Asap! points and brainliest define longitudinal wave: a) a wave that vibrates the medium at right angles (perpendicular) to the direction in which the wave energy travels b) the distance between two corresponding parts of a wave. for example, from crest to the very next crest c) wave that vibrates the medium in the same direction in which the wave energy travels d) the distance from the rest position to a crest or a trough; the more energy, the greater the amplitude

What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

Determine the maximum r-value of the polar equation r =3+3 cos 0