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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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F_P  + F_Q = M g
F_P = M g - F_Q
Torque, or moment of force:
∑ M_P = 0
∑ M_P = M g L - F_Q · 3 L
0 = M g L - 3 F_Q L         / : L
0 = M g - 3 F_Q
3 F_Q = M g
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0

Explanation:

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2 years ago
A solid sphere of weight 42.0 N rolls up an incline at an angle of 36.0°. At the bottom of the incline the center of mass of the
Alecsey [184]

Answer:

Part a)

KE = 77.95 J

Part b)

L = 3.16 m

Part c)

distance L is independent of the mass of the sphere

Explanation:

Part a)

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so we will have

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so we will have

KE = \frac{1}{5} mv^2 + \frac{1}{2}mv^2

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KE = \frac{7}{10}(\frac{42}{9.81})(5.10^2)

KE = 77.95 J

Part b)

By mechanical energy conservation law we know that

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So we will have

mgLsin\theta = KE

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Part c)

by equation of energy conservation we know that

\frac{7}{10}mv^2 = mgL sin\theta

so here we can see that distance L is independent of the mass of the sphere

7 0
3 years ago
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Answer:

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3 years ago
It says find the slope for each line I'm stuck on number one can you help me
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