Answer: mirror neurons are the reason people usually reflect the behavior of those around them and have been linked to the ability to empathize. People are attracted to happy people because it seems to boost our mood.
Explanation:
Answer:
Some psychologists think that you can trick your brain into feeling happy by acting happy. Acting happy might actually make one happy by mirror neurons. This is the reason people usually reflect the behavior of those around them and have been linked to the ability to empathize. People are attracted to happy people because it seems to boost our mood. The three components of emotion are cognitive, physiological, and behavioral. There is actually some scientific evidence to suggest that smiling, even when you are not feeling happy, can make you happy. This idea is called the facial feedback hypothesis. Happiness, and smiling, can also be contagious and make others around them want to smile. People often mimic the facial expressions of others.
Explanation:
100% on Edge 2023!! You're welcome :) :) :) :)
A boat travels 90 m in 10 seconds, what is its speed?
90 m/s
9 mi/hr
9 m/s
900 m/s
Answer:
it is 9m/s , hope it helps
what are the laws of motion
A 10 kg dog runs across the ground and jumps onto an ice-covered pond at 5 m/s. If the force of friction acting on the dog is 8 N, how far will the dog slide before coming to rest?
Answer:
15.625m
Explanation:
Using the equation of motion
v² = u²+2as
u and v are the initial and final velocities
a is the acceleration
s is the distance
Get the acceleration
According to Newton's second law;
F = ma
8 = 10a
a = 8/10
a = 0.8m/s²
We are also given
v = 5m/s
u = 0m/s
Substitute into the formula above
v² = u²+2as
5² = 0²+2(0.8)s
25 = 1.6s
s = 25/1.6
s = 15.625m
Hence the dog will cover a distance of 15.625m before coming to rest
simple machines are in a mousetrap
Answer:
A mousetrap makes use of a simple machine called a lever.
Explanation:
In a second-class lever the effort force is at the other end, with the load in the middle. In a third-class lever, the load is at the end and the effort force is between the fulcrum and the load. When you set the mousetrap, you are using a second-class lever. Sorry if I get this wrong. I am in 5th grade! ♥
If two negative charges of -2 C and -2 C are put 32,692 m apart from each other how much force will push them apart?
Answer:
33.65 N
Explanation:
Force that will push them away is given from the equation;
F = Kq1•q2/r²
Where;
K is coulumbs constant = 8.99 × 10^(9) Nm²/C²
We are given;
q1 = q2 = -2 C
r = 32692 m
Thus;
F = 8.99 × 10^(9) × (-2) × (-2)/32692²
F ≈ 33.65 N
What is the main purpose of catabolism? to build up needed molecules in the body to produce energy for use by the body to remove built-up waste in the body.
Answer:
to produce energy for use by the body.
Explanation:
Catabolism can be defined as a metabolic process which typically involves the breaking down of complex molecules (inorganic and organic) into smaller and simpler molecules. This metabolic process (catabolism) is always accompanied with the release of energy in the form of adenosine triphosphate (ADP).
Some examples of the complex molecules broken down through catabolism are proteins, nucleic acid, polysaccharides, and lipids; which are broken into the following smaller molecules, amino acids, nucleotides, monosaccharides, and fatty acids respectively.
Hence, the main purpose of catabolism in living organisms such as humans, animals and plants is to produce energy for use by the body.
Answer:
to produce energy for use by the body
Explanation:
5. In an electric bell, electromagnet attracts________
towards itself.
Ans: It attracts iron armature
Hari drag a load of 60 kg along a distance of 12 metre what amount of work does he do also mention the type of work
Answer:
W = 7056 J
Explanation:
Given that,
Mass of a load, m = 60 kg
Distance moved, d = 12 m
We need to find the amount of work. The work done by an object is given by :
W = Fd
So,
W = mg×d
W = 60 kg × 9.8 m/s²×12 m
W = 7056 J
So, the amount of work done is 7056 J.
Where is most of Earth’s freshwater found?
in the ground
near the poles
in lakes and streams
in the air as water vapor
1.Particles are spaced the farthest apart in _____ and are the closest in ______. Select the answer that best completes the sentence.
liquids; solids
gases; liquids
solids; gases
gases; solids
Answer:
gases; solids.
Explanation:
gases take up the most volume, meaning the particles are more spread apart (disorder, entropy, etc. if you are familiar with those). solids have the particles closer together, opposite of gases.
Particles are spaced the farthest apart in gases and are the closest in solids.
Gases consist of very large numbers of tiny spherical particles that are far apart from one another compared to their size. Gas particles are in constant rapid motion in random directions.
The particles in solids are arranged in a regular way. The particles in solids move only by vibrating about a fixed position. This gives solids a fixed shape and means that they cannot flow like liquids. The hotter a solid gets, the faster its particles vibrate.
What are particles ?"A particle is a small piece of anything. Particle can also refer to a subatomic particle with mass and structure, but takes up hardly any space at all. Particles are tiny."
