Answer:
It depends on 2 factors
the nature of the materials
the normal force.
Explanation:
It depends on 2 factors
the nature of the materials that are in friction and the treatment that they have followed. This factor is expressed by a numerical value called the coefficient of friction or friction.
the force exerted by one body on the other, that is, the normal force.
Answer:
change that a lead is 0.13533
Explanation:
µ = 50000
f(t) = [e^(-t/µ )]/[µ if t ≥ 0
f(t) = 0 if t < 0
τ = 100000
to find out
the chance that a led will last
solution
we know function is f(t) = [e^(-τ/µ)]/[µ]
τ = 100000
so we can say that probability (τ ≥ 100000 ) that is
= 1 - Probability ( τ ≤ 100000 )
that is function of F so
= 1 - f ( 100000 )
that will be
= 1 - ( 1 - [e^(-τ/µ)]/[µ] )
put all value here τ = 100000 and µ = 50000
= 1 - ( 1 - [e^(-100000/50000)] )
= 1 - 1 - [e^(-100000/50000)]
= 0.13533
so that change that a lead is 0.13533
If there are no dissipative forces acting on the string, than the <em>principle of conservation of energy</em> holds.
When the string is relaxed, it has zero elastic potential energy
If we were strech the she spring, we would increase it's potential energy. After releasing the spring, when it's relaxed again, all potential energy will have been converted into kinetic energy.
Therefore, the elastic potential energy of the stretched spring should be equal to the amount of kinetic energy when it's relaxed
Answer:
The car is moving at a speed faster than the raindrops go down your window.
Explanation:
Hope this helps, have a good night.
Answer:
The fulcrum of the metre stick is at the 40 cm mark
100 g * 10 cm = 1000 g-cm clockwise torque
x * 30 cm = 1000 gm-cm = counterclockwise torque for balance
X = 1000 / (40 -10) = 1000 / 30 = 33.3 gm at 10 cm to balance