Answer:
Joule is the answer
Please give me brainleast
Joule is the unit of work .
What is meant by work ?
Activity that a person habitually engages in to earn a living is activity that persons looking for job engage in.
Activity in which one utilises strength or faculties to do or do anything. a particular duty, responsibility, function, or assignment that often forms a component or stage of a bigger action.
Thus, Joule is the SI unit of work (J). The work accomplished by a force of one newton creating a displacement of one metre is known as a joule.
To learn more about Joules, refer to the below link:
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PLEASE ILL GIVE YOU BRAINLIEST
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
how much time would it take for the sound of thunder to travels at a speed of 330m/seconds
13. Explain whether the following answers are reasonable or not. Check the magnitude, the units, and the
direction. You DO NOT have to solve the problems yourself.
a) A car speeds up as it enters the freeway. It accelerates at 5.4 m/s? What was the car's final speed?
ANSWER: 6.3 m/s forward
I
calculate the heat of television if:
light-119J
Sound-1J
electricity-200J
heat-?
quickly pls
Answer:
002 bc eause iy is
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%.
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:
Which object has the most thermal energy?
Answer:
B
Explanation:
The object with the most thermal energy is the choice B. This is because from the given choices, it has the most mass and highest temperature of all the bricks.
Thermal energy is the sum total of the average kinetic energy within the system.
It is mathematically expressed as:
Quantity of energy = mass x specific heat x change in temperature
We see that the quantity of the thermal energy is directly proportional to mass and temperature changes.
Answer:
B. a 4 kg brick at 25 degrees Celsius
Explanation:
did the quiz <3
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
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
4. Which problem is most likely to result from the use of nuclear power?
O A. storage of radioactive wastes
B. miners getting trapped underground
C. oil spills that pollute oceans and beaches
O D. pollutants in the groundwater after drilling
Answer:
i think it is A
Explanation
Explain how a bathroom scale is like a biofeedback machine.
Answer:
Explanation:
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!!
Natural Resources Question 5
Which statement describes an advantage of using renewable
resources?
Select one
-They make energy more affordable
-They will increase the demand for electricity
-They will be available for many years.
-They make electricity less dangerous.
Answer:
-They will be available for many years.
Explanation:
The advantage of using renewable resources is that they will be available for many years.
Renewable resources have very fast turn over time for replenishing, therefore, they are available over an extended period time.
They are not used by consumption and so they will continually be available. This is different from the non-renewable resources which are depleted as they are being used up.
Examples of renewable resources are wind, water and air
A rocket sled accelerates from 10 m/s to 40 m/s in 2 seconds. What is the average acceleration of the sled?
Answer:
15m/s²
Explanation:
Given parameters:
Initial velocity = 10m/s
Final velocity = 40m/s
Time taken = 2s
Unknown:
Average acceleration = ?
Solution:
Acceleration is the rate of change of velocity with time;
Acceleration = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]
Acceleration = [tex]\frac{40 - 10}{2}[/tex] = 15m/s²
Calculate the exerted on the heel of a boy's foot if the boy weighs 320N and he lands on one heel which has an area of 0.15m squared
Mujhe nhi pata sorry. Lekin mai bhut logo ko jaanti hoon jo iss savaal ka jawaab de sakte hai.
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.
To learn more about Gravitational Force, here:
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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
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.
Learn more about the Wavelength here: https://brainly.com/question/17774076
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A car is traveling east at a speed of 25 m/s. It then takes
5 seconds to a stop at a red light (final velocity=0 m/s).
What is the acceleration of the car?
Answer:
-5m/s²
Explanation:
Given parameters:
Initial velocity = 25m/s
Time = 5s
Final velocity = 0m/s
Unknown:
Acceleration of the car = ?
Solution
The acceleration of a body is the rate of change of the velocity of the body with time.
Acceleration = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]
So;
Acceleration = [tex]\frac{0 - 25}{5}[/tex] = -5m/s²
The car is decelerating at a rate of 5m/s²
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:
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.
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
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?
Calculate the gravitational potential energy of 3kg book sitting on shelf 4m high
Answer:
i know it i know it pick me
Explanation:
Answer:
nope loser
Explanation:
10)A car is moving from rest and attained a velocity of 80 m/s. Calculate the
acceleration of the car after 5 s?
Answer:
initial velocity (u)=0
final velocity (v)=80m/s
time(t)=5s
acceleration (a)=?
Explanation:
we have
v=u+at
80=0+a×5
5a=80
a=80/5=16m/s²
What type of energy is due to motion potential energy or kinetic energy
Answer:
Kinetic Energy
Explanation:
Potential Energy is where something is building up energy to move.
Answer:
Kinetic Energy
Explanation:
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.
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
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
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: