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
Evgen [1.6K]
2 years ago
14

When devising a model, scientists can only use the information available during their lifetime. This means that the current mode

l of the atom may be changed when new experiments are performed in the future. Does this mean that the currently accepted model of the atom is useless? Explain your answer.
Physics
2 answers:
11111nata11111 [884]2 years ago
6 0

no, it not useless. we still learn Bohr's model in HS n dats almost 200 yr old! while there may be new models, previous one is good for explaining the basics. it is also useful to learn previous model n see how our understanding improves over time.


Rom4ik [11]2 years ago
6 0

The currently accepted model, when replaced by a new one, has served the purpose being the best model we have at this time. So it is far from useless. It provides a basis for the new model. Combined with all previous replaced models, they show the history and process of our understanding of the atom.


You might be interested in
Why are triangles important when making structures
Alex_Xolod [135]
So when making structures you have to have squares rectangles right and a triangle and another triangle equals a square so thats all there is to it
4 0
2 years ago
Thermodynamics
Marizza181 [45]

Answer:

A heat engine is a device that converts internal energy into work. Internal energy is increased by the addition of heat. The efficiency of a heat engine is a measurement of how efficiently it works. Efficiency compares the amount of useful energy extracted from a process to the total energy input. The heat engine will be more efficient if the percentage is higher.

Explanation:

5 0
2 years ago
John accidentally drops his keys off the balcony at his apartment. John's friend Tony just happens to walk by at that moment and
EleoNora [17]

Explanation:

In order to find out if the keys will reach John or not, we can use the formula of projectile motion to find the maximum height reached by the keys:

H = V²Sin²θ/2g

where,

V = Launch Speed = 18 m/s

θ = Launch Angle = 40°

g = 9.8 m/s²

Therefore,

H = (18 m/s)²[Sin 40°]²/(2)(9.8 m/s²)

H = 6.83 m

Hence, the maximum height that can be reached by the projectile or the keys is greater than the height of John's Balcony(5.33 m).

Therefore, the keys will make it back to John.

7 0
3 years ago
How much power does an electric device use if the current is 36.0 amps and the resistance is 3.9 ohms?
dsp73
<span>Question: How much power does an electric device use if the current is 36.0 amps and the resistance is 3.9 ohms? </span>

How?: 

Equation: P = I^2 R          

Meanings:
P = Power in Watts
I = Current in Ampere
R = Resistance in ohms.

Plugged in: P = 36^2<span> x 3.9 = 5054.4
 
Answer: P= </span>5100 watts.

HOPE THIS HELPS! ^_^
<span>  </span>
8 0
3 years ago
Plss help im taking a quiz thx!!!
Iteru [2.4K]

Answer:

David

Explanation:

Because he is not on the ride with Ben and Justine

6 0
3 years ago
Read 2 more answers
Other questions:
  • When current increases and resistance remains constant what must happen to voltage?
    15·1 answer
  • What does a thermostat do if it gets too cool? ____________________________________ 2. what does a thermostat do if it gets too
    13·1 answer
  • Examine MSDS for hydrogen peroxide 3% and hydrogen peroxide 30% from the same manufacturer. Compare the information contained in
    10·2 answers
  • In a certain velocity selector consisting of perpendicular electric and magnetic fields, the charged particles move toward the e
    8·1 answer
  • What is the value of Vo in the
    5·1 answer
  • ¿A que velocidad viaja la luz?
    5·2 answers
  • Which is an advantage of storing data digitally?
    9·2 answers
  • Ms. Senko is moving a desk around her classroom, the desk weighs 125N.
    15·1 answer
  • PLEASE HELP MEEEE<br> ITS SIMPLE BUT CONFUSING
    5·2 answers
  • HELP!!! I HAVE NO IDEA!!!!!!!!!!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!