An unstable particle is at rest and suddenly decays into two fragments. no external forces act on the particle or its fragments. one of the fragments has a speed of 0.56c and a mass of 6.68×10−27kg, while the other has a mass of 1.67×10−27kg.

what is the speed of the less massive fragment?

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force