A bat sent out a pulse with a frequency of 95 kHz and a wavelength of 3.7 mm to locate its prey. If the bat received an echo after 0.22 s, how far away was the prey?

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?