Through x rays is harmful for human health it is used in medical field why?

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.

Give an example in which the electrical energy changes to light energy

Which planet do you think would be easiest for humans to colonize some day?