r³) /GM
G = Gravitational constant = 6.67 * 10^-11
M = 5.9801 * 10^24 kg
r = (3.110 * 10^6 m + 6378000 m) =3110000 + 6378000 = 9488000 m
T² = (4π² * 9488000^3) / (6.67* 10^-11 * 5.9801*10^24)
T² = 3.37197 * 10^22 / 398872670000000
T² = 84537504.161415
T = sqrt(84537504.161415)
T = 9194.4278 seconds
ILL MARK BRAINLEST
Question 13: A food web of the Yellowstone National Park ecosystem is
provided below. If a sudden outbreak of disease severely reduced the
number of wolves in Yellowstone National Park very rapidly, what are two
changes that might happen to the local food web? Fully explain using
claim, evidence, and reasoning.
Answer:
they all will die and so will we
Explanation:
Answer:
3 animals will thrive better
Explanation:
If the number of wolves is reduced, 3 animal species usually eaten by the wolves will have a better chance of survival.
Describe the sequence of mechanical energy events that lets you hear the
muffled sound of a radio from inside your neighbor's closed house.
Answer:
Starting from the beginning.
There is a radio signal that is received by the radio.
The radio interprets the signal and produces a current in response to it.
That current goes to a membrane that oscillates producing sound, the oscillation of the membrane is the first mechanical energy event here.
These oscillations can travel in material mediums, for example, the air. Then there is a production of waves (soundwaves) that travel in the air (second event).
Those waves now hit the wall that separates you and your neighbor, as the wall is made of a material, the soundwaves can travel through it, but they will be dispersed (a part of the waves rebounds on the wall, and another part is dissipated as the wave travels through the wall), there is also a transmitted part of the wave, that is now in your house. (this change of medium will be the third event). Now only the lower frequencies survive, this is why the sound is "muffled".
Those remaining frequencies now travel in your house, and when they reach your ear, your ear sends a signal to your brain and your brain interprets them as sound. The wave interacting with your ear will be the fourth and last mechanical energy event.
Please help me
An automobile is driving uphill. Which form of energy is not involved in this process?
electromagnetic
potential
kinetic
chemical
An automobile is driving uphill. Which form of energy is not involved in this process?
Choosing:electromagnetic
potential
kinetic
chemical
Answer:Electromagnetic
#READINGHELPSWITHLEARNING #CARRYONLEARNING #STUDYWELLAnswer:Electromagnetic said the person above me wait AYO HEAR ME OUT-
Explain the principles of work in physics.
27. Improvements in space technology have greatly helped scientists better understand the stars, planets, and other
celestial bodies in our universe. How do technological advances in astronomy benefit our society on Earth?
A. Technological advancements in astronomy allow scientists to better understand Earth and find solutions to
preventing global warming
B. Technological advancements in astronomy have led to the development of thousands of products such as
new materials, medical devices, and communications satellites.
C. Technological advancements in astronomy have led to the development of many theories of how the
universe began and how the Earth formed.
D. Technological advancements in astronomy have helped improve our society's economy.
Answer:
B
Explanation:
Technological advancements in astronomy have led to the development of thousands of products such as
new materials, medical devices, and communications satellites.
For example, the production of instruments like telescopes, microscopes, and other measuring devices now enables us to identify things that we couldn't examine with the naked eye.
Similarly, the development of communication satellites has led to the emergence and improvements in the mobile network industry.
What is the mechanical advantage of the following pulley? The pulley has six supporting
ropes but the force end is down.
Answer:
In a pulley, the ideal mechanical advantage is equal to the number of rope segments pulling up on the object. The more rope segments that are helping to do the lifting work, the less force that is needed for the job.
if a charge has a lot of electric potential energy, what is it said to have?
Answer:
current?
Explanation:
Explain how neutrons enable a nuclear chain reaction to take place. (2)
Answer:
Explanation:
In addition to the 'daughter' products, two or three neutrons also explode out of the fission reaction and these can then collide with other uranium nuclei which are unstable so these cause further fission reactions. This is known as a chain reaction .
Hope this helps
A force, 10 N drags a mass 10 kg on a horizontal table with an acceleration of 0.2
m/s2. If the acceleration due to gravity is 10 m/s2, the coefficient of friction between
the moving mass and the table is?
Answer:
20&£+)##&843&()-_££-()&_2+0&&-£_!)
Compared to the cells in a healthy body, Elisa’s cells are getting far fewer ____________________ molecules.
Answer:
glucose
Explanation:
the length of iron rod at 100 C is 300.36 cm and at 159 C is 300.54 cm.Calculate its length at 0 c and coefficient of linear expansion of iron
Answer:
The length at 0 °C is 300.05 cm
Coefficient of linear expansion of iron is 1.02×10¯⁵ C¯¹
Explanation:
From the question given above, the following data were obtained:
Length (L₁) at 100 °C = 300.36 cm
Temperature 1 (θ₁) = 100 °C
Length (L₂) at 159 °C = 300.54 cm
Temperature 2 (θ₂) = 159 °C
Length (L₀) at 0 °C =?
Coefficient of linear expansion (α) =?
