What is a multicellular photosynthetic marine organism with motile sperm cells and grows very fast don’t like attach to rocks being pounded by waves

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

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?

What causes the formation of ocean currents?