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
vladimir2022 [97]
3 years ago
10

Which statements are true? Science is a collection of facts that does not evolve. We have gained all the knowledge we can from s

cience. Scientists observe natural events occurring around them. They question these observations and investigate them. All scientists follow one scientific method of investigation. If a hypothesis is not verified by the results from the scientific method, scientists may either redo the process or create a new hypothesis. Once they reach a conclusion, scientists often keep the results to themselves.
Physics
1 answer:
puteri [66]3 years ago
4 0

Answer: Scientists observe natural events occuring around them. If a hypothesis is not veriffied by the results from the scientific method, scientists may redo the process or create a new hypothesis

Explanation:

You might be interested in
The three forces acting on a hot-air balloon that is moving vertically are its weight, the force due to air resistance and the u
irinina [24]

Explanation :

The forces acting on hot- air balloon are:

Weight, (W)

Force due to air resistance, (F)

Upthrust force, (U)

Its weight W is acting in downward direction. The upthrust force U acts in upward direction. When the balloon is moving upward, the air resistance is in downward and vice versa.

In this case, the hot-air balloon descends vertically at constant speed.

so, a=0

and F=ma=0

so, W = F + U ....................(1)

when it is ascending let the weight that it is releasing is R, so

(W-R) + F = U..........(2)

solving equation (1) and (2)

(W-R)+F=W-F

R=2F            

2F is the weight of material that must be released from the balloon so that it ascends vertically at the same constant speed.

7 0
3 years ago
Read 2 more answers
A 117 kg horizontal platform is a uniform disk of radius 1.61 m and can rotate about the vertical axis through its center. A 62.
Ivenika [448]

Answer:

I_syst = 278.41477 kg.m²

Explanation:

Mass of platform; m1 = 117 kg

Radius; r = 1.61 m

Moment of inertia here is;

I1 = m1•r²/2

I1 = 117 × 1.61²/2

I1 = 151.63785 kg.m²

Mass of person; m2 = 62.5 kg

Distance of person from centre; r = 1.05 m

Moment of inertia here is;

I2 = m2•r²

I2 = 62.5 × 1.05²

I2 = 68.90625 kg.m²

Mass of dog; m3 = 28.3 kg

Distance of Dog from centre; r = 1.43 m

I3 = 28.3 × 1.43²

I3 = 57.87067 kg.m²

Thus,moment of inertia of the system;

I_syst = I1 + I2 + I3

I_syst = 151.63785 + 68.90625 + 57.87067

I_syst = 278.41477 kg.m²

8 0
3 years ago
What is average velocity?
Ber [7]
The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. According To a website on google 
6 0
3 years ago
Read 2 more answers
What is displacement ​
omeli [17]

The word displacement implies that an object has moved, or has been displaced. Displacement is defined to be the change in position of an object.

Displacement is defined as the act of moving someone or something from one position to another or the measurement of the volume replaced by something else

8 0
3 years ago
How do u get rid of a hacker? plz help my friend needs this
Alja [10]
IP address then call the cops
3 0
3 years ago
Read 2 more answers
Other questions:
  • A bullet with a mass m b = 11.9 mb=11.9 g is fired into a block of wood at velocity v b = 261 m/s. vb=261 m/s. The block is atta
    11·1 answer
  • What is a example of nuclear fusion
    9·1 answer
  • Calcalculate potential energy given to a potato sack having a mass of 2 kg as I raise it to a height of 450 CM ​
    6·1 answer
  • Entropy is the amount of heat a system releases. true or false?​
    12·2 answers
  • What can you infer from the fact that metals are good conductors of electricity?
    12·2 answers
  • Which example best matches the term refraction? (17 Points)
    8·1 answer
  • Determine the current in the 7-ohm resistor for the circuit shown in the figure. Assume that the batteries are ideal and that al
    15·1 answer
  • A student determines that a sample has a mass of 157.2 g and a volume of 20 cm^3. Which
    15·1 answer
  • A sample from a meteorite that landed on Earth has been analyzed, and the result shows that out of every 1,000 nuclei of potassi
    6·1 answer
  • the force that gravitation exerts upon a body, equal to the mass of the body times the local acceleration of gravity
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!