3. two forces act on the 2 kg box shown.
tell
5n-
un
a 4 n force acts to the right and a 6 n force acts to the left. what is the net force acting on the box
a. 10 n to the right
b. 10 n to the left
c. 2 n to the right
d. 2 n to the left

The net force acting on the box is 2N to the left.

Explanation:

The net force acting that is on an object is the sum of all of the individual forces acting on it.

If two forces act on an object in opposite directions, the net force is the difference between the two forces. In this case, the net force is always greater than or equal to zero but less than either of the individual forces.

If two forces act on an object in the same direction, the net force is the sum of the two forces. In this case, the net force is always greater than either of the individual forces.

Here in the figure the two forces acting in opposite direction on the object.

The direction of the resultant force is same direction as the force with the larger magnitude

Thus the net force is 2N to the left

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