What tools are used to pick up tiny objects

What is the relationship between the wavelength of a wave and it's energy?

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.

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