Steel is more elastic than rubber<span> because </span>steel<span> comes back to its original shape faster </span>than rubber<span> when the deforming forces are removed, hope it helps :)</span>
Refers to the attachment for the answer.
Let us assume that the object of mass m is kept on the Inclined plane.
Now, there will act one force called as Component of the Weight along the Incline which is given by the Relation,
mgsinθ,
where θ is the angle which the incline makes with the surface or Angle of the Incline.
Now, If there will be no friction and the object is moving along the incline
Force = mgsinθ
⇒ ma = mgsinθ
∴ a = gsinθ
This case is valid when the angle of the Incline is greater than the angle of repose, which means the object is moving with no cause or acing of the force.
But sometimes when the object does not move without the action of force, I mean that the angle of repose is greater than the angle of the incline, then we need to apply the force so that the object can move then,
Force applied = mgsinθ
∴ a = gsinθ
It will change the cases when friction is involved.
Now, For velocity, It can be found by using the equation of Motions. Time, Distance or initial velocity, etc must be given if the question will be asked related to the velocity. So by using them, you can find that.
Answer:
The muscles, joints and bones are adversely affected by immobility. The bones lose calcium as a result of the lack of weight bearing activity and this can lead to disuse osteoporosis, hypercalcemia, and fractures.
You would use the equation Q=cmΔT, where Q is the amount of heat added, c is the specific heat of the substance (or the amount of heat needed per unit of mass to raise the temperature by one degree Celsius), m is mass, and <span>ΔT is the change in temperature. In this case, Q, heat added, would be equal to (1)(90)(86), which equals 7740 calories.</span>
To develop this problem it is necessary to apply the concepts related to frequency from Hooke's law.
By Hooke's law we know that the Force is defined as
Where,
k = Spring constant
Displacement
at the same time Force can be defined by Newton's second law as,
F = mg
Where,
m = mass
g = gravity
Equating we have
Frequency and oscillation can be defined as
Then replacing,