3 years ago

Pls help me with this one :))

Physics

1 answer:

zalisa [80]3 years ago

8 0

Answer:

Row A is correct

Explanation:

both conduction and convection require mass to complete any heat transfer. A vacuum contains no mass

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3 years ago

A current of 5 A passes through a variable resistor set to 15 Ω. Calculate the voltage

OLEGan [10]

Answer:

75 volt

Explanation:

Current (I) = 5 A

Resistance (R) = 15 Ω

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3 years ago

There are six books in a stack, and each book weighs 5 N. The coefficient of static friction between the books is 0.2. With what

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3 years ago

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A moving particle fragments or decays into a particle moving at .53c, mass 135 MeV/c2, and a particle moving at .98c, mass 938 M

Svetllana [295]

Answer:

M = 1073 Mev/c2

u = 0.95 C

Explanation:

given data:

m1 =135 Mev/c2

v1 = 0.53 c

m2 = 938 Mev/c2

v2 = 0.98 c

from conservation of momentum principle we have

$\frac{mu}{\sqrt{1-\frac{u^2}{C^2}}} = \frac{m1v1}{\sqrt{1-\frac{V1^2}{C^2}}} +\frac{m1v1}{\sqrt{1-\frac{V2^2}{C^2}}}$

$\frac{mu}{\sqrt{1-\frac{u^2}{C^2}}} = \frac{135*0.53c}{0.848} +\frac{938*0.98c}{0.2}$

$\frac{mu}{\sqrt{1-\frac{u^2}{C^2}}} = 4680.6 C$ ...............1

Total mass of INITIAL particle M =m1+m2 = 1073 Mev/c2

using equation 1

$\frac{1073 u}{\sqrt{1-\frac{u^2}{C^2}}}= 4680.6C$

solving for u we get

u = 0.95 C

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4 years ago

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Elements are arranged from left to right and top to bottom in order of increasing atomic number.:)

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3 years ago

Pls help me with this one :)) ​

Pls help me with this one :))