Know more about particles here
https://brainly.com/question/2288334
#SPJ2
help plsss !!!!!!!7777$$
Answer:
1.Proton,Nuetron,Electron
2.Electromagnetic force
3.J.J Thompson, Electron
4.b Nucleus
5.c Proton and Neutron
6. Electron
Explanation:
Just finished taking Physical science. Good Luck!
A crane lifts an air conditioner to the top of a building. If the building is 12 m high, and the air conditioner has a mass of 200 kg, how much work did the crane do to lift it? (Hint: the force the crane exerts is equal to the weight of the air conditioner)
Work needed = 23,520 J
Further explanationGiven
height = 12 m
mass = 200 kg
Required
work needed by the crane
Solution
Work is the transfer of energy caused by the force acting on a moving object
Work is the product of force with the displacement of objects.
Can be formulated
W = F x d
W = Work, J, Nm
F = Force, N
d = distance, m
F = m x g
Input the value :
W = mgd
W = 200 kg x 9.8 m/s²x12 m
W = 23520 J
What are sum fossil fuels?
what is a fossil fuels and what is a example
Answer:
Coal, crude oil, and natural gas are all considered fossil fuels all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago.
Explanation:
Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago. A fossil fuel is a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
A box weighing 2.4 x 10^2 Newton's is lifted at a constant speed to a shelf 1.2 meters high in 4.0 seconds. What power is required to lift the box
Answer:
72Watts
Explanation:
Power = Force * distance/Time
Given the following
Force = 2.4 x 10^2 = 240N
distance = 1.2m
Time = 4.0secs
Substitute
Power = 240*1.2/4
Power = 60 * 1.2
Power = 72watts
Hence the power required to lift the box is 72Watts
How are magnets used in modern technology?
How far must a spring with a spring constant of 64N/m be stretched to
store 0.32J of potential energy?
Answer:
0.1m
Explanation:
k = 64N/m
Ep = 0.32J
x = ?
Ep = 1/2 * kx²
make x the subject of the formula
x² = 2Ep/k
x = √(2Ep/k)
x = √(0.64/64)
x = √0.01
x = 0.1m
Unbeknownst to the students, every time the school floors are waxed, Mr. Tracy, the principal, likes to slide down the Hallway in his socks. Mr. Tracy weighs 85 kg and the coefficient of sliding friction between his socks and the floor is 0.120. What is the force of friction that opposes Mr. Tracy's motion down the hall?
Answer:
f = 99.96 N
Explanation:
Weight of Mr. Tracy, W = 85 kg
The coefficient of sliding friction between his socks and the floor is 0.12.
We need to find the force of friction that opposes Mr. Tracy's motion down the hall.
The force of friction is given by :
[tex]f=\mu mg\\\\f=0.12\times 85\times 9.8\\\\f=99.96\ N[/tex]
So, the required force of friction is 99.96 N.
a red shirt appears red because?
a. the shirt reflects red light
b. the shirt absorbs red light
c. the shirt emits green and blue light
d. the shirt reflects magenta and blue light
Red shirt appears red because:
a. The shirt reflects red light
A red shirt appears red because the shirt reflects red light.
Thus, An important topic for astronomers is "red shift." The phrase can be taken literally; when the light's wavelength is extended, the light is perceived as having "shifted" toward the red portion of the spectrum.
When a source of sound moves in relation to an observer, sound waves experience a similar phenomenon.
The frequency of sound waves varies if the source of the sound and the observer are moving relative to one another, according to Austrian mathematician Christian Andreas Doppler, who made this discovery.
The observer hears a frequency that is higher when the two are moving closer together and lower when they are moving farther apart and red shift.
Thus, A red shirt appears red because the shirt reflects red light.
Learn more about Red shift, refer to the link:
https://brainly.com/question/30847331
#SPJ6
A beaker containing ice and water is placed on a warm hotplate. What type of change would you expect
the ice to undergo
Answer:
Solid to liquid
Explanation:
Ice cubes are solid, adding heat to the beaker will melt the ice cubes to water.
Physicists often use a different unit of energy, the electron volt, when dealing with energies at the atomic level. One electron volt, abbreviated eV, is defined as the amount of kinetic energy gained by an electron upon accelerating through a 1.0 V potential difference.
a) what is 1.0 electron volt in joules?
b) what is the speed of a proton with 5000 eV of kinetic energy?
Answer:
a) E = 1.06 10⁻¹⁹ J, b) v = 9.78 10⁵ m / s
Explanation:
The physical magnitudes can be given in several units, but in general all must be reduced to the same system in a given exercise, the most used system is the international (SI)
1 eV =q V= 1.6 10⁻¹⁹ J
let's reduce the quantities requested
a) E = 1.0 eV to Joule
E = 1.0 eV (1.6 10⁻¹⁹ J / 1 eV)
E = 1.06 10⁻¹⁹ J
b) the kinetic energy is given by
K = ½ m v²
v = [tex]\sqrt{\frac{2K}{m} }[/tex]
the mass of the proton is
m = 1,673 10⁻²⁷ kg
let's reduce the energy to the SI system
E = 5000 ev (1.6 10-19 J / 1 eV) = 8000 10⁻¹⁹ J
let's calculate
v = [tex]\sqrt{ \frac{2 \ 8000 \ 10^{-19}}{1.673 \ 10^{-27} } }[/tex]
v = [tex]\sqrt{ 95.637 \ 10^{10} }[/tex]
v = 9.78 10⁵ m / s
Tor F: When you exert a force on a baseball, the equal and opposite force on the
ball balances the original force; therefore, the ball will not accelerate in any
direction.
