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
satela [25.4K]
2 years ago
15

The sun rose at 6:54 this morning.is this an observation or inference?

Physics
2 answers:
Levart [38]2 years ago
8 0

Answer:

observation

Explanation:

Through an observation information is acquired. The acquiring of information must be through the five senses directly or indirectly. When a person takes an observation using eyes it is a form direct observation. When a person takes an observation using scientific instruments it is a form indirect observation.

Inference is the deduction of observations taken.

Here, the sun rose at 6:54 this morning is an observation i.e., a person saw the sun rise at 6:54. It has not been deduced that the sun rose at 6:54.

jeka57 [31]2 years ago
4 0


Observation: You saw/ observed something and you are stating that.

Inference: You are predicting something to be true. If so and so, then this will occur.

You might be interested in
Describe an experiment to show that pressure increases with the decrease in the area of surface
cluponka [151]
Answer:
press a baloon against one pin it bursts
but now arrange lot of pins parallel closely to each other if u press a baloon against them it does not burst hope this helps u
7 0
2 years ago
How much kinetic energy the truck still has
seropon [69]

Answer:

47.5kJ

Explanation:

Before climbing the cliff

E_t = E_k

E_k=\frac{1}{2} mv^2\\E_k=\frac{1}{2} 500*15^2\\\\E_k = 56250J\\

At 2.

E_t = E_k+E_p

8 0
3 years ago
At what angle should the axes of two Polaroids be placed so as to reduce the intensity of the incident unpolarized light to 1515
Talja [164]

Complete  Question

At what angle should the axes of two Polaroids be placed so as to reduce the intensity of the incident unpolarized light to 1/5.

Answer:

The  angle is  

Explanation:

From the question we are told that

   The light emerging from second Polaroid is 1/5 the  unpolarized

Generally the intensity of light emerging from the first Polaroid is mathematically represented as

             I_1 = \frac{I_o}{ 2 }

Generally from the Malus law the intensity of light emerging from the second Polaroid  is mathematically represented

      I_2  =  I_1 cos^2 (\theta )

=>   cos^2 (\theta ) =  \frac{I_2}{I_1 }

=>   cos (\theta) =  \sqrt{ \frac{I_2}{I_1} }

From the question I_2  =  \frac{I_o}{5}

     cos (\theta) =  \sqrt{ \frac{ \frac{ I_o}{5} }{\frac{I_o}{2} } }

     cos (\theta) =  \sqrt{ \frac{2}{5} }

=>    \theta =   cos ^{-1} [\sqrt{\frac{2}{5}}  ]

=>    \theta  =  50.77^o

8 0
3 years ago
How does the surface tension of water compared with the surface tension of most other liquids?
Anuta_ua [19.1K]
Surface tension is the direct measure of the cohesive forces between liquid molecules that allows them to form "film", making it more difficult to move an object through the liquid surface. Compared to other known liqiuds, the surface tension of water is much greater. 
5 0
2 years ago
an athlete is running at a constant velocity with a javelin held in his right hand.the force he is applying on thejavelin as he
mestny [16]
50 Nm
work=force*change in position
7 0
3 years ago
Other questions:
  • A fixed coil of wire with 10 turns and an area of 0.055 m2 is placed in a perpendicular magnetic field. This field oscillates in
    6·1 answer
  • Kenya has a pile of salt on the counter. She uses a pinch of it for a meal. Which of the following physical properties of the sa
    12·2 answers
  • This term ____ Location refers to using another location as a reference point, rather than using latitude and longitude.
    9·1 answer
  • Which of these statements suggests that the orbital period of Venus is shorter than that of Saturn?
    7·1 answer
  • A sled of mass 8 kg slides along the ice. It has an initial speed of 4 m/s but
    7·1 answer
  • Calculate the effective value of g, the acceleration of gravity, at 6700 m , above the Earth's surface. g
    11·1 answer
  • A 0.250 kg mass is attached to a spring with k=18.9 N/m. At the equilibrium position, it moves 2.89 m/s. What is the amplitude o
    15·1 answer
  • What effects a materials resistance
    9·1 answer
  • How to calculate the average value of the indirect measurements of KE
    6·1 answer
  • What happens to an object at rest if there is no net force<br> on the object?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!