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marishachu [46]
3 years ago
14

Which of the following is required to change the scientific knowledge base

Physics
1 answer:
Ksenya-84 [330]3 years ago
5 0
Scientific knowledge is based upon observation, and it is supplemented by experimentation.<span> Scientific research follows the scientific method, a four-step process that guides scientists in the accumulation of knowledge.</span>
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Which of the following people would make the best scientist?
Alona [7]

Answer:

Alain Aspect, David Baltimore, Allen Bard, and Timothy Berners - Lee

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How does the force exerted by two magnets change as the magnets are moved farther apart?
galben [10]
<span>The magnetic force exerted by two magnets decreases as the magnets are moved farther apart.

</span><span>The magnetic force between two magnets is the force of repulsion or attraction between two magnets which leads to the calculation of a positive work.
</span><span>The magnetic of a magnet is strongest at its poles.</span>
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3 years ago
A bridge is supported by two piers located 14 meters apart. Both the left and right piers provide an upward force on the bridge,
almond37 [142]

Answer:

4375 N, 7875 N

Explanation:

since the body is equilibrium

total upward force = total downward force

w weight of the bridge = FL + FR

when the car was introduced,

total downward force = total upward force

FL₁ + FR₁ = w + (m × acceleration due to gravity) with w = FL + FR

then FL₁ + FR₁  = FL + FR + Mcg

FL₁ + FR₁  - FL - FR = Mcg

ΔFL + ΔFR = 1250 × 9.8 = 12250 N

taken the left as the pivot point and using the principle of moment

ΔFR × 14 m = 12250 N × 5 m + (ΔFL × 0 m) since the left is the pivot point.

ΔFR = 61250 / 14 = 4375 N

but

ΔFL + ΔFR = 12250 N

ΔFL = 12250 - 4375 = 7875 N

5 0
3 years ago
The Buddhist teaching of ______________ asserts that everything is in a perpetual state of flux (always changing), yet we imagin
dezoksy [38]

Answer:

<u>B. impermanence</u>

Explanation:

One of the many popular religions is Buddhism. Those who believe in it's teachings are called Buddhist.  The impermanence teaching is a Buddhist teaching that sserts that everything is in a perpetual state of flux (always changing).

<em>Impermanence in the sense of nothing being permanent </em>but always changing.

5 0
3 years ago
Two conducting spheres are mounted on insulating rods. They both carry some initial electric charge, and are far from any other
natka813 [3]

The question is incomplete. The complete question is :

Two conducting spheres are mounted on insulating rods. They both carry some initial electric charge, and are far from any other charge. Their charges are measured. Then, the spheres are allowed to briefly touch, and the charge in one of them (sphere A) is measured again. These are the measured values:

 a). Before contact:

Sphere A = 4.8 nC

Sphere B = 0 nC

What is the charge on sphere B after contact, in nC?

b). Before contact:

Sphere A = 2.9 nC

Sphere B = -4.4 nC

What is the charge on sphere B after contact, in nC?

Solution :

It is given that there are two spheres that are conducting and are mounted on an insulating rods which carry a initial charge and they are briefly touched and then one of the charge is measured.

Here the charge becomes divided when  both the spheres are connected and then removed.

a). charge after they are charged

   $Q = \frac{q_1+q_2}{2}$

    $Q = \frac{4.8+0}{2}$

      = 2.4 nC

b). The charge is

    $Q = \frac{q_1-q_2}{2}$

    $Q = \frac{2.9-4.4}{2}$

      = -0.75 nC    

6 0
3 years ago
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