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2 years ago

7

Given the vectors a=6m west and b=11 m south using graphical method determine which of the following most likely represent the m

agnitude and direction of the difference vector a-b respectively

1 answer:

djverab [1.8K]2 years ago

5 0

66666 and yw a and yes let’s

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If a transformer has a primary with 100 V and fifty coils, and a secondary that yields 20 V, how many coils are on the secondary

melomori [17]

Ideally, if all the magnetic of one winding cuts the other winding, and there isn't any loss in the transformer core or the resistance of the wire, then the voltage across each winding is proportional to the number of turns in its coil.

If you apply 100 V to a winding of 50 turns, then a winding that yields 20 volts
must be wound with

(20/100) of 50 turns = 10 turns

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3 years ago

What determines whether the equilibrium temperature of a mixture of two amounts of water will be closer to the initially cooler

larisa [96]

Answer:

Explanation:

It is determined by the amount of cold or hot water in the mixture to know if it will be closer to been hot or cold.

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3 years ago

19. The current in a hair dryer is 12 A. The hair dryer is plugged into a 120-V outlet. How

patriot [66]

Answer:

10 ohms

Explanation:

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3 years ago

If a scuba diver fills his lungs to full capacity of 5.5 L when 10 m below the surface, to what volume would his lungs expand if

umka21 [38]

Answer:

The volume at the surface is 10.97 L.

Explanation:

Given that,

Volume = 5.5 L

Height = 10 m

Density of sea water= 1025 kg/m³

We need to calculate the pressure at that point

Using formula of pressure

$P'=P+\rho gh$

Put the value into the formula

$P'=1.01\times10^{5}+1025\times9.8\times10$

$P'=201450\ Pa$

We need to calculate the volume at the surface

Using equation of ideal gas

$PV= RT$

So, for both condition

$PV=P'V'$

Put the value into the formula

$V=\dfrac{201450\times5.5}{1.01\times10^{5}}$

$V=10.97\ L$

Hence, The volume at the surface is 10.97 L.

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3 years ago

Read 2 more answers

(A star if you answer this question) A school bus is traveling at 11.1 m/s and has a

12345 [234]

$\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Kinematics in real world.

So, as given here, we have to find the Mass of the bus from the given momentum, so we get as,

P = m * V

momentum = mass * velocity

here, P= 152625 kgm/s and v= 11.1 m/s

so substituting we get as,

m = 152625 ÷ 11.1 => 13,750 kg

hence,the mass of the bus is 13,750 kg.

3 0

3 years ago