Two waves, each with intensity 40 db, interfere constructively. what is the intensity of the combined waves, in db?

One hypothesis states that plate movement results from convection currents in the a. inner core. c. lithosphere. b. asthenosphere. d. outrr core.

For maximum visibility, backing a vehicle requires a driver to:

Which of the following is the characteristic of an inelastic collision? a. The total mass is not conservedb. The total energy is not conservedc. The momentum is not conservedd. the kinetic energy is not conservede. Newtons laws do not apply

A particular Alnico (aluminum, cobalt, nickel, and iron) bar magnet (magnet A) has a mass of 10 g. It produces a magnetic field of magnitude 3e-05 T at a location 0.17 m from the center of the magnet, on the axis of the magnet.

What beat frequencies result if a piano hammer hits three strings that emit frequencies of 392.0, 587.3, and 146.8 hz? (enter your answers from smallest to largest.) ?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?

What is efficiencywhat is the formula of mechanical advantage and velocity ratio of labour

What is the wavelength of an ekectromagnetic wave that has a frequency of 40,000 hz? the speed of light is 3x10^8 m/s?

Witch of the following is an example of a pull

Can two like charges attract each other