Plz helpA student heard the echo of her voice from nearby solid object after 2 sec. how far away is the solid object? The speed of sound in air is 340m/s. A. 170m

B. 340m

C. 510m

D. 680m

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

What is a costume plot? why is it important to a film or theater production?