Find the change in wavelength of 80pm x-rays that are scattered 120degeee by a target​

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s