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
RideAnS [48]
3 years ago
9

What is measurements?​

Physics
2 answers:
vitfil [10]3 years ago
5 0

Answer:

the process of comparison of an unknown quality with a know standard quantity is called measurement

Sliva [168]3 years ago
3 0

Answer:

the action of measuring something.

Measurement is a comparison of an unknown quantity with a known fixed quantity of the same kind. The value obtained on measuring a quantity is called its magnitude. Magnitude of a quantity is expressed as numbers in its units.

You might be interested in
A 0.05kg dart is thrown at and sticks into a 0.4 kg block hanging on a string. After the collision the block and dart swing in a
zloy xaker [14]

Answer:

v = 1.4  m /s

Explanation:

We shall apply law of conservation of mechanical energy

The kinetic energy of dart and block   is converted into potential energy of both dart and block .

1 /2 (m+M) v² = ( m +M) gH

.5  x v² =  9.8 x .1

=  v² = 1.96

v = 1.4

v = 1.4  m /s

6 0
3 years ago
a rocket, initially at rest, steadily gains speed at a rate of 13.0m/s^2 for 6.40 during take-off. How far did the rocket travel
Aliun [14]

Explanation:

sbsbbsbshdi she sgebsbwhwjge hsshhdhsshshsuus she's used ydhdyuyddhdhdy hehehe due susshsuhdhdhd ffujfufudhdndndjd d

3 0
3 years ago
The device used to measure a masses of a body is kilogram . true or false​
olga nikolaevna [1]

Answer: false

Explanation:

While kilograms are the unit used to measure body mass, the device used is a scale.

Hope it helps :)

6 0
3 years ago
How do similar (S-S or N-N) magnetic poles interact?
Sladkaya [172]
The repel each other.
7 0
3 years ago
Convert 15 joule into erg.​
GuDViN [60]

Answer:

<h2><u>Joule</u><u>:</u></h2>

1 Joule of work is said to be done when a force of 1 Newton is applied to move/displace a body by 1 metre.

1 Joule= 1 Newton × 1 metre

1 Newton is the amount of force required to accelerate body of mass 1 kg by 1m/s²

So units of N is kgm/s²

So,

1 Joule

=1kgm/s² × m

=1kgm²/s²

<h2><u>Erg</u><u>:</u></h2>

1 erg is the amount of work done by a force of 1 dyne exerted for a distance of one centimetre.

1 Erg =1 Dyne × 1 cm

1 dyne is the force required to cause a mass of 1 gram to accelerate at a rate of 1cm/s².

1 Erg=1 gmcm/s² × cm

1 Erg=1 gmcm/s² × cm=1gmcm²/s²

this is what you need to convert 1gmcm²/s² to 1kgm²/s²

<h3><u>what you need to know for conversion</u></h3>

[1gm=0.001kg

1cm²

=1cm ×1cm

=0.01 m × 0.01 m

=0.0001m²

second remains constant

]

So,

1gmcm²/s²

=0.001kg×0.0001m²/s²

=0.001kg×0.0001m²/s² =0.0000001kgm²/s²

Hence,

<h3><u>1 Erg</u><u>=</u><u>0.0000001</u><u> </u><u>Joule</u></h3><h3><u>1</u><u> </u><u>Joule</u><u>=</u><u>1</u><u>0</u><u>,</u><u>0</u><u>0</u><u>0</u><u>,</u><u>0</u><u>0</u><u>0</u><u> </u><u>Erg</u></h3>

<h2>⇒15 J=15×10000000 Erg</h2><h2> =150000000 Erg</h2><h2> =1.5×10⁶ Erg</h2>
3 0
3 years ago
Read 2 more answers
Other questions:
  • For 10 minutes, the wolf blew on the brick house with 5,000 N of force. How much work did he do?
    12·1 answer
  • 13 points and brainlyest if possible. Thanks.
    7·2 answers
  • According to Newton’s second law of motion, force equals mass times acceleration (F = ma). Given that a car has a mass of 3,000
    9·1 answer
  • Assume a nation's nominal GDP is $5 trillion with an inflation rate of 5%. find its real GDP. PLEASE HELPPPPPPPPPPPPPPPPPPPPP
    10·1 answer
  • The force of attraction between a -165.0 uC and +115.0 C charge is 6.00 N. What is the separation between these two charges in m
    9·1 answer
  • Need help with 4 &amp;5 please help
    10·1 answer
  • A horizontal, mass spring system undergoes simple harmonic motion. which of the following statements is correct reguarding the m
    7·1 answer
  • As a result of mitosis, the cels of a Molecular organism sure which of these properties select to correct answers. A. All cells
    13·2 answers
  • A spring is hung from the ceiling. A 0.442-kg block is then attached to the free end of the spring. When released from rest, the
    12·1 answer
  • What does the term "speed" describe?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!