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anong grade po. yan?

seven po ba yan

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During a laboratory experiment, a student findsthat at 20° Celsius, a 6.0-meter length of copperwire has a resistance of 1.3 ohms. The crosssectionalarea of this wire is(1) 7.9 × 10^−8 m2 (3) 4.6 × 10^0 m2(2) 1.1 × 10^−7 m2 (4) 1.3 × 10^7 m2
Two students standing apart in a classroom have a gravitational force of attraction between them of 3.20 x 10-8 N. If one student has a mass of 50.0 kg and the other has a mass of 60.0 kg
1. The photon energy for light of wavelength 500 nm is approximately (Show your work).1.77 eV 3.10 eV 6.20 eV 2.48 eV 5.46 eV 2. Which of the following colors is associated with the lowest temperature? Explain your reasoning. A. Blue B. Green C. Yellow D. Red 3. Which of the following colors has the highest photon energy? A. Blue B. Green C. Yellow D. Red Explain your reasoning.
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The ability/inability to conduct an electrical current is called:a. electrolyte
c. conductivity
b. malleability
d. composition

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c. conductivity
Think of it like this: CONDUCTivity.

A large bottle contains a number of medicinal tablets each having a mass of 250mg. The mass of all the tablets is 1 kg. Calculate the number of tablets in the bottle.

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Considering the rule of three, the number of tablets in the bottle is 4.

In first place, the rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

That is, what is intended with it is to find the fourth term of a proportion knowing the other three.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other) , the direct rule of three must be applied.

To solve a direct rule of three, the following formula must be followed, being a, b and c known data and x the variable to be calculated:

a ⇒ b

c ⇒ x

So: $x=(cxb)/(a)$

The direct rule of three is the rule applied in this case as follow: if 250 mg = 0.250 g is the mass of 1 medicinal tablet, 1 kg = 1000 g is the mass of how many medicinal tablets?

0.250 grams ⇒ 1 medicinal tablet

1000 grams ⇒ x

Then:

$x=(1000 gramsx1 medicinal tablet)/(0.250 grams)$

x= 4 medicinal tablets

Finally, the number of tablets in the bottle is 4.

Learn more:

Given parameters:

Mass of each tablet = 250mg = 0.25g

Mass of all tablets in the bottle = 1kg = 1000g

Unknown:

Number tablets in the bottle = ?

Solution:

The number of tablets in the bottle;

Number of tablets = $(mass of all tablets in the bottle)/(mass of each tablet)$

Mass is the amount of matter that makes up a substance

Number of tablets = $(1000g)/( 250 x 10^(-3) )$ = 4000 tablets

A man is carrying a trolley of mass 6kg and having K.E. of 40 J . Calculate its velocity with which he is running .

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The formula to find kinetic energy is -

$K.E. = (1)/(2)*m* v^(2)$

Where,

$m = mass$

and

$v = velocity$

So, putting the values in the formula we get -

$40 = (1)/(2) *6*v^(2)$

$(40)/(3) = v^(2)$

$\sqrt (40)/(3) = 3.6514 m/s$

As we know that K.E = 1/2 mv² so
by arranging it
K.E ×2÷6 = v²
now by putting values
v²=13.33 m²/s²
so
v= 3.65 m/s....

How could you compare the energy carried in two different longitudinal waves

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U could compare them using the intensity technique when bending waves are negligible in comparison with quasi-longitudinal waves.

Energy carried in two ways can be campared by using the intensity technique when bending waves are negligible in comparison with quasi-longitudinal waves.

Difference between impulse and impulsive force

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Impulse is caused by a force during a specific time that is equal to the body's change of momentum
Impulsive force: the process of minimizing an impact force can be approched

An impulsive force would be, say, a punch. Something that lasts a short time.An impulse can, I guess, be anything that lasts for a short time. Such as a sound impulse, say when a door slams shut.

The temperature of a balloon is lowered with liquid nitrogen. The balloon appears to deflate because the A. nitrogen has burst the balloon. B. nitrogen is now inside the balloon. C. balloon has lost energy and condensed. D. gas in the balloon lost energy and condensed.

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The temperature of a balloon is lowered with liquid nitrogen. The balloon appears to deflate because the gas in the balloon lost energy and condensed. The answer is letter D.

Plss help plss i need it now​

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anong grade po. yan?

seven po ba yan

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Plss help plss i need it now