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
zhenek [66]
3 years ago
15

Which of the following scientific terms has the most evidence and observations?

Physics
1 answer:
Elza [17]3 years ago
7 0
<span>The correct answer should be B. a scientific law. A hypothesis is a belief by the scientist that may or may not be proven so it exists before evidence and observation, while a theory comes later. However, a law is observation itself and is always evidence of itself. There is no belief or lack of knowledge as to what will happen when it comes to laws. The law of action and reaction has plenty evidence and can easily be observed.</span>
You might be interested in
Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. The maxi
V125BC [204]

Answer:

1.25\times 10^{19}\ electrons

Explanation:

r = Rate of flow of charge = 20000 C/s

t = Time taken = 100 μS

Charge is given by

Q=rt\\\Rightarrow Q=20000\times 100\times 10^{-6}\\\Rightarrow Q=2\ C

The charge that flows between the ground and the cloud in this time is 2 C

Number of electrons is given by

n_e=\dfrac{Q}{e}\\\Rightarrow n_e=\dfrac{2}{1.6\times 10^{-19}}\\\Rightarrow n_e=1.25\times 10^{19}\ electrons

The number of electrons is 1.25\times 10^{19}\ electrons

6 0
3 years ago
If a rocket-powered sled is accelerated to a speed of 440 m/s in 2.20 seconds, then what is the acceleration?
Margarita [4]

Answer:

 a = 200 m/s²

Explanation:

Given,

The initial speed of rocket-powered sled, u = 0

The final speed of rocket-powered sled, v = 440 m/s

Time taken to reach final speed, t = 2.20 s

The acceleration of the body is given by the change in velocity by time

                                       a = (v - u) / t

                                          = (440 - 0) / 2.20

                                          = 200 m/s²

Therefore, the acceleration of the rocket-powered sled, a = 200 m/s²

3 0
3 years ago
2. What is the total effect of sound produced in an enclosed space called?
Igoryamba
I believe it is Acoustics, the real name for it would be like Reverberation. But go with Acoustics. :)
6 0
3 years ago
What's a cars net force if it's mass is 1500 kg and has a acceleration of 2 m/s (In Newton’s)
podryga [215]

Answer: 3,000 N

Explanation:

F = mass x acceleration

F = (1500 kg)(2 m/s²)

F = 3000 N

3 0
3 years ago
7. What does the slope of a position-time graph represent?
allochka39001 [22]

Answer:

a. Velocity

Explanation:

The slope of the tangent line on a position-time graph is the instantaneous velocity.

7 0
4 years ago
Other questions:
  • An Object moving 10 m/s undergoes acceleration for 6 seconds. If it moves 8 m to the left, find the acceleration
    12·1 answer
  • How does the work needed to lift an object and the gravitational potential energy of an object compare
    7·1 answer
  • A 75 watt light bulb is plugged into a 15 volt outlet. What is the current flow?
    15·1 answer
  • Certain family dynamics, such as abusive parenting, can increase the susceptibility of someone developing a(n) __________ disord
    8·2 answers
  • whats ur funniest thing u have ever done in ur life mine was me sending a picture of me and my friend at the beach to my princip
    14·1 answer
  • Can someone help me please
    12·1 answer
  • Which of the following can be correct units for acceleration?
    6·1 answer
  • A 15 g ball at the end of 2.4 m string is swung in the horizontal circle. It revolves once every 2.09 s. What is the magnitude o
    7·1 answer
  • 5. How many kilowatt-hours of energy would be used by a 40 W bulb that runs for 10 hours every
    12·1 answer
  • An electric motor is running on 120 V. The current is measured to be 2 A. How many ohms of resistance is the motor
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!