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dalvyx [7]
3 years ago
6

Why are scientific theories modified, but seldom discarded?

Physics
2 answers:
scoundrel [369]3 years ago
5 0
Because some scientific theories are true and some are false
atroni [7]3 years ago
5 0

Answer:

A scientific theory is a well-explained idea which is established after performing the experiments which provide the evidence in support of the hypothesis.

The theory can be modified as well as can be rejected with time as the advancement in the technology can provide new facts which could be added in the existed theory or contradictory facts which could lead to the rejection of the theory.  

The generation of new data can shift the paradigm of science on the basis of which the scientific theory is based.

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A 20.0 F capacitor initially charged to 30.0 uC is discharged through a 3.00 k resistor. How long does it take to reduce the cap
Maslowich

Answer:

t = 0.04159 s

Explanation:

when a capacitor and resister are connected in series. charge on its plates decreases exponentially

q = qo * e^{\frac{-t}{RC}}

where,

CHARGE q  =15.0 C

INITIAL CHARGE q_0 = 30.0 uc

Resistor R = 20.0 F

capacitor C  = 3.00

15 = 30* e^{\frac{- t}{(20* 10^{-6} * 3* 1000)}

t = 0.04159 s

3 0
4 years ago
Start Point: an unlit match. End Point: a lit match.
nalin [4]

Answer:

Ok

Explanation:

5 0
3 years ago
Why do different substances have different melting and boiling points?
azamat
Because the atoms and molecules all have different properties
3 0
3 years ago
A box of spherical jawbreaker candies is 23 g and its volume is 32.3 cm3. If the average mass of a single jawbreaker is 0.94 g,
Alex777 [14]

The radius of each jawbreaker is approximately 0.68 cm.

<h3>Volume of a sphere;</h3>
  • v = 4 /3 πr³

where

r = radius

Therefore,

23 g  = 32.3 cm³

0.94 g  = ?

cross multiply

volume of a single jawbreaker = 32.3 × 0.94 / 23 = 30.362 / 23 = 1.32 cm³

Therefore,

volume of each jawbreaker = 4 /3 πr³

1.32 = 4 / 3 × 3.14 × r³

r³ = 1.32 /4.18666666667

r³ = 0.31533683707

r = ∛0.31533683707

r = 0.680651651 = 0.68

Therefore, the radius of each jawbreaker is approximately 0.68 cm.

learn more on radius here: brainly.com/question/19172427

5 0
3 years ago
What is your weight on Venus, assuming that the acceleration due to gravity on Venus is 8.875 m/s^2 and your mass is 50 kg.
Volgvan

Answer:

Weight on Venus = 443.75 N

Explanation:

Weight of a body is the product of mass and acceleration due to gravity.

So we have

       Weight =  Mass x Acceleration due to gravity

        W = mg

        Mass, m = 50 kg

        Acceleration due to gravity, g = 8.875 m/s²

        W = 50 x 8.875 = 443.75 N

Weight on Venus = 443.75 N

3 0
3 years ago
Read 2 more answers
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