Answer:
very true
Explanation:
u ok?
(their* not there)
But- WHOAH- You don't need to say "Goodbye forever" you could find new friends who love and support you. People say things, they do things, but they're still human, just like you are. Mistakes will be made. You just gotta fight the bad and look for a brighter future. Not everyone or everything is gonna be sunshine and rainbows. It's gonna be bumpy and rough, you just gotta work out the kinks of it and move on.
11) mWhich of the following sets of three units are all metric measurements
of length?*
A) inch, foot, yard
B) kilometer, centimeter, millimeter
C) kilogram, gram, centigram
D) kilometer, foot, decimeter
Answer:
Answer is B.
Explanation:
I hope it's helpful!
Can anyone help me with this? I really need the help
for each of them you need to type how they make you feel when you like need to make decision
Explanation:
How efficent is geothermal at producing eletricity?
Answer:
The conversion efficiency of geothermal power developments is generally lower than that of conventional thermal power plants. ... The highest reported conversion efficiency is approximately 21% at the Darajat vapour-dominated system, with a worldwide efficiency average of around 12%.
Cowbirds follow groups of cows, or other grazing animals, eating the insects kicked up by the walking animals. The herbivores are not bothered by the cowbirds. This relationship is an example of:
a
Competition
b
Commensalism
c
Predation
d
Mutualism
Answer:
d: mutualism
Explanation:
I'm guessing that means they're on mutual grounds so they don't mind sharing?
PLS AWSNER FAST AND CORRECT I WILL GIVE BRAINLEST
On this document, explain to me using your OWN WORDS how a baby’s carseat turned backwards (also called rear-facing carseat) is safer for babies in the event of a sudden stop in a vehicle. You must include the words force and inertia in your explanation. If you don’t know right away, try doing some research (watch some videos, read about infant carseat safety, etc.). This should show me that you understand how Newton’s 1st Law: Inertia works in a very real-life situation
Answer:
When a car stops suddenly, the inertia the keeps you moving forward will finally stop and give you whiplash, which could seriously injure or even kill a baby. With the seat turned back, the force will be decreased dramatically, and prevent any fatal harm.
calculate the heat of television if:
light-119J
Sound-1J
electricity-200J
heat-?
quickly pls
Answer:
002 bc eause iy is
a school bus has stopped to allow children to get off the bus which graph shows the motion of the bus?
Answer: what is it in
Explanation:
If a car has traveled 24 km in 2 hours, what is its average speed?
Answer:
12km per hour
Explanation:
The formula is distance/time.
24km/2 hours = 12km/1 hour
Explanation:
average speed = distance / time
= 24km/ 2 hr
= 12 km/ hr
Hope this will be helpful to you .
Which type of energy transfer is responsible for the movement of magma in Earth's interior? A)conduction B)convection C)radiation D)melting
Answer:
B. Convection.
Explanation:
Convection is an energy transfer process which typically involves the transfer of heat as a result of the movement of mass. Convection is generally considered to be a more effective and efficient means of heat transport in the Earth when compared to conduction. The movement of tectonic plates is caused by the convection current because the heat gains pressure underneath the crust.
Hence, the type of energy transfer which is responsible for the movement of magma in Earth's interior is convection.
Additionally, subduction zone is a zone which represents the collision between the two (2) tectonic plates of planet earth. Subduction zone occurs in countries such as Japan, Canada, Indonesia, Russia, Alaska, and around the Pacific Ocean.
Generally, subduction zones are responsible for high intensity earthquakes, volcanoes and tsunamis around the world.
When a warm object is heated up, the thermal radiation it emits changes. Give two ways in which the thermal radiation changes
Answer:
*The increase in thermal energy the maximum emission of radiation changes according to Wien's law
*The increase in thermal energy he intensity of the energy increases significantly, proportional to the fourth power of the temperature
Explanation:
When bodies heat up, the vibrations of their molecules and atoms increase, due to the energy, therefore the internal energy (Temperature) of the body also increases.
The increase in thermal energy relaxes in an increase in body temperature, when this happens the maximum emission of radiation changes according to Wien's law that gives a shift towards the visible as the temperature increases.
Furthermore, the intensity of the energy increases significantly, in a curve described by the Planck expression.
These increases are proportional to the fourth power of the temperature
P = σ A e T⁴
What is the unit of measure for the rate at which electricity flows?
That's the Ampere.
1 Ampere = 1 Coulomb of charge per second.
Calculate the force applied (in newtons) if a pressure of 7Pa is acting on an area of 21m?.
Answer:
147N
Explanation:
pressure = 7pa
area= 21m
force=?
now,
p = f/a
7 = f/21
f = 21×7
therefore, f = 147N.
