Determine the half-life of uranium-238 using the graph below. 8 billion years

4.5 billion years

23 billion years

15 billion years

Idon’t quite understand this problem

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

Why does a collision with an airbag cause less damage than a collision with a steering wheel