During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 3.1 m/s, grabs and holds onto him so that they move off together with a velocity of 1.8 m/s. If the mass of the tackler is 115 kg, determine the mass of the receiver in kilograms. Assume momentum is conserved.

question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests

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