All categories

2 years ago

What equation would you use to calculate the ideal mechanical advantage of a wheel and axle? This is Science not Physics

Physics

1 answer:

Lyrx [107]2 years ago

3 0

you divide the radius of the wheel by the radius of the axle.

You might be interested in

Can someone help me

SashulF [63]

That is b. hope this helps cx

8 0

2 years ago

9- Under what circumstances would a vector have components that are equal in

valkas [14]

Explanation:

c. if the vector is oriented at 0° from the X -axis.

6 0

1 year ago

The kinetic energy of an object is equal to one half Its mass multiplied by its

netineya [11]

The answer is B cubed

4 0

2 years ago

Please look at the picture and answer the questions

Anarel [89]

Answer:

Which sentence from the passage shows that the function of the river depicted here has carried through to modern times?

Explanation:Which

sentence from the passage shows that the function of the river depicted here has carried through to modern times?

4 0

1 year ago

The work function (energy needed to remove an electron) of gold is 5.1 eV. Two pieces of gold (at the same potential) are separa

scoundrel [369]

Answer:

The value of L is 0.3 nm.

Explanation:

Given that,

Energy $\phi= 5.1 eV$

Transmission probability = 10⁻³

We need to calculate the value of L

We know that,

Formula of tunneling probability

$T=Ge^{-2kL}$ ....(I)

Where,

$k=\dfrac{\sqrt{2m(E-U)}}{\hbar}$ ....(II)

Where, m = mass of electron

$E = \phi+U$

$\phi = E-U$

Put the value in equation (II)

$k=\dfrac{\sqrt{2\times9.1\times10^{-31}\times5.1\times1.6\times10^{-19}}}{1.055\times10^{-34}}$

$k=1.155\times10^{10} m^{-1}$

From equation (I)

$ln T=-2kLG$

$L=\dfrac{ln T}{-2kG}$

$L=\dfrac{ln 10^{-3}}{-2\times1.155\times10^{10}\times1}$

$L=2.99\times10^{-10}\ m$

$L=0.299\times10^{-9}\ m$

$L=0.3\ nm$

Hence, The value of L is 0.3 nm.

7 0

3 years ago