What is an intergalactic travel ? What are 2 ways why isn't it possible to to do an intergalactic travel ? How can we develop tech that can help us with that in the future? Will Mark As BRAINLIEST​

Of is j/kg·k. if a 2.6 kg of isk to k,is ?

If a hiker that weighs 600 newtons climbs a 50 meter hill, how much gravitational potential energy has the hiker gained?

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above