A 50.0 kg child is riding in a 120.0 kg bumper car at an amusement park. The child drives the bumper car at 4.5 m/s head-on into the wall of the ride and rebounds at the speed. What is the magnitude of the change in momentum of the child in the bumper car?
Answer:
Explanation:
Total mass of child and car = 50 + 120 = 170 kg .
initial velocity u = 4.5 m/s
initial momentum = mass x velocity = 170 x 4.5 = 765 kg m/s
final velocity = - 4.5 m/s [ - ve is due to reversal of direction ]
final momentum = - 765 kg m/s
change in momentum = final momentum - initial momentum
= - 765 - ( 765 )
= - 1530 kg m/s .
Momentum of a body is the product of mass and the velocity of the body.
The magnitude of the change in the momentum of the child in the bumper car is 1530 kg-m/s.
What is change in momentum?The change in momentum of a object is the difference of the final momentum to the initial momentum.
Given information-
The mass of the child is 50 kg.
The mass of the bumper car is 120 kg.
The initial velocity of the bumper car is 4.5 m/s.
Momentum of a body is the product of mass and the velocity of the body. The initial momentum of the child in the bumper car is,
[tex]p_i=(m_c+m_b)u[/tex]
Here, [tex]m_c[/tex] is the mass of child and [tex]m_b[/tex] is the mass of the bumper car. Also [tex]u[/tex] is the initial velocity,
[tex]p_i=(50+120)\times4.5\\p_i=765[/tex]
Thus the initial momentum of the child in the bumper car is 765 kg-m/s.
When the bumper car head-on into the wall of the ride then it rebounds at the speed. Thus the final momentum will be opposite in the direction. Thus final momentum is,
[tex]p_f=-p_i\\p_f=-765[/tex]
As the change in momentum of bumper car is the difference of the its final momentum to the initial momentum. thus,
[tex]\Delta p=pf-pi\\\Delta p=-765-765\\\Delta p=-1530[/tex]
Hence the magnitude of the change in the momentum of the child in the bumper car is 1530 kg-m/s.
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A bowling ball with a mass of 9 kg is moving at a speed of 4 m/s. What is its
kinetic energy?
O A. 144 J
O B. 72J
O C. 18J
O D. 36 J
Help please!!
Waves propagate along a stretched string at a speed of 8.0 m/s. The end of the string vibrates up and down once every 1.5 s. What is the wavelength of the waves traveling along the string?
Answer:
So we have waves F= 1/t So F= 1/1.5= 0.66V= wavelength × F 8.0m/s= x × 0.66x=12.2The wavelength of the waves traveling along the string is 12 meters.
What is a Wavelength?
The distance between adjacent successive crests or troughs of a wave is termed as its wavelength. Wavelength is calculated in the wave's direction.Given:
Waves propagate along the stretched string at speed = 8.0 m/s
The end of the string vibrates up and down once every 1.5 s.
∴ Time = 1.5 s
We have to find the wavelength of the waves.
We know,
⇒ Time = 1/frequency
⇒ 1/frequency = 1.5
Now
⇒ speed = frequency × wavelength
⇒ wavelength = speed / frequency
⇒ wavelength = 8 × 1.5
⇒ wavelength = 12 m
Therefore, the wavelength of the waves traveling along the string with given speed is 12 m.
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Athlete mesert defar runs at 10m/s. how long will it take her to go 1 minute
Answer:
600 metres
Explanation:
1 minute = 60 seconds
1 second = 10 metres
60 seconds = 60 x 10 = 600
Athlete Mesert Defar runs 600 m in 1 minute. The speed of an object is equal to the distance traveled divided by time elapsed.
What is the relationship between Speed and Distance?The speed of an object is equal to the distance traveled divided by time elapsed.
[tex]s = \dfrac dt \rm \ \ \ or[/tex]
[tex]d = s \times t[/tex]
Where,
[tex]d[/tex] - distance
[tex]t[/tex] - times = 1 minute = 60 sec
[tex]s[/tex] - speed = 10 m /s
Put the values in the formula,
[tex]d = 10 \times 60 \\\\ d = 600 \rm \ m[/tex]
Therefore, Athlete Mesert Defar runs 600 m in 1 minute.
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Abdul works at the planetarium where he is responsible for creating a show on stars. His show is entitled "A Star is Bom," and it will explain the
forces that create a star.
Abdul is creating a timeline of a star's life including its beginning, middle, and end. Abdul found a picture to include of the region around a star
before its formation begins. What does it look like?
Answer:
dust cloud
Explanation:
Stars are formed from the accumulation of the dust as well gases in the solar system. The dust and the gases collapses due to the the gravity forces and the stars are formed.
They are formed within the clouds of the dust and gases and are scattered in the galaxies. The stars are formed in a million of years from the dust clouds.
In the context, Abdul have a picture of a dust cloud which looks smoky and dusty which is the initial stage of the stars formation due to the gravity. It is the region of the star that looks like a cloud of dust before the formation of the star.
Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom, the molecule is nonpolar.
Please select the best answer from the choices provided
T
F
Answer:
false
Explanation:
this makes the molecule very polar
A man is attempting to push a chair across the floor exerting a force of 50 N .When will the chair exert a force of 50 N on the man?
Answer:
ALWAYS ( in all cases and at all times)
Explanation:
From Newton's 3rd Law of motion which states that every action that occurs (force) there will be equal as well as opposite reaction. Therefore as the man is pushing the chair exerting 50N force, the chair also is is exerting equal force as well as opposite force on him as he is pushing it
A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration? 0-13 m/s2 0-6 m/s2 0.6 m/s2 O 13 m/s2
Answer:
6m/s²
Explanation:
Given parameters:
Initial velocity = 35m/s
Final velocity = 65m/s
Time taken = 5s
Unknown:
Acceleration = ?
Solution:
Acceleration is the rate of change of velocity with time taken;
Acceleration = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]
So;
Acceleration = [tex]\frac{65 - 35}{5}[/tex] = 6m/s²
The strength of an electrical field decreases as you move farther from the source.
True or False
a truck starts from rest and accelerates for 25 seconds to reach a velocity of 60m/s . calculate the rate of acceleration for the truck
Answer:
2.4m/s²
Explanation:
Given parameters:
Initial velocity = 0m/s
Time 25s
Final velocity = 60m/s
Unknown:
Acceleration = ?
Solution:
Acceleration is the rate of change of displacement
Acceleration = [tex]\frac{Final velocity - Initial velocity}{time}[/tex]
Acceleration = [tex]\frac{60 - 0}{25}[/tex] = 2.4m/s³
the gravitational force between the sun and earth is larger than sun and the moon. what do you think the reason for this is?
Answer: The greater an object's mass, the more gravitational force it exerts.
Explanation: So, to begin answering your question, Earth has a greater gravitational pull than the moon simply because the Earth is more massive. Sorry if I get this wrong. I am in 5th grade! ♥
The gravitational attraction between the Sun and Earth is stronger than the attraction between the Sun and the Moon, principally because of the Sun's greater mass and greater distance from Earth.
An object's mass affects how much gravitational pull it exerts. Both the Earth and the Moon are much less massive than the Sun. Approximately 330,000 times more massive than the Earth, and roughly 27 million times more massive than the Moon, is the Sun. Because of the Sun's greater mass, its gravitational pull is thus much stronger.
The strength of the gravitational force between two objects is greatly influenced by their distance from one another. The Sun and Earth are separated from one another by a far smaller distance than the Sun and Moon. The Sun is located roughly 150 million kilometers from Earth, while the Moon is located roughly 384,400 kilometers from the Sun on average. The inverse square law asserts that the gravitational force decreases with increasing distance, and that it is only one-fourth as strong when two objects are twice as far apart.
Hence, the gravitational force between the sun and earth is larger than the sun and the moon due the mass of the sun and earth is greater than the moon and sun. The distance between the sun and the earth is comparatively smaller than the distance between the sun and the moon.
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4. Can an object's displacement be negative? What does the sign indicate about the
displacement?
Answer:
1. Displacement can be positive OR negative. The sign implies the direction of the displacement. 2. In one dimension the direction is indicated by the sign: negative if to the left and positive if to the right.
Explanation:
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Which word identifies this part of a eukaryotic cell?
A. vesicles
B. chromatin
C. cytoplasm
D. nucleolus
Answer:
c
Explanation:
Answer:
my answer has to be more than 20 characters long
Explanation:
C.cytoplasm
phosphorus-32 undergoes beta decay. which particle correctly completes the equation to show that the numbers of nucleons on the two sides of the equation are equal?
Answer:A
Explanation:
A P E X
Explain how a bathroom scale is like a biofeedback machine.
Answer:
Explanation:
Need help ASAP please and thank you
Answer:
253
Explanation:
He stands at 50 so you keep counting by 50 until you get it to add three.
Unequal sharing of electrons occurs when one atom’s protons have a greater pull on the shared electrons.
Please select the best answer from the choices provided
T
F
Answer:
this is the answer
. false
a uniform beam 6.0 metre long and weighing 4kg rests on support at p and q placed left and right 1.0 metres from each end of the beam weights of mass 10 kg and 8kg are placed near p and q respectively one each end of the beam.calculate the reaction at p and q?
Answer:
Explanation:
I need the answer me too
Answer:
p and q are 4.0 m apart
moments around q
4 p = (10 * 5) + (4 * 2) - (8 * 1)
p = 12.5
Rp = 12.5 g
moments around p
4 q = (8 * 5) * (4 * 2) - (10 * 1)
q = 9.5
Rq = 9.5 g
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Explanation: