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3 years ago

The higher the amplitude of the wave, the greater its intensity and the greater its loudness.

Physics

1 answer:

lyudmila [28]3 years ago

4 0

True,when you turn the volume up on your television , you're actually turning up the amplitude<span>!

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You pull with a force of 77 N on a piece of luggage of mass 23 kg, but it does

Vinvika [58]

Answer:

The force of static friction acting on the luggage is, Fₓ = 180.32 N

Explanation:

Given data,

The mass of the luggage, m = 23 kg

You pulled the luggage with a force of, F = 77 N

The coefficient of static friction of luggage and floor, μₓ = 0.8

The formula for static frictional force is,

Fₓ = μₓ · η

Where,

η - normal force acting on the luggage 'mg'

Substituting the values in the above equation,

Fₓ = 0.8 x 23 x 9.8

= 180.32 N

Hence, the minimum force require to pull the luggage is, Fₓ = 180.32 N

5 0

3 years ago

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Father, I come to you worn and weary from the hard times I have walked through recently. I come to you seeking your shelter wher

Romashka [77]

This is not a HES tip

6 0

3 years ago

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What is the resistance of : A) A 1.70 m long copper wire that is 0.700 mm in diameter? B) A 20.0 cm long piece of carbon with a

astra-53 [7]

Answer:

(I). The resistance of the copper wire is 0.0742 Ω.

(II). The resistance of the carbon piece is 1.75 Ω.

Explanation:

Given that,

Length of copper wire = 1.70 m

Diameter = 0.700 mm

Length of carbon piece = 20.0 cm

Cross section area $A = (2.00\times10^{-3})^2\ m$

(I). We need to calculate the area of copper wire

Using formula of area

$A=\pi r^2$

$A=3.14\times(\dfrac{0.700\times10^{-3}}{2})^2$

We need to calculate the resistance

Using formula of resistance

$R=\dfrac{\rho l}{A}$

Put the value into the formula

$R=\dfrac{1.68\times10^{-8}\times1.70}{3.14\times(\dfrac{0.700\times10^{-3}}{2})^2}$

$R=0.0742\ \Omega$

(II). We need to calculate the resistance

Using formula of resistance

$R=\dfrac{\rho l}{A}$

Put the value into the formula

$R=\dfrac{3.5\times10^{-5}\times20\times10^{-2}}{(2.00\times10^{-3})^2}$

$R=1.75\ \Omega$

Hence, (I). The resistance of the copper wire is 0.0742 Ω.

(II). The resistance of the carbon piece is 1.75 Ω.

8 0

3 years ago

Name 4 COARSE grained rocks

MrRa [10]

Answer:

Diorite, Gabbro, and Granite

Explanation:

8 0

3 years ago

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Someone please help! It is a few science questions. Fairly easy!

borishaifa [10]

1) $0.92 * 100 = 92$ <Solve using the formula which is:
Mass=Density×Volume
$M=D*V$

2) $3.98 ml$

3) $V=L*W*H$ (Length × Width × Height)

$5*2*4=40$
$\frac{300}{40} =7.5$ (Answer=7.5)

3 0

3 years ago

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