who described atoms as having a positive nucleus with electrons that have different energies at different distances from the nucleus.

Describing Acceleration Which statements describe acceleration? Check all that apply. Negative acceleration occurs when an object slows down in the positive direction.

Does gravity have an effect on the potential difference of a battery?

A car moving at 10.0 m/s crashes into a barrier and stops in 0.050 s. There is a 20.0-kg child in the car. Assume that the child's velocity is changed by the same amount as that of the car, and in the same time period.

How does Jupiter's size compared to other planets?

Why is it better to build and test a prototype of a product than to pruduce tens of thousands of the product and then test it?

What kinetic energy has 1 tone car traveling at 15 m/s

Ceres is a dwarf planet located in the main asteroid belt.

Which solid is the best thermal insulator A. brass b. ice C. styrofoam D. copper

When a high-mass star explodes, which of the following is left over in the center? A. Black hole B. Neutron star C. White Dwarf D. either a or b

Which object is an insulator?