A student is doing an investigation on the movement of objects. Why is it important for her to repeat the investigation several times?​

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe