Extracting Metals in the Middle of the concept Series
Metals such as iron, zinc, lead, copper, etc., are in the middle of the reactivity series. These are moderately reactive metals and are usually present as sulphides or carbonate..
Extracting Metals in the Middle of the Activity Series
Metals such as iron, zinc, lead, copper, etc., are in the middle of the reactivity series. These are moderately reactive metals and are usually present as sulphides or carbonates. A metal is obtained from its ore by the processes of reduction or by electrolysis. In the reduction process,..
Fleming's Right Hand Rule
Stretch the forefinger, the middle finger and the thumb of the right hand, such that they are mutually perpendicular to each other. If forefinger indicates the direction of the magnetic field, the thumb indicates the direction of motion of the conductor, then, middle finger ind..
Hypermetropia
You must have seen middle aged people holding a book away from their eyes to read properl..
Solution:
Mass of the dog (m) = 20 kg Velocity (v) = 12 m/s Kinetic energy of the dog = 144..
Mass of the dog (m) = 20 kg Velocity (v) = 12 m/s Kinetic energy of the dog = 144..To show that weight of a body on moon is 1/6th its weight on Earth
Let m be the mass of a body on Earth. Its weight on Earth is given by the equati..
Let m be the mass of a body on Earth. Its weight on Earth is given by the equati..Second Equation of Motion
From equations (1) and (2) The first equation of motion is v = u + at. Substituting the value of v in equation (3), we get ..
From equations (1) and (2) The first equation of motion is v = u + at. Substituting the value of v in equation (3), we get ..Solution:
Mass of the bag of rice = 75 kg Work done = 4900 J Work done in lifting the bag of rice is stored in it as its potential energy. Therefore, Potential energy = mgh Height = 6.67..
Mass of the bag of rice = 75 kg Work done = 4900 J Work done in lifting the bag of rice is stored in it as its potential energy. Therefore, Potential energy = mgh Height = 6.67..Solution:
The work done in lifting coal is nothing but gravitational potential energy. Mass of coal = 10 5 kg Time = 1 hour = 60 x 60 s = 3600 s Power of the eng..
The work done in lifting coal is nothing but gravitational potential energy. Mass of coal = 10 5 kg Time = 1 hour = 60 x 60 s = 3600 s Power of the eng..Structure of Human Ear
Structure of Human Ear - Ears are extremely sensitive device with the help of which we are able to hear. The ear consists of three basic parts - the outer ear, the middle ear, and the inner ear. Each part of the ear has a specific role in the task of detecting and interpreting s..
Structure of Human Ear - Ears are extremely sensitive device with the help of which we are able to hear. The ear consists of three basic parts - the outer ear, the middle ear, and the inner ear. Each part of the ear has a specific role in the task of detecting and interpreting s..See what our Users say :
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