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2 years ago

Between ball B and ball C, ball __ has LESS potential energy because _

Physics

1 answer:

Citrus2011 [14]2 years ago

8 0

Answer: b

Explanation:

Ec= (1/2)m × v^2

By the formula, you can see that the bigger the mass, the bigger the Cinetic Energy.

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234 oz to tons using the table method (US)

Rom4ik [11]

Answer:

234 oz = 0.0066339 t.

Explanation:

Boom Logic...

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3 years ago

Coronary artery disease is a disease of the heart where the arteries and blood vessels become clogged with fat deposits called _

sineoko [7]

Plaque is the reasoning for this question ;)

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3 years ago

Read 2 more answers

A ball of mass 0.35 kg hangs straight down on a string of length 13 cm. It is then swung upward, keeping the string taut, until

Anni [7]

Answer:

PE=0.29J

Explanation:

According to the description, there is a angle and in point swung upward of 70°

So,

$Y=13*10^{-2}*cos(70) \\Y=0.0444m$

Appling the equation of Potential Energy we have,

$PE=mgh\\PE=(0.35)(9.8)(0.13-0.0444)\\PE=0.29J$

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3 years ago

What is speed of light in crown glass?

german

Answer:

1.97 x 10^8 m/s

Explanation:

refractive index of crown glass with respect to air, n = 1.52

speed of light in air, c = 3 x 10^8 m/s

Let v be the speed of light in crown glass.

By use of the definition of refractive index

$n = \frac{c}{v}$

where, n be the refractive index of crown glass, c be the speed of light in vacuum and v be the speed of light in crown glass

$1.52 = \frac{3 \times 10^{8}}{v}$

$v = \frac{3 \times 10^{8}}{1.52}$

v = 1.97 x 10^8 m/s

Thus, the speed of light in crown glass is 1.97 x 10^8 m/s.

5 0

3 years ago

When a certain gas under a pressure of 4.90 106 pa at 20.0°c is allowed to expand to 3.00 times its original volume, its final p

Elina [12.6K]

As per question the initial states of the gases are given as

INITIAL STATE: FINAL STATE:

$p_{1} =4.90106 pa$ $p_{2} =1.06106 pa$

$v_{1} =v[say]$ $v_{2} =3v[say]$

$T_{1} =20 degree celcius =293 K$ $T_{2} =?$

AS per combined gas equation obtained from the combination of Boyle's law and Charles law [Basic ideal gas laws]

$\frac{p_{1} v_{1} }{T_{1} } =\frac{p_{2}v_{2} }{T_{2} }$

Hence $T_{2} =\frac{p_{2} v_{2}T_{1} }{p_{1} v_{1} }$

= $\frac{1.06106*3v*293}{4.90106*v}$

=190.3 K [ANS]

6 0

2 years ago

Between ball B and ball C, ball ____ has LESS potential energy because ___

Between ball B and ball C, ball __ has LESS potential energy because _