Two objects are moving toward a collision. The first object, mass 30 kg, traveling at 2.0 m/s north. The second object, mass 80 kg, traveling west at 1.0 m/s. After the objects collide inelastically, they move off in a northwest direction with a momentum of about 100 kg•m/s. How much kinetic energy was lost in this collision? 1.0 m/s 80kg zona 1 2.0 m/s 30 kg​

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

What was the first instrument to ever record an earthquake?