Explain reaction is exothermic and entropy , A chemical reaction is known t...

A chemical reaction is known to occur spontaneously under standard conditions. Which of the following statements is/are true (more than one answer may be selected): A    The to

Evaluate the final angular speed of the carousel, As seen from above, a pl...

As seen from above, a playground carousel is rotating counterclockwise about its center on frictionless bearings. A person standing still on the ground grabs onto one of the bars o

Forces and nature,

What are the conditions to achieve the laser action, Q. What are the condit...

Q. What are the conditions to achieve the laser action? Conditions to achieve laser action (i) There should be an inverted population that is more atoms in the excited

Electrycity and devices, assignment

assignment

Explain metallurgical industry, Metallurgical Industry:- Variable speed...

Metallurgical Industry:- Variable speed DC drives are being use usually now variable frequency AC drives using squirrel cage motors

Magnetic field, how to study the earth''s magnetic field using a tangent ga...

how to study the earth''s magnetic field using a tangent galvanometer?

Conservation laws, conservation laws A law that states that, in a clos...

conservation laws A law that states that, in a closed system, the whole quantity of something will not enhance or reduce, but exactly remain the same; i.e., its rate of altera

Friction, is pulling force easy or pushing

is pulling force easy or pushing

Thermal equillibrium, a column of water contains fine metal particles of ra...

a column of water contains fine metal particles of radius 2*E(-8) m, which are in thermal equillibrium at 298 K. if there are 1000 particles per unit volume at a given height,how m