Answer:
A WAVE IS ANY DISTURBANCE THAT TRANSMITS ENERGY THROUGH MATTER OR SPACE. ... HOWEVER, THE MATERIAL THROUGH WHICH THE WAVE TRAVELS DOES NOT MOVE WITH THE ENERGY. A MEDIUM IS A SUBSTANCE THROUGH WHICH A WAVE CAN TRAVEL. A MEDIUM CAN BE A SOLID, A LIQUID, OR A GAS.
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Explanation:
Answer:
Ratio of parent to daughter nuclei is 16 : 1
OR
1 : 0.0625
Explanation:
The half of a radioisotope is the time it will take half of the original mass to decay.
Let the original mass be y
After the first half life, the new mass will be y/2
After the second half decay, the new mass will be y/4
After the third half decay, the new mass will be y/8
After the fourth half life decay, the new mass will be y/16.
Thus the ratio of the mother nucleus to the daughter nucleus will be y : y/16
Multiply the ratio through by 16
= 16y : y
= 16 : 1
A electron has a negative charge. They represent energy levels.
An example of the use of an electron is the spherical shell. The larger the shell, the more energy the electron has.
Answer:
Explanation:
My speed after the interaction will depend upon the impulse the ball will make on me . Now impulse can be expressed as follows
Impulse = change in momentum
change in momentum in the ball will be maximum when the ball bounces back with the same velocity which can be shown as follows
change in momentum = mv - ( - mv ) = 2mv
So when ball is bounced back with same velocity , it suffers greatest impulse from my hand . In return , it reacts with the same impulse on my hand pushing me with greatest impulse according to third law of motion. this maximizes my speed after the interaction.
Answer:
R=2F
Explanation:
As the forces are in same direction so the resultant force will be:
R=F+F
R=2F
