1. because they have the same numbers of protons and electrons.
2. by the number of its protons and neutrons
3. yes, because the isotopes of an element also have the same number of electrons.
Answer: Torque= tangential force × radius of the pulley
Explanation:
Pulley is a simple machine which helps us to lift loads by applying the force in a convenient direction. It consists of a grooved wheel which is free to rotate about an axle passing through the center of the pulley.
For a pulley, the torque
tangential force × radius of the pulley
Pulleys can be used in combination also to achieve a desired output.
Answer: energy
Explanation: A wave is a disturbance that transfers energy as it travels through medium.
2nd egg experienced more impulse
Hope this helps! :)
Answer:
Maximum emf in the coil is 100 volt
Explanation:
We have given number of loops in the coil N = 50
Cross sectional area 
Angular speed is given 
Magnetic field is given 
We have to find the maximum emf in the coil
Maximum emf in the coil is given by 

So maximum emf induced in the coil is 100 volt