3 years ago

Figure 2 shows the junction of three wires, F, G and H, in a circuit. The current in wire F is 6.0A.

Physics

1 answer:

Irina-Kira [14]3 years ago

5 0

Answer:

I don't know!!!!I don't know!!!!I don't know!!!!Explanation:

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Can you guys help me

andreev551 [17]

B will be the answer

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3 years ago

What is the leading cause for change between states of matter?

valkas [14]

Change of energy (normally potential energy via temperature change)

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3 years ago

In a carnival ride, passengers stand with their backs against the wall of a cylinder. The cylinder is set into rotation and the

Lerok [7]

Answer:

Minimum speed will be equal to 2.213 m/sec

Explanation:

We have given radius of the r = 2 m

Coefficient of friction $\mu =0.25$

At minimum speed frictional force will be equal to centripetal force

So $\mu mg=\frac{mv^2}{r}$

$\frac{v^2}{r}=\mu g$

$v=\sqrt{\mu rg}=\sqrt{0.25\times 2\times 9.8}=2.213m/sec$

So the minimum speed will be equal to 2.213 m/sec

8 0

3 years ago

If the 0.09-mm-diameter tungsten filament in a light bulb is to have a resistance of 0.11 Ω at 20∘C, how long should it be?

skad [1K]

Answer:

Length L=0.0125 m

Explanation:

Given data

Resistance R=0.11Ω

Temperature T=20°C

Resistivity of tungsten at 20°C p=5.6×10⁻⁸Ω.m²

Radius of filament r=0.09/2 =0.045 mm =0.045×10⁻³m

To find

Length of filament L

Solution

The Cross section of area of filament is given as:

$A=\pi r^{2}\\ A=\pi (0.045*10^{-3})^{2}\\A=6.3585*10^{-9}m^{2}$

The Resistance of a material is given as:

$R=p\frac{L}{A} \\L=\frac{AR}{p}\\ L=\frac{(6.3585*10^{-9})(0.11)}{5.6*10^{-8}}\\L=0.125m$

6 0

3 years ago

Two technicians are discussing how a clutch disengages. Technician A says a gap on each side of the clutch disk facing when dise

victus00 [196]

Answer: A - a gap on each side of the clutch disk facing when disengaged

Explanation:

A clutch switch is used to ensure the clutch is disengaged

or Prevent the engine from starting unless the clutch pedal is depressed

When a clutch is disengageda gap will be on each side of the facing.

5 0

3 years ago

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