Can someone explain this for me ?

would really appreciate it :))

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)