It is 11pm in Greenwhich England which is located at the Prime Meridian. Langley, Virginia is 75 degrees West of the Prime Meridian. What time is it in Langley?

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.

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).