Which one is not physical quantity question is mistake

Which One Is Not Physical Quantity Question Is Mistake

Answers

Answer 1

Answer:

Length

Explanation:

Answer 2

Answer:

length

hope it helps you


Related Questions

Which property of a quarter is different on the International Space Station than it is on Earth?


Its mass
Its weight
Its volume
Its density

Answers

It’s Weight changes and the rest says the same

difference between the speed and velocity?​

Answers

Speed varies with Distance travelled w.r.t time

[tex]\boxed{\sf Speed=\dfrac{Distance}{Time}}[/tex]

Whereas velocity varies with displacement w.r.t time.

[tex]\boxed{\sf Velocity=\dfrac{Displacement}{Time}}[/tex]

which unit of measure is the correct SIunit to use in measuring the mass of a boulder?

o tons
o kilograms
o pounds
o ounces​

Answers

The correct answer is kilograms

Answer:

tons

Explanation:

What is the car’s average velocity (slope) between “O” and “A”? (y2-y1 / x2-x1) = slope
(1,24) (0,0)

Answers

Please find the attached photograph for your answer. Hope it helps! Please do comment

The car’s average velocity is mathematically given as

V=4m/s

What is average velocity?

Average velocity is simply the mean rate of change of position of a car over a period of different times and this can be used to attain velocity of a car that has been in different velocity states

What is the car’s average velocity?

Generally, the equation for the Velocity   is mathematically given as

V=(AI/OI)

Therefore

V=24/1

V=4m/s

In conclusion, the car’s average velocity

V=4m/s

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Define acceleration. Prove that v = u + at​

Answers

Explanation:

[tex]\text{Acceration is the rate of change of velocity per unit time.}

\text{Suppose the initial velocity is }u,\text{ and the final velocity is }v.

\text{Then the change of speed is }v-u.

\text{If such velocity change takes }t\text{ seconds, the average acceleration is }a.

\text{So we write}[/tex]

[tex]\frac{v-u}{t}=a\implies v=u+at[/tex]

Precision is how close a series of measurements are to ______

Answers

Answer:

Accuracy is how close a measured value is to an accepted value. Precision is how close measurements are to one another. To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.

(b) On what factor does the mechanical advantage of a simple machine depend? (a) N/m B. Very short answer questions, 1. What is the principle of simple machine? 2. 3. The efficiency of simple machine is 75%. What does it mean? 4. S. What is lever? In how many classes is lever classified? Write the name of a simple machine used to change the direction of force. 6.the velocity ratio of a pulley system is 4.what does it mean? 0 Reliant Science - 9​

Answers

Answer:

No.b answer

the ratio of the length of the lever arm where the force is applied divided by the length of the lever are that lifts the load.

No.1 answer

if there is no friction in a simple machine, work output and work input are found to be equal in the machine.

No.3 answer

machine that is 75% efficient means that 75% of the work input is obtained as the useful output and the remaining 25% has been lost in overcoming the friction.

No.4 Answer

A lever is a simple machine made of a rigid beam and a fulcrum. In 3 calss lever is classified.

Simple pulleys change the direction of the force used to lift an object over a distance.

ratio of distance travelled by effort to the distance travelled by load in the machine.

Hope this will help you alot

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A hydrogen atom has a diameter of about 12.7 nm, express this diameter in centimeters.

Answers

1 meter = 1e9 nm
To get meters, divide nanometers by 1e9: 9.95nm / 1x10^9 = 9.95x10^-9 meters
Answer: 9.95e-9 meters

We have to convert 12.7nm to cm

[tex]\\ \sf\longmapsto 12.7nm[/tex]

[tex]\\ \sf\longmapsto 12.7\times 10^{-9}m[/tex]

[tex]\\ \sf\longmapsto 0.127\times 10^{-7}m[/tex]

[tex]\\ \sf\longmapsto 0.00000127\times 10^{-2}[/tex]

[tex]\\ \sf\longmapsto 0.0000013cm[/tex]

A sample of oxygen gas occupies a volume of 200 mL at a pressure of 720 torr. What volume will the gas occupy at a pressure of 800 torr if temperature is held constant

Answers

We have that the gas will occupy at a pressure of 800 torr if temperature is held constant a Volume of

[tex]V_2=0.18L[/tex]

From the Question we are told that

Initial Pressure [tex]P_1=720[/tex]

final Volume  [tex]V_1=200mL[/tex]

Initial Pressure [tex]P_2=800[/tex]

final Volume  [tex]V_2=?[/tex]

Generally the equation for Boyle's law  is mathematically given as

[tex]P_1V_1= P_2V_2[/tex]

Therefore

[tex]V_2=\frac{ P_1V_1}{P_2}\\\\V_2=\frac{ 720*200}{800}\\\\V_2=180mL[/tex]

[tex]V_2=0.18L[/tex]

The gas will occupy at a pressure of 800 torr if temperature is held constant a Volume of

[tex]V_2=0.18L[/tex]

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A car starts from rest and after 10 seconds its velocity is 20 m/s. Find the acceleration and the distance travelled by it.​

Answers

Answer:

a=[tex]2ms^{-2}[/tex]   S=100m

Explanation:

a=?

vi=0m/s

vf=20m/s

t=10s

a=[tex]\frac{vf-vi}{t}[/tex]

a=[tex]\frac{20-0}{10}[/tex]

a=2m[tex]s^{-2}[/tex]

S=?

