Answer:
After 5 half life the amount remains as 3.125 g
Explanation:
After each half life the quantity becomes half
so we know that initial amount is 100 g
so after 1st half life amount is half so it left as
m = 50 g
now after 2nd half life amount again becomes half
m = 25 g
after 3rd half life it is again half so remaining amount is
m = 12.5 g
after 4th half life the amount becomes half again
m = 6.25 g
Now after 5th half life the amount remains as
m = 3.125 g
The magnitude of the magnetic force per meter (in nm) exerted on each wire is 3.74 * 10^-3 N/m or 3.74v 8 10 ^6 N/nm.
Magnetic force, enchantment or repulsion that arises between electrically charged debris due to their movement. it's miles the basic pressure accountable for such outcomes as the movement of electric cars and the appeal of magnets for iron.
Magnetic pressure is a compass, a motor, the magnets that keep stuff at the fridge, educate tracks, and new curler coasters. All transferring prices supply upward push to a magnetic subject and the costs that flow thru its regions, revel in a force.
Two items containing charge with the equal path of motion have a magnetic enchantment pressure between them. in addition, gadgets with price transferring in contrary instructions have a repulsive force between them. In our article on magnetic fields we found out how transferring rate surrounds itself with a magnetic field.
explanation is given in the image below.
Force per unit length between two wires ,
F/l = μοI₁I₂/2πd
= 4π * 10^-7 *67 *67 / 2π (24 * 10^-2)
= 2 * 10 ^-7 * 67 *67/24 *10 ^ -2
= 4489/12 * 10^-5
= 3.74 * 10 ^-3 N/m
Learn more about magnetic force here:-brainly.com/question/2279150
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You could talk about how the planets spin around the sun, how the universe has galaxies, and we are in the milky way. Blue shift and red shift,etc?
Answer:
Explanation:
Let the initial velocity of small block be v .
by applying conservation of momentum we can find velocity of common mass
25 v = 75 V , V is velocity of common mass after collision.
V = v / 3
For reaching the height we shall apply conservation of mechanical energy
1/2 m v² = mgh
1/2 x 75 x V² = 75 x g x 10
V² = 2g x 10
v² / 9 = 2 x 9.8 x 10
v² = 9 x 2 x 9.8 x 10
v = 42 m /s
small block must have velocity of 42 m /s .
Impulse by small block on large block
= change in momentum of large block
= 75 x V
= 75 x 42 / 3
= 1050 Ns.