Think about a situation at school where you or someone you know
has demonstrated grit. Describe the situation. Pls help me
Answer:
to have courage and show the strength of your character. ... A person with true grit has passion and perseverance. Goals are set and followed through.
Explanation:
for example: i had the passion and the courage to finish my school work and chores for i can go out with my friends and to get out of the house for a bit and have fun so i had the courage to finish chores from the house and do some schoolwork for i can finish ad hang out with some friends. so i had the strength to finish everything because i didn't want to be doing school work and chores any more so i had the passion to finish up quickly
In a sonometer by what change in linear density of wire its velocity becomes double? Keeping tension of wire constant
Answer:
Explanation:
In a sonometer , expression for speed of wave produced can be given as follows .
v = [tex]\sqrt{\frac{T}{m} }[/tex]
v is velocity , T is tension in wire , m is density per unit length .
Here v is inversely proportional to square root of m . So if m becomes m / 4
velocity changes as follows .
velocity = [tex]\sqrt{\frac{T}{\frac{m}{4} } }[/tex]
= [tex]\sqrt{\frac{4T}{m} }[/tex]
= 2v
velocity becomes two times . Hence to make velocity two times , mass per unit length has to be changed to one fourth value , keeping tension constant .
If you have observed something about the world and want to
investigate it further, what are you seeking to do?
a Do background research
b Construct a hypothesis
C Ask a question
d Report the results
Answer: a
Explanation: :)
What are the important points to remember while constructing an electric
circuit?
Explanation:
There are four fundamental elements of an electrical circuit, irrespective of where or even how positive or negative it is: a power source, a resistor, an electric generator or unit, and at most one regulator or switch.
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP I WILL GIVE BRAINLIST
The specific heat capacity of the liquid:
The latent heat of fusion
The specific heat capacity of the solid
The specific heat capacity of the vapor
The latent heat of vaporization
Answer:
For liquid at room temperature and pressure, the value of specific heat capacity (Cp) is approximately 4.2 J/g°C.
Explanation: This implies that it takes 4.2 joules of energy to raise 1 gram of water by 1 degree Celsius. This value for Cp is actually quite large. This (1 cal/g.
Why is a final score of 21-3 more likely to occur in a football
game than a score of 19-5?
Is this acceleration away, acceleration back , constant speed back, constant speed away, constant speed (or velocity), or constant negative acceleration (decreasing speed or velocity ) at a constant rate?
Answer:
ya daddy is my zaddy
Explanation:
Need help ASAP
Will mark BRAINLIST and thanks only for correct answers
1.What is the correct way a cell phone call goes out?
-The phone call goes out, transmits through microwaves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call.
-The phone call goes out, transmits through radio waves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call.
-The phone call goes out, transmits through microwaves, then moves to the tower. Then the signals go to the nearest hub to the receiver of the call.
2.Which property of AM frequencies allow them to travel over long distances?
-high amplitude
-high energy
-constant velocity
-long wavelength
3.what types of waves do cell phones use?
-radio waves
-gamma rays
-microwaves
Answer:
1. The phone call goes out, transmits through radio waves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call.
2. long wavelength
3. radio waves
Explanation:
1. A cell phone call is works basically as a two-way radio, consisting of a radio transmitter and a radio receiver. When you dial a call to a friend on your cell phone, your phone converts your voice into an electrical signal, which is then transmitted through radio waves. The radio waves then moves to the central hub. Then the signals go to the nearest tower. The network of cell towers then relays the radio wave to your friend’s cell phone, which converts it to an electrical signal and then back to sound again.
2. AM means amplitude modulation. In AM frequencies, sound signals are modulated by changing the amplitude or maximum height of radio waves. AM frequencies use longer wavelength radio waves than FM frequencies. Because of their longer wavelengths, AM waves reflect off a layer of the upper atmosphere called the ionosphere, and thus travel over longer distances than FM waves.
3. Cell phones use radio waves to communicate.
Which form of electromagnetic radiation with a relatively high amount of energy is used to sanitize lab goggles?
Answer:
Gamma radiation.
Explanation:
Electromagnetic waves are waves produced with respect to the interaction of electric field and magnetic field. They can be arranged with respect to their increasing or decreasing wavelength to form a pattern called electromagnetic spectrum.
Gamma radiation can be used for sterilization purpose due to the fact that it has a relatively high amount of energy, and do not produce any characteristic radiation.