S=vit+[tex]\frac{1}{2}[/tex]a[tex]t^{2}[/tex]

S=0+[tex]\frac{1}{2}[/tex]*2*[tex](10)^{2}[/tex]

S=100m

PLS FAST WILL GIVE BRAINLIEST Describe why atoms can be neutral when they contain charged subatomic particles.

Answers

Answer:

Atoms are neutral if they have the same number of charged protons and electrons, balancing positive and negative charges. As long as the numbers of electron and protons are the same, the charges will balance.

Applying the speed of Sound
Johnny was playing baseball with his friends and they noticed a bolt of lightning They heard thunder seven seconds
How far away is the storm?
meters

Answers

Did you find the speed of sound from how far away the storm is

Answer:

2,317

Explanation:

on e

identify two ways in which friction is not useful in science​

Answers

Answer:

Friction between brakes and the wheels of a car or bicycle helps the vehicles slow down.If you do not lubricate your bike regularly with oil, the friction in the chain and axles increases.

(c) What are the factors of work? Also write their relation with work.​

Answers

Answer:

Explanation:

Appreciation for your work.Good relationships with colleagues.Good work-life balance.Good relationships with superiors.Company's financial stability.Learning and career development.Job security.Attractive fixed salary.

Good relationships with colleagues. Good work-life balance. Good relationships with superiors. Company's financial stability.

Fatima is watching her pet cat, Winter, napping in the sun. Fatima is curious about the heart rate of Winter when she is napping, so she develops this scientific question: Does a cat’s heart rate change while it is napping

Answers

We have that for the question, Does a cat’s heart rate change while it is napping?

Cats heart rate do not increase while napping.

The range of heart beat of a cat is 140 and 220 bpm

From the Question we are asked

Does a cat’s heart rate change while it is napping.

The answer is NO

Cats heart rate do not increase while napping. Cat have a normal heart beat maximum of 220 beats per minute consistently.The range of heart beat of a cat is 140 and 220 bpm

Therefore

There is something with a cat with heart rate above this number.

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Help me with this quesiton

Answers

it takes him 1.2 hrs

3. ¿Cuál es la distancia focal de un espejo CONVERo sabiendo que un objeto colocado
a 4 cm de él da una imagen virtual situata a 2 cm del espeso? ¿Cuál es el radio de
curvatura del espejo? Determina también las características de la imagen sie
objeto mide 5 cm

Answers

i dont know for real

how do i get the correct answer for 0.429m to mm

Answers

the answer for 0.429m to mm is 429

Answer:

0.429m=429 mm

Explanation:

Since there are 1,000 millimeters per meter, you need to multiply by 1,000 to convert from meters to millimeters.

help me please i dont understand

Answers

Answer:

0.58

Explanation:

Sinẞ = opposite ÷ hypotenuse

Sinẞ = 5 ÷ 8.6

Sinẞ = 0.5814

Sinẞ ≈ 0.58

Answer:    0.58

Explanation:

hope this helps

Fun Fact: Peanuts aren’t technically nuts


A baseball is thrown a distance of 20 meters. What is its
seconds to cover the distance?
speed if it takes 0.5

Answers

Answer:

I want to say 10 seconds but im not 1000% sure

Answer:

Average speed= distance traveled/ time taken.

Explanation:

You shouldn't need any formula, just use common sense. You dummy. It goes 20m 10h half a sec. DUH!!!

PLZ FAST Scientific knowledge is both long lasting and always _______.

changing
non-observable
permanent
untestable

Answers

The answer is changing

A projectile is launched vertically with an initial velocity of 50 m/s. How long would it take to reach the top of the launch?

Answers

Answer:

Explanation:

Givens

vi = 50 m/s

vf = 0

a = - 9.81

t = ?

Formula

t = (vf - vi)/a

Solution

t = (0 - 50)/-9.81

t = 5.097

Notice that a is made into a minus. It does not mean subtract. It means that the direction of the projectile and gravity must go in opposite directions. You will find that direction is a critically important consideration in physics.

Answer:

It'd take it 5.10 seconds

Explanation:

At the top of the launch, it is maximum height, h

formular derivation :

At maximum height, final velocity, v is zero

From first newtons equation:

[tex]{ \sf{v = u + gt}}[/tex]

v is the final velocity

u is the initial velocity

g is acceleration due to gravity

t is the time taken

but v is zero:

[tex]0 = u + gt \\ gt = u \\ t = \frac{u}{g} [/tex]

since it is vertical motion, u = usin(theta), where angle is 90°

[tex]{ \boxed{t = \frac{u \sin( \theta) }{g} }}[/tex]

t is the time taken to reach the top of the launch:

substitute, taking g to be 9.8 m/s²

[tex]t = \frac{50 \times \sin(90 \degree) }{9.8} = \frac{50}{9.8} \\ \\ { \boxed{ \boxed{time = 5.10 \: seconds}}}[/tex]

Which unit is used to measure the mass of a computer?

