What are some of the sub-disciplines within the field of geology?

8443

Which particles/ rays do radioactive substances emit?

941

What is the Unit to measure pressure?

950

What is the magnetic effect of the earth?

824

In beta minus emission, the number of nucleons in the atom?

857

An ice-box is built of wood 1.75 cm thick, lined with cork 3 cm thick. If in the steady state the temperature of the inner surface of the cork is 0 ºC and that of the outer surface of wood is 12 ºC, what is the temperature of the wood-cork interface? The thermal conductivities of wood and cork are 0.2 W/m-K and 0.04 W/m-K respectively

2622

A solar collection has been installed to heat water. A large water tank has a volume of 5.0 x 105 cm3. The area of the solar collectors is 8m2. (2 meters by 3 meters). If the water in the tank starts out with a temperature of 30°C in the morning, what is its temperature in the evening after the sun has set?

1941

What is photometry?

907

What is frequncy?

985

What would happen if a disk one light second in circumference were to spin at 60 rpm?

927

Explain reflection of light?

918

What is the difference between collector & emitter of transistor, even though material used for both same?

871

Explain the domestic consumption of electricity is calculated in?

910

What is the shadows?

915

Explain what is the heterogenous?

869