Explain how is energy transformed in windmills?

840

---

What is fusion?

883

---

What is the rest mass energy of an electron?

882

---

Tell me why is heavy water used as a moderator?

847

---

Tell me how asteroids are formed?

924

---

Explain what is nucleus?

785

---

Explain what is relation between magnetic and electricity and why?

887

---

Explain what is optical medium?

886

---

Explain the working of basic rubber ink filler

884

---

Explain what is the rectilinear propagation of light?

914

---

Explain what is photometry?

878

---

Tell me when taken to the top of a mountain, a clock will go fast or go slow or no change or stop?

859

---

Explain what is h1n1?

908

---

Explain what is the shadows?

899

---

Explain what is the heterogenous?

871

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