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Viktor [21]
3 years ago
6

The steps taken in scientific studies often follow similar patterns. which answer correctly describes the order in which the ste

ps should be performed?
a. state a hypothesis, then design an experiment to test it.
b. perform an experiment, then state a hypothesis that fits the results.
c. draw a conclusion, then design an experiment to support it.
d. state a theory, then find examples to support it so that it becomes a law.
Physics
2 answers:
scZoUnD [109]3 years ago
7 0
OPTION A WOULD BE YOUR ANSWER
Naya [18.7K]3 years ago
4 0
I believe that the answer to this would be A, because your form an educated geuss and then conduct an exeriement

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Which type of energy is stored in a stretched string on the bow in the following figure ​
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potential energy

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2.List two changes an unbalanced force can cause.
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Find the period of the leg of a man who is 1.83 m in height with a mass of 67 kg. The moment of inertia of a cylinder rotating a
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Answer:

T = 1.108\,s

Explanation:

The period of a physical pendulum is:

T = \sqrt{\frac{I_{O}}{m\cdot g \cdot L} }

T=2\cdot \pi \sqrt{\frac{\frac{1}{3}\cdot m \cdot L^{2} }{m\cdot g\cdot L} }

T=2\cdot \pi \sqrt{\frac{L }{3\cdot g} }

The length of the leg is approximately the height of the person:

L = 0.915\,m

The period is:

T = 2\cdot \pi \sqrt{\frac{0.915\,m}{3\cdot (9.807\,\frac{m}{s^{2}} )} }

T = 1.108\,s

4 0
3 years ago
A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find th
Igoryamba

A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find the velocity and the speed when t = 4. f(t) = 12t² + 35 t + 1

Answer:

Velocity = 131 m/s

Speed = 131 m/s

Explanation:

Equation of motion, s = f(t) = 12t² + 35 t + 1

To get velocity of the particle, let us find the first derivative of s

v (t) = ds/dt = 24t + 35

At t = 4

v(4) = 24(4) + 35

v(4) = 131 m/s

Speed is the magnitude of velocity. Since the velocity is already positive, speed is also 131 m/s

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