A ball of modeling day weighs 0.5 kg and is thrown in a horizontal line where it hits a box weighing 5 kg and it gets stuck to the box. After the impact, the box moves at a velocity of 0.25 m/s. What is the initial velocity of the modeling clay?

A)5.45m/s

B)3.12m/s

C)1.12m/s

D)2.75m/s

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

How do you know how many valence electrons an atom has?