What is made of two protons and two neutrons?

Three of the following simple machines are basically the same. The one that does NOT belong with the group is the__ A. lever C. wedge B. pulley D. wheel and axle

Imagine that you have a rectangular swimming pool, but you have no idea how deep it is. You know that the pool has a volume of 216 m3. You measured the dimensions of the pool and found that it is 15 m long and 6 m wide. A.

In nuclear fission mass is transformed into

An astronaut having a mass of 65kg is standing on the surface if the koon. The mass if the moon is 7.36 x 10^22kg and the radius is 1.74 x 10^6m what is the gravitational force the astronaut exerts on the moon

Which of the following is the most recent addition to the accepted model of the atom? A. Elections from a cloud around the nucleus. B. Neutrons orbit the nucleus along circular. C. Protons are located in the nucleus. D.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.