(b) Which statement about beta radiation is true? Tick one box
It is the fastest moving type of radiation.
It is the type of radiation with a negative charge.
It is the type of radiation with the greatest mass.
It is the type of radiation with the greatest range in air.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

The discovery of the electron as a subatomic particle was a result of