Answers

Answer:

kilogram

Explanation:

computers are measured in kilograms

How does the field of science gain knowledge and understanding?

Answers

A basic question about how science gains knowledge.

Science gains knowledge using the scientific method.

The first thing you need to understand here is the scientific method, with all the steps and a little explanation to each one.

Ask a question or find some problem to solve: (what you want to understand? In what area do you want to find new knowledge?) Perform research: (There is some existing knowledge in that topic?) Establish your hypothesis: (This is what you can conclude with the things you know, or what you expect to find) Test your hypothesis by conducting an experiment: (Perform an experiment to test your hypothesis, this is the most important part.) Make an observation: (Observe the outcome of the experiment) Analyze the results and draw a conclusion: (study what the outcome means) Present the findings: (Present what you learned to the scientific community, in this way the science gains knowledge).

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Answer:

Through the testing of hypotheses.

According to the law of conservation of energy, which statement must be
true?
A. Energy that is transformed is neither destroyed nor created.
B. Energy can change only from nuclear to chemical.
C. There is only one form of energy.
D. The total energy in a system can only increase over time.

Answers

Answer:

i hope it will help you

THANK YOU

Explanation:

thank you

will mark brainliest!

Answers

Answer:

b=t-p(m-n)/s

Explanation:

1. The atomic number of an element is the same as the number of ______ that the element has.

Answers

Answer:

Explanation:

The total number of protons in the nucleus of an atom gives us the atomic number of that atom. It is represented with the letter ‘Z.’ All the atoms of a particular element have the same number of protons, and hence the same atomic number. Atoms of different elements have different atomic numbers.

How does Bolsa describe his new client?

Answers

Answer:

loco

Explanation:

ecent communication with the inhabitants of Neptune has revealed that they have a Celsius-type temperature scale, but based on the melting point (0oN) and boiling point (100oN) of their most common substance, hydrogen. Further communications have revealed that the Neptunians know about perfect gas behavior and they find that, in the limit of zero pressure, the value of pV is 28 dm3atm at 0oN and 40 dm3atm at 100oN. What is the value of the absolute zero of temperature on their temperature scale

Answers

The absolute zero temperature is the smallest thermodynamic thermal limit, which is considered as a zero kelvin when the enthalpy, as well as the entropy of a cooled ideal gas, are of minimal value.

It is expressed by using the formula:

[tex]\mathbf{T_{abs} = T_N + k}[/tex]

where;

[tex]\mathbf{T_{abs } = absoulte \ temperature}[/tex]

[tex]\mathbf{T_N = temperature \ at \Neptune \ Scale}[/tex]

k = factor to convert temperature from absolute scale to Neptunian scale

N:B: An absolute temperature = zero (0) kelvin

From the information given, Using Ideal gas since it is used in Neptune:

PV = nRT

where;

P = pressureV = volumen = no of molesR = rate(constant)T = temperature

From the question, provided that the gas is the same and no new mass is added;

Then, we can equate the moles of gas in the given conditions as;

[tex]\mathbf{\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}....\dfrac{P_nV_n}{T_n}}[/tex]

Using:

[tex]\mathbf{\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}}[/tex]

where the value of;

P₁V₁ = 28 dm³ atm

T₁ = 0⁰ N

P₂V₂ = 40dm³ atm

T₂ =  100⁰ N

[tex]\mathbf{\dfrac{28}{(0+K)}=\dfrac{40}{(K+100)}}[/tex]

By cross multiply;

28(K+100) = 40(0+K)

28K + 2800  = 0 + 40K

40K - 28K = 2800

12 K = 2800

K = 2800/12

K = 233.33° N

Recall that:

[tex]\mathbf{T_{abs} = T_N + k}[/tex]

[tex]\mathbf{0= T_N+ 233.33 ^0 N}[/tex]

[tex]\mathbf{ T_N= - 233.33 ^0 N}[/tex]

Therefore, we can conclude that the value of the absolute zero of temperature on their temperature scale is -233.33° N

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An apple weighing 1 N falls through a distance of 1m. How much work is done
on the apple by the force of gravity?

Answers

Answer:

W = F × d

W = 1 × 1

W = 1 Joule

step by step explanation

An apple is having a force of 1 N and it travels to a distance of 1 m then the work done on the apple by the force of gravity will be equal to 1 J.

What is Work?

Work is a physics term used to describe the transfer of energy that occurs when an object changes above a distance because of an external force, at least some of which is given in the vector of the dislocation. The element of the strong acting all along the path multiplied by the length of the path can be used to calculate work if the force is constant.

Mathematically, this idea is expressed as W = fd, where W is the effort and f is the force multiplied by d, the distance. Work is completed whenever the pressure is applied at an angle with regard to displacement.

As per the given information in the question,

Force, f = 1 N

Distance, d = 1 m

Then, the work done will be,

W = fd

W = 1 × 1

W = 1 J.

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