at what distance from the earth's surface is the gravitational potential energy of a spaceship-earth system reduced to half the energy of the system before the launch?

Apatient is in need of hydration. which type of solution are the patient's cells most likely in?

Agene in a type of bacteria when the ses bacteria reproduce asexually this mutation can only be inherited by

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?