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
kolezko [41]
3 years ago
15

Why is it good practice for scientists to repeat trails

Physics
1 answer:
tensa zangetsu [6.8K]3 years ago
8 0
It makes the data thet they collect more reliable so if they need the data again, they have already tested it a few times so therefor they know that it is right.
You might be interested in
1. My grass is dying, and I believe it's because it is not getting enough water. Sol
trasher [3.6K]

Answer: I actually need the same answer

Explanation:

5 0
3 years ago
Franklin needs to ship a box with FedEx. In order to calculate his shipping costs, he needs to measure the mass of the package.
balandron [24]

Answer:

meter

Explanation:

please mark as brainlist answer

8 0
3 years ago
Read 2 more answers
Can someone tell me the answer to this?
Art [367]

Answer:

A

Explanation:

5 0
3 years ago
Read 2 more answers
The nervous system has two distinct branches. They are the:
Troyanec [42]

Answer:

central nervous system

peripheral nervous system

Explanation:

The nervous system has two main parts: The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.Oct 1, 2018

3 0
3 years ago
Read 2 more answers
A diver 40 m deep in 10 degrees C fresh water exhales a 1.5 cm diameter bubble.
zzz [600]

Answer:

0.0257259766982 m

Explanation:

P_2 = Atmospheric pressure = 101325 Pa

d_1 = Initial diameter = 1.5 cm

d_2 = Final diameter

\rho = Density of water = 1000 kg/m³

h = Depth = 40 m

The pressure is

P_1=P_2+\rho gh\\\Rightarrow P_1=101325+1000\times 9.81\times 40\\\Rightarrow P_1=493725\ Pa

From ideal gas law we have

\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\Rightarrow \dfrac{P_1\dfrac{4}{3\times8}\pi d_1^3}{T_1}=\dfrac{P_2\dfrac{4}{3\times8}\pi d_2^3}{T_2}\\\Rightarrow \dfrac{P_1d_1^3}{T_1}=\dfrac{P_2d_2^3}{T_2}\\\Rightarrow d_2=(\dfrac{P_1d_1^3T_2}{P_2T_1})^{\dfrac{1}{3}}\\\Rightarrow d_2=(\dfrac{493725\times 0.015^3\times (20+273.15)}{101325\times (10+273.15)})^{\dfrac{1}{3}}\\\Rightarrow d_2=0.0257259766982\ m

The diameter of the bubble is 0.0257259766982 m

8 0
3 years ago
Other questions:
  • How did Marie Curie’s research in radioactivity benefit others while harming her
    5·1 answer
  • M+2-4=3 solve and get 50 pts
    8·2 answers
  • (a) What is the sum of the following four vectors in unit-vector notation? For that sum, what are (b) the magnitude, (c) the ang
    14·1 answer
  • Can you overcharge a car battery with a charger
    14·1 answer
  • Explain why a roller coaster’s second hill cannot be taller than the first hill.
    8·2 answers
  • Monochromatic light is incident on two slits separated by 0,2 mm. An interference pattern is observed on a screen 3,7 m away. Th
    8·1 answer
  • If two connected points objects pass through the same set of three points, the shapes created by each will be identical, regardl
    11·1 answer
  • A slingshot is used to shoot a small ball upward into the air; when the pouch is released, the sling propels the ball upward. as
    9·1 answer
  • When throwing a ball upwards, the velocity is positive, and the acceleration is negative. True of False?
    15·1 answer
  • I have a scientific argument due tomorrow, and I need help ASAP.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!