Suppose a wheel with a tire mounted on it is rotating at the constant rate of 3.37 times a second. A tack is stuck in the tire at a distance of 0.387 m from the rotation axis. Noting that for every rotation the tack travels one circumference, find the tack's tangential speed.

8.195 m/s

Explanation:

A)Period is given by: T = 1/f where f is frequency. Thus,

Period of time for 1 rev = 1/3.37 = 0.2967s

Now, velocity = distance/time

Distance will be equivalent to the circumference.

Thus,

angular Velocity= Circumference of the Circle/Time; Thus,

ω = d/t = 2πr/t

r is radius and is 0.387m

Thus,

ω = 2π x 0.387/0.2967 = 8.195 m/s

d eras and periods

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is