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3 years ago

11

True testing means that a serious effort is made to falsify (“disprove”) each possible explanation.

1 answer:

Fudgin [204]3 years ago

7 0

Answer:

False.

Explanation:

This explanation is the opposite of true testing - a term known as falsifiability. Falsifiability, when it relates to science, refers to how it should be possible to prove a hypothesis or theory wrong. Thus, the point of testing for falsifiability is to test in which condition is the theory wrong.

A term that might relate to the phrase ‘true testing’ used in the question would be testability. Which refers to the practice of testing a hypothesis or theory to see whether it is true or false.

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In order to cool 1 ton of water at 20°C in an insulated tank, a person pours 140 kg of ice at –5°C into the water. The specific

salantis [7]

Answer:

$T = 6.31 ^0 C$

Explanation:

1 ton = 907.2 kg

so here heat given by water = heat absorbed by the ice

so by energy balance we will have

$Q_1 = Q_2$

$mL + ms\Delta T_1 + ms\Delta T_2 = ms\Delta T_3$

so we have

$140(2.11)(5) + 140(333.7) + 140(4.18)(T) = 907.2(4.18)(20 - T)$

$48195 + 585.2 T = 75841.9 - 3792.1 T$

$T = \frac{27646.92}{4377.3}$

$T = 6.31 ^0 C$

7 0

3 years ago

vladimir2022 [97]

Answer:

true true false true false

5 0

2 years ago

Read 2 more answers

Newton's first Law implies that an object at rest will remain at rest unlss a net force acts on it / TRUE or FALSE?

jek_recluse [69]

Answer:

True

Explanation:

If an object is at rest it will stay at rest unless a force acts on it.

3 0

3 years ago

In order to be _______________ forces, their effects must cancel each other out and not cause a change in the object's motion

Tju [1.3M]

Balancing.

When the same force is applied from both sides,the forces cancel out each other.

4 0

3 years ago

What will happen to the centripetal acceleration if the velocity of the object increases to two times its original value?

mrs_skeptik [129]

Answer:

<em>the centripetal acceleration will now be four times its initial value</em>

Explanation:

v=velocity

a=centripetal acceleration

r=radius to the center

take note tat a centripetal force is the force tat is needed to keep a body moving along a circular path

centripetal force is given by f=mv^2/r

a=v^2/r

v=v $v_{0}$

wen v $v_{0}$ is doubled , we ave

2v $v_{0}$

substituting into the previous equation of centripetal force

a=( $(2v_{0})^{2}$ /r

a=4 $v_{0}$ ^{2}/(r)

from the equation, is can be discovered that the centripetal acceleration will now be four times its initial value

4 0

3 years ago