Answer Posted / sanju

The pump becomes ineffective, when water has to be raised
through a height grater than 30 ft., because atmospheric
pressure can support a column upto 34 ft, of water at sea
level and this is only possible when the valves work most
efficiently.

Does gas have density?

895

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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?

948

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How do you find the refractive index of a liquid by using total internal reflection?

843

---

What is a thermal transformation?

1005

---

What is the loudness?

953

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What is black body and what are its characteristics? : quantum physics

886

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Consider earth's equator is covered with a measuring tape touching the ground such both the ends touch each other. if the tape is lifted 1 meter from the ground, what would be the distance between two ends of tape?

1947

---

the resolutions of a michelson interferometer operating with a light source of 640nm wavelenth is A.1280nm B.640nm C.80 nm D.1nm

3164

---

When a person whirls a rock on the end of a string and maintains it in uniform circular motion, the force exerted on the rock is most accurately referred to as?

1028

---

how the tube light glows even if the starter is removed

2804

---

By passing current through a wire wrapped around an iron rod, william sturgeon invented the?

930

---

What is fluorescence?

1036

---

What does the acronym am stands in radio transmission?

902

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What is the velocity of sound air?

1064

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Giraffe in Arabic means "the highest of all." The height of a giraffe is an average of 5 m, its mass is about 800 kg and hooves is an area of approximately 625 cm2. Using a straw from a material nedeformabil a giraffe trying to drink water from a lake, not to condescend. What is the ratio of the minimum pressure to be applied giraffe, mouth, at the end paiului to drink water and pressure of giraffe on the ground. The density of water. g = 10 m/s2

2073

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