Atoms with the same number of protons but different numbers of neutrons are

1) different elements

2) isotopes of the same element

3) isotopes of different elements

4) ions

The universe refers to? A. Our solar system B. everything that exist C. stars D. galaxies

What is the most important feed grain for livestock

In which direction will the box move? 3N 15 N 12 N 5 N A. to the right B. to the left C. downward and to the left upward and to the right

The area vector of a square loop of 5 turns of a conductor each with side length of 0.2 m carrying a current of 2 A is antiparallel to a uniform magnetic field of 50.0 T in which it lies.

The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 W/m^2. The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles.

Solve for real t: - 25=20t-5t^2

Contrast balanced and unbalanced forces.

A wave will travel only as long as it has energy

a box sliding on a frictionless surface when it suddenly begins to rain heavily. if the downpour of rainfall falls vertically into the box, gradually filling it, what would happen to the speed of the box

Which would fall with a greater acceleration in a vacuum-a leaf or a stone?