Question 25 1 pts
When an ambulance is moving away from you with sirens on but you are moving toward the ambulance, choose the correct
statement about the frequency of the sirens you hear.
The frequency you hear is higher than the original frequency of the sirens.
The frequency you hear is lower than the original frequency of the sirens.
The frequency you hear is the same as the original frequency of the sirens.
o It does not have enough information to determine if the frequency you hear is higher or lower than the original frequency of the sirens

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x,y,t)along the plate at any time t.b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax

The strong nuclear force acts over a small distance than the electrostatic force. true or false