Explain the law of machines?

939

---

Explain what affect does electricity have on soil?

940

---

Explain the characteristics of dead stars?

908

---

Explain what is meant by 4th dimension?

890

---

Explain what is centrifugal force?

881

---

Explain how do fireworks turn into shapes like hearts and stars?

927

---

Explain what is neutral buoyancy?

925

---

Explain how much does automotive oil weigh?

884

---

Name the element which has the simplest absorption spectrum?

890

---

Tell me how are amps and watts related?

893

---

Explain the balanced field takeoff?

883

---

Explain what is larger the force the earth exerts on you or the force you exert on the earth?

903

---

Explain the cause of brownian motion?

893

---

Explain how do you convert from pascal to torr?

891

---

Explain the index of refraction of air?

919

---