All categories

3 years ago

The differences between models and scientific laws and theories.

Physics

1 answer:

pogonyaev3 years ago

4 0

Answer:

Explanation:

A scientific theory can be said to mean a set of statements that are developed through a process of continued abstractions. These theories are aimed at a generalized statement usually used in explaining a phenomenon. A theory is quite concerned about the truth, much more than being understood. They are not expected to be stories

A model, on the other hand, is a purposeful representation of reality. They provide a local understanding of any given phenomenon. Models are more particular about being understood, rather than the truth

You might be interested in

Describe a solar eclipse. Be sure to include the positions of the sun, moon, and earth.

Alex777 [14]

It’s the type of eclipse that occurred when the moon passes between the sun and earth, and when the moon fully or partially blocks the sun.

7 0

2 years ago

Which statement correctly describes the relationship between frequency and wavelength?

liraira [26]

For a wave:

v = fλ

v is the velocity, f is the frequency, and λ is the wavelength.

Assuming the velocity of the wave doesn't change...

If you increase its frequency, its wavelength will shorten.

5 0

3 years ago

Read 2 more answers

A Block slides down an incline that makes an angle of 30? with the horizontal direction. The coefficient of kinetic friction bet

astraxan [27]

Answer:

Acceleration = 2.35 m/ $s^{2}$

Speed = 8.67 m/s

Explanation:

The coefficient of friction , u =0.3

The angle of incline = 30°

The two forces acting on block are weight and friction.

weight along the incline = mg cos60° = $\frac{mg}{2}$ = 0.5 mg

Friction along incline = umg cos30° = mg $0.3\times \frac{\sqrt{3}}{2}$

Friction along incline = 0.26 mg

Net force acting on the weight = (0.5 - 0.26) mg = 0.24 mg

Acceleration = $\frac{net force}{mass}$ = 0.24 g = 2.35 m/ $s^{2}$

The height of incline = 8 m

Length of the inclined edge = 16 m

$v^{2}=u^{2}+2as$

$v^{2}= 2\times 0.24 \times 9.8\times 16$

v= 8.67 m/s

5 0

3 years ago

If a vector that is 3cm long represents 30 km/h, what velocity does a 5 cm long vector which is drawn using the same scale repre

FrozenT [24]

Answer:

False knowww yess ofcure

8 0

3 years ago

An airplane has a starting velocity of 300m/s. It then accelerates at a rate of 45m/s2 for a time of 10s. What is it's final vel

Olenka [21]

A = (v - u) / t

a = acceleration
v = final velocity
u = initial velocity
t = time

45 = (v - 300) / 10

45 × 10 = v - 300

450 + 300 = v

v = 750 m/s

Hope this helps!

P.S. Let me know if you need an explanation

8 0

2 years ago