A 4.0 kgkg, 36-cmcm-diameter metal disk, initially at rest, can rotate on an axle along its axis. A steady 3.5 NN tangential force is applied to the edge of the disk. Part A What is the disk's angular velocity, in rpmrpm, 4.0 ss later

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio