A54 gram coin sits on a horizontally rotating turntable. the turntable makes 1.0 revolution each second. the coin is located 10 cm from the axis of rotation of the turntable. the coin will slide off the turntable if it is located more than 14.4 cm from the axis of rotation. calculate the coefficient of static friction? show all the work

What do you think car designers do if the damage caused by a crash test is too severe?

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?