A block of mass 3m is resting at the bottom of a smooth plane making an angle θ with the horizontal. A bullet of mass m travelling with a velocity v parallel to the plane strikes the block and becomes imbedded in it. The block and the bullet together travel through a vertical height h.

If the bullet had been moving with a velocity 2v the vertical height would have been:

Which type of microscope would allow the viewer to see ribosomes inside a cell?

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?