Spacecraft A is approaching spacecaft B. The velocity of A relative to B is 0.6c. Both vehicles are moving at constant velocity. A sends a beam of laser light at B. The velocity of the laser beam relative to A is c. What is the velocity of the laser beam relative to B

If the new moon happens on january 15th, what shape will it be on february 6th?

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work