Help ?? .. imagine that a geologist finds an ammonite fossil in a rock layer. To which period Can the geologist fate that rock layer? 1. Tertiary, 2. Cretaceous, 3. Jurassic, 4. Triassic

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.

What is the final velocity of the initial velocity of 25 and -50?

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?