A 1500 kg vehicle is travelling at 20 ms? What average net force is required to stop the vehicle within a 4.0 second interval?

A- 1.5 x 10^N
B- 5.0 N
с- 7.5 x 10' N
D- 260 N

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

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