Answer:
Explanation:
We shall apply time dilution relation of relativity
t = 
t₀ = 1000 x .09987
= 99.87 days .
doubling time = 20 days
no of doubling time in 20 days ; n = 99.87 / 20
n = 4.9935
n = 
; n₀ is initial number , n is number finally .
= 2 x 2⁴°⁹⁹³⁵
= 64 approx .
The complete question is how much heat energy is delivered by the iron in 30 seconds.
Heat is given by IVt, Where I is the current in Amperes, V is the voltage, and t is the time in seconds,
Therefore;
Heat energy = 120 × 10 ×30
= 36000 joules or 36 kJ
Heat energy is measured in joules.
consider east-west direction along X-axis and north-south direction along Y-axis.
A = displacement along east direction = 5.5 i
B = displacement along north direction = 8 j
R = resultant displacement
Resultant displacement is given as
R = A + B
R = 5.5 i + 8 j
using Pythagorean theorem , magnitude of the resultant displacement is given as
|R| = sqrt(|A|² + |B|²) = sqrt((5.5)² + (8)²) = 9.7 blocks
The mass of the proton is:
and the mass of the antiproton is exactly the same, so the total mass of the two particles is
.
In the annihilation, all the mass of the two particles is converted into energy, and the amount of this energy is given by Einstein's equivalence between mass and energy:
where M is the mass converted into energy and c is the speed of light. In this example,
, therefore the energy released is
A)a gun moves backward while firing a bullet.
Explanation:
A gun moving backward while firing a bullet is a good example of newton's third law in action.
Newton's third law of motion states that "Action and reaction forces are equal and opposite in direction".
In shooting a gun, the bullet pulls forward by the action of the recoil down the barrel. This is the action force. The backward pull of the gun is the reactive force.
learn more:
Newton's laws brainly.com/question/11411375
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