How many protons does a neutral atom of oxygen-18 have

Astronauts on the international space station feel weightless because

How fast would 0.145 kg baseball have to go to have a kinetic energy of 88.7 J?

What is the period of vibration of a wave that vibrates 3 times each second? 3 seconds 0.3 seconds 0.03 seconds 30 seconds

A box is being pushed but two stellar science students, one on each side of the box. Peter is pushing box with a force of 10 N to the left. Josh is pushing the box with a force of 15 N to the right.

The gravitational field strength on Mars is 3.7 N/kg. Kai has a mass of 55 kg. What would Kai weigh on Mars? Give your answer to 1 decimal place.

In 1999, what percentage of 36-month-old toddlers had been toilet trained? 20 percent 40 percent 60 percent 80 percent

Tarzan, in one tree, sights jane in another tree. he grabs the end of a vine with length 20 m that makes an angle of 45â with the vertical, steps off his tree limb, and swings down and then up to jane’s open arms.

Applying the Law of Conservation of Momentum Train car A is at rest when it is hit by train car B. The two cars, which have the same mass, are stuck together and move off after the collision.

Each of the objects above is composed of identical thin sticks of uniformly distributed mass 5.51 kg and length 0.737 m.

A rockets thruster provides a 300 N force to the right. Air resistance causes a 130 N to the left what is the net force?