1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VLD [36.1K]
3 years ago
13

what is measurement? why is it important to have regular supervision of the weights and measurement in the market?​

Physics
1 answer:
saveliy_v [14]3 years ago
5 0

Answer:

The comparison of unknown quantity with known quantity is called measurement.

You might be interested in
A car is traveling 16 m/s East. If the car then speeds up at a constant acceleration, what is the direction of the car’s acceler
konstantin123 [22]
The direction is east since its constant
8 0
2 years ago
Por favor ayuda que ejercicio debo hacer para enflacar en una semana xd
Serggg [28]

Answer:

Un excelente ejercicio para perder barriga rápidamente es correr, ya que el cuerpo gasta una mayor cantidad de calorías en un corto período de tiempo, en tan sólo 30 minutos corriendo se queman unas 300 calorías.

...

Qué ejercicios realizar

Correr. ...

Clase aeróbica. ...

Saltar cuerda. ...

Bicicleta. ...

Caminar rápido. ...

Natación.

Explanation:

dame coronita por favor

8 0
3 years ago
Where is the epicenter of the hypothetical earthquake as shown in the illustration below?
Genrish500 [490]

Answer:

Point D

Explanation:

The epicenter of a hypothetical earthquake is located at the point where the earthquake begins.

(See the attached image).

Hope it helps!

5 0
3 years ago
A ball is fixed to the end of a string, which is attached to the ceiling at point P. As the drawing shows, the ball is projected
Ganezh [65]

Answer:

The ball's initial kinetic energy

The ball comes to a stop at B. At this point its initial kinetic energy is converted into potential energy

Explanation:

A ball is fixed to the end of a string, which is attached to the ceiling at point P. As the drawing shows, the ball is projected downward at A with the launch speed v0. Traveling on a circular path, the ball comes to a halt at point B. What enables the ball to reach point B, which is above point A? Ignore friction and air resistance.

From conservation of energy which states that energy can neither be created nor be destroyed, but can be transformed from one form to another.

Ki+Ui=Kf+Uf

Ki=initial kinetic energy

Ui=initial potential energy

Kf=final kinetic energy

Uf=final potential energy

we know that \frac{1}{2} mu^{2} +mgha=\frac{1}{2} mv^{2} +mghb

m=mass of the ball

ha=downward height a

hb=upward height b

u=initial velocity u

v=final velocity v, which is 0

g=acceleration due to gravity

v=0 at final velocity

1/2mu^2+mgha=0+1/2mv^2

ha=hb+Ki/mh

From the above equation, we can conclude that the ball's initial kinetic energy  is responsible for making the ball reach point B.

Point B is higher than point A from the motion gained by the ball

3 0
3 years ago
Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm hg at 35°c and has a δhvap of 32.1 kj/mol.
Novosadov [1.4K]

Answer:

389.78681 K

Explanation:

P_1 = Initial pressure = 55.1 mmHg

P_2 = Final pressure = 1 atm = 760 mmHg

T_2 = Boiling point

T_1 = Initial temperature = 35°C

\Delta H_{vap} = Heat of vaporization = 32.1 kJ/mol

From the Clausius-Claperyon equation

ln\dfrac{P_2}{P_1}=(-\dfrac{\Delta H_{vap}}{R})(\dfrac{1}{T_2}-\dfrac{1}{T_1})\\\Rightarrow \dfrac{1}{T_2}=-ln\dfrac{P_2}{P_1}\dfrac{R}{\Delta H_{vap}}+\dfrac{1}{T_1}\\\Rightarrow \dfrac{1}{T_2}=-ln\dfrac{760}{55.1}\dfrac{8.314}{32.1\times 10^{3}}+\dfrac{1}{273.15+35}\\\Rightarrow T_2=\left(-ln\left(\frac{760}{55.1}\right)\frac{8.314}{32.1\times \:10^3}+\frac{1}{273.15+35}\right)^{-1}\\\Rightarrow T_2=389.78681\ K

The normal boiling point of the substance is 389.78681 K

3 0
3 years ago
Other questions:
  • Two boys want to balance a seesaw perfectly. One boy weighs 120 pounds and is sitting four feet from the fulcrum. The other boy
    7·1 answer
  • (HELP ASAP) A large truck and a small two door car are both traveling 60 miles per hour down the highway, which has more kinetic
    13·1 answer
  • If the speed of a wave doubles while the frequency remains the same, it means
    12·1 answer
  • A force of 8.0 N is along x direction, another force of 6.0 N is along +y direction. If both forces are acting on a point object
    8·1 answer
  • !!!!!PLEASE ANSWER CORRECTLY!! I DESPERATLY NEED HELP!!!!!
    6·1 answer
  • PLEASE PROVIDE AN EXPLANATION<br><br> THANK YOU!
    7·2 answers
  • A strong but negative correlation indicates that the two variables studied are not related.
    11·2 answers
  • A hop is a springing from one foot but landing on the other foot? Question 4 options: True False
    10·2 answers
  • What part of the scientific method tests the hypothesis?
    6·1 answer
  • Lora (of mass 47.4 kg) is an expert skier. She
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!