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3 years ago

What two factors determine the amount of friction there will be between objects?

Physics

1 answer:

barxatty [35]3 years ago

6 0

Answer:

the two factors are the mass of the objects and the coefficient of friction between them

Explanation:

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To practice problem-solving strategy 22.1: gauss's law. an infinite cylindrical rod has a uniform volume charge density ρ (where

BabaBlast [244]

Let say the point is inside the cylinder

then as per Gauss' law we have

$\int E.dA = \frac{q}{\epcilon_0}$

here q = charge inside the gaussian surface.

Now if our point is inside the cylinder then we can say that gaussian surface has charge less than total charge.

we will calculate the charge first which is given as

$q = \int \rho dV$

$q = \rho * \pi r^2 *L$

now using the equation of Gauss law we will have

$\int E.dA = \frac{\rho * \pi r^2* L}{\epcilon_0}$

$E. 2\pi r L = \frac{\rho * \pi r^2* L}{\epcilon_0}$

now we will have

$E = \frac{\rho r}{2 \epcilon_0}$

Now if we have a situation that the point lies outside the cylinder

we will calculate the charge first which is given as it is now the total charge of the cylinder

$q = \int \rho dV$

$q = \rho * \pi r_0^2 *L$

now using the equation of Gauss law we will have

$\int E.dA = \frac{\rho * \pi r_0^2* L}{\epcilon_0}$

$E. 2\pi r L = \frac{\rho * \pi r_0^2* L}{\epcilon_0}$

now we will have

$E = \frac{\rho r_0^2}{2 \epcilon_0 r}$

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3 years ago

The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is

KengaRu [80]

Answer:

Gravitational attraction is caused by the mass of an object. Since Earth is far more massive than the Moon, the gravitational force exerted on the Moon is far greater than that of the Moon on the Earth. An example of the difference: while the Moon causes tides on the Earth, the Earth has the Moon locked so that the same face (minus some wobbling) is always visible from the Earth

Explanation:

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3 years ago

A 50.0 kg child takes a ride on a Ferris wheel that rotates with a tangential speed of 1.2 m/s. Find the centripetal force that

Lena [83]

F=m*(v^2/r)
F=50.0kg*(1.2m/s^2/16.0m)
F=4.5 N

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3 years ago

A steel ball is dropped from a building's roof and passes a window, taking 0.12 s to fall from the top to the bottom of the wind

Dvinal [7]

The top of the WINDOW is 19 meters from the ground. also steel balls dont bounce.

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3 years ago

Should the kinetic coefficient of friction and the static coefficient change with a different mass

dusya [7]

Explanation:

No. Surface contact area also no. The main issue is the types of materials in contact. Surface roughness somewhat matters. Certain surfaces such as ice are special in that pressure melts the ice.

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2 years ago