A harmonic wave in a wire has amplitude 4.67 mm, wavelength 1.93 m, and frequency 768 Hz. A. What is the propagation speed of the wave?Answer in units of m/sB. The wire has linear mass density of 20 g/m. Determine the wire’s tension?

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

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