Can a vector have a component equal to zero and still have a nonzero magnitude?

940

---

What large machine, which came on line in the summer of 2000 at the department of energys brookhaven national lab, is the world's highest energy ion collider:

955

---

What does gravitational force depend on?

997

---

For two objects separated by a distance d, if the mass of one of the objects is doubled, what will happen to the gravitational attraction between them?

1037

---

If a plane is in the air and there is a fly flying inside the plane does the plane get heavier when the fly lands?

1048

---

How much does two pints of water weigh when frozen?

984

---

What is the universal law of universal gravitation?

992

---

According to the standard model of particle physics, what is the name for the three leptons that have no electric charge and little if any mass?

993

---

assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?

951

---

How does laser printer works?

992

---

What are isotopes?

1157

---

Advantage of fixed pulley?

922

---

Physics short answer to two significant figures, what is the index of refraction of air?

964

---

All elements with an atomic number greater than what number are unstable?

1072

---

What is parallel force?

990

---