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3 years ago

Me izz in canada hehe Xdjust in 2 mins wowwhat is immunization?

Physics

1 answer:

Kruka [31]3 years ago

4 0

Answer:

Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent.

Explanation:

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Someone is whirling a hammer that has a mass of 8.5 kg in the air that is tied to a Chain 1.5 m long in a circle that makes 1 re

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This is o
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3 years ago

S When two unknown resistors are connected in series with a battery, the battery delivers total power Ps and carries a total cur

Anna71 [15]

The value of each resistor is equal to (Ps/Pp) - 2 Ohms.

<h3>How to determine the value of each resistor?</h3>

Let the numerical value of two unknown resistors be R₁ and R₂ respectively.

Based on the information provided, the total equivalent resistance of these two unknown resistors connected in series with a battery is given by:

Rt = R₁ + R₂

Also, power is given by:

P = I²R

Ps = I²(R₁ + R₂) .....equation 1.

When the resistors are connected in parallel, we have:

Rt = (R₁R₂/R₁ + R₂)

Pp = I²(R₁ + R₂) .....equation 2.

Dividing eqn. 1 by eqn. 2, we have:

Ps/Pp = (R₁ + R₂)²/R₁R₂

Ps/Pp = [R₁(1 + R₂/R₁)²]/R₁R₂

Let x = R₂/R₁;

So, the power becomes;

Ps/Pp = x(1 + x)²

xPs/Pp = x² + 2x + 1

Ppx² + 2xPp + Pp = xPs

Ppx² + 2xPp + Pp - xPs = 0

x² + [(2Pp - Ps)/Pp]x + 1 = 0

Next, we would solve for x by using the quadratic formula:

$x = \frac{-b\; \pm \;\sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{-(\frac{2P_p -P_s)}{P_p} )\; \pm \;\sqrt{(\frac{2P_p -P_s)}{P_p} )^2 - 4 }}{2}$

x = (Ps/Pp) - 2

Therefore, x = R₂/R₁ = (Ps/Pp) - 2 Ohms.

Read more on resistance in parallel here: brainly.com/question/23282393

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8 0

2 years ago

Use the IUPAC nomenclature rules to give the name for this compound - SiO2

Anastaziya [24]

The compound in IUPAC nomenclature is called Silicon dioxide. It is a chemical compound that is an oxide of silicon with the chemical formula SiO₂. It has been known since ancient times. Hope this answers the question. Have a nice day.

8 0

3 years ago

Read 2 more answers

A system consists of a copper tank whose mass is 13 kg, 4 kg of liquid water, and an electrical resistor of negligible mass. The

laiz [17]

Answer:

T = 30.42°C

Explanation:

According to the conservation of energy principle:

$Energy\ Given\ by\ Resistor = Heat\ Gain\ by\ Copper + Heat\ Gain\ by\ Water\\E = m_{c}C_{c}(T_{2c} - T_{1c}) + m_{w}C_{w}(T_{2w} - T_{1w})$

E = 120 KJ

mc = mass of copper = 13 kg

Cc = specific heat capacity of copper = 0.385 KJ/kg.°C

T2c = T2w = Final Equilibrium Temperature = T = ?

T1c = Initial Temperature of Copper = 27°C

T1w = Initial Temperature of Water = 50°C

mw = mass of water = 4 kg

Cw = specific heat capacity of water = 4.2 KJ/kg.°C

Therefore,

$120\ KJ = (13\ kg)(0.385\ KJ/kg^oC)(T-27^oC) + (4\ kg)(4.2\ KJ/kg^oC)(T-50^oC)\\120\ KJ - 135.135\ KJ - 840\ KJ = (- 5.005T - 16.8 T)\ KJ/^oC\\T = \frac{-855.135\ KJ}{-28.105\ KJ/^oC}\\$

T = 30.42°C

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3 years ago

On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distanc

Arisa [49]

Answer:

Explanation:

The difference in time will be due to travel through atmosphere where speed of light slows down. If t be the thickness of atmosphere and c be the speed of light in space and μ be the refractive index of atmosphere difference in travel time will be as follows .

difference = \frac{2t\mu }{c}-\frac{2t }{c}

=\frac{2t}{c }\left ( 1-\mu \right )

Now t = 40 x 10³m ,μ = 1.000293 , c = 3 x 10⁸.

difference =\frac{2t\mu }{c}-\frac{2t }{c}

=\frac{2t}{c }\left ( \mu -1 \right )\\

=\frac{ 2\times 40\times 10^3}{3\times10^3 }\left ( 1.000293-1 \right )\\

=7.81\times 10^{-3} s

4 0

4 years ago

Me izz in canada hehe Xdjust in 2 mins wow​what is immunization?

Me izz in canada hehe Xdjust in 2 mins wowwhat is immunization?