It takes 25.7 n to push a crate
at a constant speed across flat
ground where mk = 0.238.
what is the normal force acting
on the crate?
(unit = n)

resonant frequency

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m