7. Calculate the pressure 5m below the surface of an ocean, Assume the density of the ocean to be 1000kg/m' and take the atmospheric pressure be 1.013 x 10'Pa Anst 150300kg/m ​

Ineed the answer to question 1 , i’m desperate

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?