A wheel is turning about an axis through its center with constant angular acceleration. Starting from rest, at t=0t=0, the wheel turns through 8.75 revolutions in t=t= 13.0 ss . At 13.0 ss the kinetic energy of the wheel is 36.0 J Part A For an axis through its center, what is the moment of inertia of the wheel? Express your answer with the appropriate units.

Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m

The material that keeps its new shape after it is stretched is called?

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.