For a conclusion to be accepted by the scientific community, the data must be accurate, free from error, andA.reproducible.

B.varied.

C.unique.

D.surprising

Answers

Answer 1

Answer: The data must be reproducible: it means that the data will be reliable and representative and not that this data would lead to one conclusion and another data would lead to another.

Data being varied, unique or surprising does not have anything to do with acceptability of the conclusion.

Answer 2

Answer:

Answer:

reproducible

Explanation: edg

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Which property of physical changes explains why matter is conserved in a physical change? The arrangements of particles do not change, and the bonds between atoms do not break. Mass, not energy, changes in a physical change. Energy and mass change in a physical change. The bonds between atoms do not break; it is only the arrangement that changes.

Energy in the atom can be absorbed or released only in quanta of energy.

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Released in quanta of energy

Frequency corresponds to the perception of a sound's A) Loudness B) Timbre C) Pitch D) Duration

Answers

Answer:

d.] duration

Explanation:

no explanation

Given: Q1 = 3.0 × 10-5 CQ2 = 4.0 × 10-5 C
K = 9.00 × 109 N ×
r = 3.0 m, determine F.

_____ N

Answers

The force is obtained from the charges Q₁ = 3×10⁻⁵ C and Q₂ = 4×10⁻⁵ C and distance r = 3 m is 1.2 N.

What is Coloumb's law?

Coloumb's law is defined as the force of attraction and repulsion between two charges is directly proportional to the product of charges and inversely proportional to the square of the distance between them.

The attractive and repulsive force, F∝ (q₁×q₂) / r². It is also known as F = k (q₁×q₂) / r², where k is the proportional constant. The unit of force is newton N.

From the given,

Q₁ = 3×10⁻⁵ C

Q₂ = 4×10⁻⁵ C

r = 3m

k = 9×10⁹ Nm²C⁻²

The attractive and repulsive force,

F = k (q₁×q₂) / r²

= (9×10⁹× 3×10⁻⁵×4×10⁻⁵) / (3)²

= 12×10⁻¹

= 1.2 N

Force = 1.2 N

Thus, the force of repulsion and attraction of given charges is 1.2 N.

To know more about Coloumb's law:

brainly.com/question/21083799

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F=KQ1Q2/R2
F=9 x 10^9 x 3 x 10^-5 x 4 x 10^-5 / 9
F=12 x 10^-1
F=1.2 N

The internal energy of a material is determined by

Answers

Answer:

Explanation:

The internal energy of any material is calculated as the sum of kinetic and potential energy of randomly distributed molecules.

This energy depends on temperature as well, if the temperature will increase the randomness will also increase hence will be the internal energy.

If any work is done on the system, then also the internal energy of the system is increased.

The combined amount of kinetic and potential energy of its molecules

2. A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to five times her weight as she goes through the dip. Of r = 21.5 m, how fast is the roller coaster traveling at the bottom of the dip?