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
mamaluj [8]
3 years ago
14

How is a theory different from a hypothesis? How is a theory different from a hypothesis? 3 following 10 answers 10 Report Abuse

Are you sure you want to delete this answer? Yes No
Physics
1 answer:
Fed [463]3 years ago
4 0
A theory is an idea that is widely agreed on by scientists and can be changed when new info comes to light while a hypothesis is an educated guess sometimes based on prior knowledge.
You might be interested in
Which environmental changes occur faster?
irga5000 [103]
The answer is B. Oil Spill
6 0
3 years ago
Read 2 more answers
A 15-kN tensile load will be applied to a 50-m length of steel wire with E = 200 GPa. Determine the smallest diameter wire that
sasho [114]

Answer:

d=13.81 mm

Explanation:

Given that

P = 15 KN  ,L = 50 m

E= 200 GPa

ΔL = 25 mm

σ  = 150 MPa

Lets take d=Diameter

There are we have two criteria to find out the diameter of the wire

Case I :

According to Stress ,σ  = 150 MPa

P = σ  A

A=\dfrac{P}{\sigma}

d=\sqrt{\dfrac{4P}{\pi \sigma}}

By putting the values

d=\sqrt{\dfrac{4\times 15000}{\pi \times 150}}

d= 11.28 mm

Case II:

According to elongation ,ΔL = 25 mm

\Delta L=\dfrac{PL}{AE}

A=\dfrac{PL}{E\Delta L}

A=\dfrac{4PL}{\pi E\Delta L}

d=\sqrt{\dfrac{4\times 15000\times 50000}{\pi \times 200\times 1000\times 25}}

d=13.81 mm

Therefore the answer will be 13.81 mm .Because it satisfy both the conditions.

3 0
3 years ago
Can anyone help with this?
sleet_krkn [62]

Answer:

A. The volume of the object

Explanation:

First of all, it can only PROBABLY be A or D

But why is it only A?

  • Mass = The amount of matter in an object (nothing related here)
  • Volume = How much space is the object taking (super related here)

It's VOLUME here and not MASS here because:

  • It it would be Mass, then the object size could be anything, but the liquid wouldn't move as much higher.
  • But because it is Volume, it is taking space, which makes the liquid move
  • If the Mass would be the answer, then it would be totally not related, because mass isn't related over here, it matters about size.

<h2>Hence, A. The volume of the object </h2>

is your answer!!!!

4 0
1 year ago
Read 2 more answers
You are directed to set up an experiment in which you drop, from shoulder height, objects with similar surface areas but differe
tangare [24]

Answer: c. they will hit the ground at the same time

Explanation:

The volume of both objects is almost the same, so the force of friction will be the same in each one, so we can discard it.

Now, when yo drop an object, the acceleration of the object is always g = 9.8m/s^2 downwards, independent of the mass of the object.

So if you drop two objects with the same volume but different mass, because the acceleration is the same for both of them, they will hit the ground at the same time, this means that the density of the object has no impact in how much time the object needs to reach the floor.

So the correct option is c

3 0
3 years ago
Find the sum of the vectors:11 km N ,11km E
vladimir1956 [14]

The resultant vector is 11√2 km due north east.

<h3><u>Explanation:</u></h3>

The vector is a type of quantity which has both magnitude and direction. This quantities when expressed needs to specify both magnitude and direction.

We need to calculate the magnitude and direction separately.

Here firstly for the magnitude,

The magnitudes are both 11 km and they are at right angles to each other.

So, the resultant magnitude = √(11² +11²) km

=11√2 km

Now for the direction, one vector is due north and the other is due east.

So the resultant vector is due north east.

So the final vector is 11√2 km due North-East.

6 0
2 years ago
Other questions:
  • Three swimmers can swim equally fast relative to the water. They have a race to see who can swim across a flowing river in the l
    9·1 answer
  • How does a Geiger counter measure radiation levels?
    12·1 answer
  • In Hooke's law, what does k represent?
    11·2 answers
  • Make a general statement concerning how large bodies of water affect the climate of nearby coastal communities.
    5·1 answer
  • Why was the idea of continental drift not initially accepted by many other scientists and the general public at the time?
    6·1 answer
  • How to do this question
    6·1 answer
  • For what type of power tool is it especially important to take precautions to prevent a tool component from coming loose and fly
    11·1 answer
  • If EMS waves are transverse, what conclusion can you make concerning the distances they can travel?
    5·1 answer
  • Can anyone help me with this? <br>the question : find the value of the resistors​
    10·1 answer
  • In the diagram below, a 10-kilogram ball is fired with a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!