you push a cart with mass 20kg forward ,giving it an acceleration of 2 m/s^2 how much force did you apply

Explain why you think this diagram shows what happened to the carbon in the biodome.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.