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grandymaker [24]

2 years ago

15

In addition to passing an ASE certification test, automotive technicians must have __________ year(s) of on the job training or

__________ year(s) of on the job training and a two-year degree in automotive repair to qualify for certification.

1 answer:

Lunna [17]2 years ago

8 0

Two years or one year

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What kind of energy transformation happens when a boy uses energy from a sandwich to run a race

Semmy [17]

A boy eat a energy of a sandwich to run a race because when they eat a sandwich it helps them to help it mid workout and real nutritions of NYC and bring extra fuel and eating the right thing
I hope this help

4 0

2 years ago

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It is said that Archimedes discovered his principle during a bath while thinking about how he could determine if King Hiero’s cr

arlik [135]

Answer: The crown is not made of pure gold.

Explanation:

Archimedes discovered that any solid, of any shape, when submerged in a liquid receives an upward force, equal to the weight of the volume of the liquid removed by the solid, which is equal to the solid volume.

So, if any body is weighed in air, the normal force will be equal to the gravity force (which we call weight) which can be expressed as follows:

Fg = m g = δ V g = 34.7 N

When submerged in water, the normal force is equal to the difference between the actual weight, and the upward force due to Archimedes' principle, called buoyant force, as follows:

Fn = Fg - Ep = δx. V. g - δH20 . V. g = 31.5 N

Dividing Fg between Fn, and simplifying common terms, we have:

δx / (δx - δh20) = 34.7 / 31.5 = 1.10

Solving for δx, we get the following value:

δx = 11,000 Kg/m3, less dense than pure gold, so we can conclude that the crown was not made of pure gold.

3 0

3 years ago

4. Which 2D shape on the left would be used to make the 3D shape on the right? (1 pt.)

dexar [7]

it would be a bc its a sqare?well 3d is like you can say a cube 2d is like flat

Explanation:

7 0

2 years ago

Technician A says that diesel fuel system filters also include a water separator. Technician B says that water from the separato

Verizon [17]

Answer:

A is correct

Explanation:

water can cause several types of problems in a high pressure fuel injection system. Within reasonable and fairly broad limits, warmer fuel is better than cooler fuel. Some systems use a loop off the radiator system to help warm the fuel. No need to cool the fuel, especially with direct contact water.

6 0

3 years ago

(a) The reverse-saturation current of a pn junction diode is IS = 10−11 A. Determine the diode voltage to produce currents of (i

kirill115 [55]

Answer:

The equation used to solve a diode is

$i_d = I_se^\frac{V_d}{V_T}-1$

$i_d$ is the current going through the diode
$I_s$ is your saturation current
$V_D$ is the voltage across your diode
$V_T$ is the voltage of the diode at a certain room temperature. by default, you always use $V_T=25.9mV$ for room temperature.

If you look at the equation, $i_d = I_se^\frac{V_d}{V_T}-1$ , you'd notice that the $e^\frac{V_d}{V_T}$ grow exponentially fast, so we can ignore the -1 in the equation because it's so small compared to the exponential.

$i_d = I_se^\frac{V_d}{V_T}-1$

$i_d\approx I_se^\frac{V_d}{V_T}$

Therefore, use $i_d= I_se^\frac{V_d}{V_T}$ to solve your equation.

Rearrange your equation to solve for $V_D$ .

$V_D=V_Tln(\frac{i_D}{I_s})$

a.)

i.)

You're given $I_s=10^{-11}A$

at $i_d=10\mu A$ , $V_D=V_Tln(\frac{i_D}{I_s})=(25.9\cdot10^{-3})ln(\frac{10\cdot10^{-6}}{10\cdot10^{-11}})=.298V$

at $i_d=100\mu A$ , $V_D=V_Tln(\frac{i_D}{I_s})=(25.9\cdot10^{-3})ln(\frac{100\cdot10^{-6}}{10\cdot10^{-11}})=.358V$

at $i_d=1mA$ , $V_D=V_Tln(\frac{i_D}{I_s})=(25.9\cdot10^{-3})ln(\frac{1\cdot10^{-3}}{10\cdot10^{-11}})=.417V$

<em>note: always use</em> $V_T=25.9mV$

ii.)

Just repeat part (i) but change to $I_s=-5\cdot10^{-12}A$

b.)

same process as part A. You do the rest of the problem by yourself.

4 0

3 years ago