L₁ = L₀ (1 + θ₁α)
300.36 = L₀ (1 + 100α) ....(1)
L₂ = L₀ (1 + θ₂α)
300.54 = L₀ (1 + 159α) ..... (2)
Divide equation (2) by (1)
300.54 / 300.36 = L₀ (1 + 159α) / L₀ (1 + 100α)
1.0006 = (1 + 159α) / (1 + 100α)
Cross multiply
1.0006 (1 + 100α) = (1 + 159α)
1.0006 + 100.06α = 1 + 159α
Collect like terms
1.0006 – 1 = 159α – 100.06α
0.0006 = 58.94α
Divide both side by 58.94
α = 0.0006 / 58.94
α = 1.02×10¯⁵ C¯¹
Substitute the value of α into anything of the equation to obtain L₀. Here we shall use equation (2).
300.54 = L₀ (1 + 159α)
α = 1.02×10¯⁵ C¯¹
300.54 = L₀ (1 + 159 ×1.02×10¯⁵)
300.54 = L₀ (1 + 0.0016218)
300.54 = L₀ (1.0016218)
Divide both side by 1.0016
L₀ = 300.54 / 1.0016
L₀ = 300.05 cm
Summary:
The length at 0 °C is 300.05 cm
Coefficient of linear expansion of iron is 1.02×10¯⁵ C¯¹
can anyone help me with this last question?
Answer:
v = 39.6 m/s (first answer option)
Explanation:
Use conservation of mechanical energy.
The starting is completely potential energy and the final is all kinetic energy:
[tex]m*g*h=\frac{1}{2}*m*v^2\\g * h=\frac{1}{2} v^2\\9.8*80=\frac{1}{2} v^2\\v^2=1568\\v\approx 39.6\,\,m/s[/tex]
which agrees with the first answer shown.
A person wants to redesign a large room in a house to have less echoing of sound and more sunlight. Which design solution will best match the persons needs?
(A.) Hang curtains over the windows that will transmit sound waves and absorb light waves.
(B.) add pillows to the furniture that will reflect sound waves and refract light waves.
(C.) Place a thick white carpet on the floor that will absorb sound waves and reflect light waves.
(D.) Add a large mirror on the wall that will refract sound waves and reflect light waves.
Answer:
(A.) Hang curtains over the windows that will transmit sound waves and absorb light waves
Two students are playing catch with a 0.20 kg baseball. The first student throws the ball at 25 m/s. How much work is done by the second student in stopping the ball?
Answer:
W = 62.5 J
Explanation:
Given that,
Mass of a baseball, m = 0.2 kg
Initial speed of first student, u = 25 m/s
Finally, the ball stops, v = 0
We need to find the work done by the second student in stopping the ball. We know that, work done is equal to the change in kinetic energy. It can be given by :
[tex]W=\dfrac{1}{2}m(v^2-u^2)\\\\W=-\dfrac{1}{2}mu^2\\\\W=-\dfrac{1}{2}\times 0.2\times(25)^2\\\\W=-62.5\ J[/tex]
So, the required work done is 62.5 J.
These types of electromagnetic waves are listed in order of decreasing
frequency: gamma rays, visible light, infrared, and radio. Which type has the
greatest energy?
A. Radio
B. Infrared
C. Visible light
D. Gamma rays
A flashlight is shone on a mirror. As you move the flashlight to increase the angle of incidence of the light on the mirror, the angle of the reflection also changes. How does the angle of reflection change?
Answer:
the angle of reflection also increases
Explanation:
this is because the law of reflection states that the angle of incidence equals to the angle of reflection, thus, if the angle of incidence increases, angle of reflection should also increase, basically , think as if the angle of incidence is the same thing as the angle of reflection
hope this helps, if not please report it someone else can try it
Please help with this question!!!!
A car is coasting backwards downhill at a speed of 3.0 m/s when
the driver gets the engine started. After 2.5 sec, the car is
moving
uphill at 4.5 m/s. Assuming that uphill is the positive
direction, what is the car's average acceleration?
If a car is coasting backward downhill at a speed of 3. 0 meters / s when the driver gets the engine started. After 2.5 sec, the car is moving uphill at 4.5 meters / second . Assuming that uphill is the positive direction the average acceleration of the car would be 3.0 meters / second².
What is acceleration?The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter / seconds².
As given in the problem If a car is coasting backward downhill at a speed of 3. 0 meters / s when the driver gets the engine started. After 2.5 sec, the car is moving uphill at 4.5 meters / second .
The average acceleration of the car = + 4.5 - ( - 3 .0) / 2.5
= 3.0 meters / second ²
Thus , the average acceleration of the car would be 3.0 meters / second².
To learn more about acceleration here, refer to the link given below ;
brainly.com/question/2303856
#SPJ5
Jason writes a report about how the land changes due to the movement of magma in earth's mantle. which of the following is he most likely including in his report?
Answer: can I have answer choices
Explanation:
How does the initial velocity of a projectile affect its range?
N - Projectiles with larger initial velocity will go farther
0 - Projectiles with larger initial velocities will not go as far
P-Initial velocity has no effect
Plzzz yaar guys help I really need this ( crying emoji )
Answer:
I believe it is the first one
Please Help Me!!!........
Answer:
1.Siddartha Gautama
2.no single founder
3jesus christ
4.muhammad
5.abraham
4 properties of light
PLEASE HELP ASAP I'LL GIVE BRAINLY!!
Answer: b or c
Explanation: on khan academy