I'm pretty sure that the only right answer is <span>B) a north-seeking pole of unit strength with a south-seeking pole of the same strength. Because there are no single magnetic poles.</span>
Answer:
Explanation:
Kinetic Energy = 0.5(Mass)(Velocity2)
Kinetic energy= 0.5 × 10kg × (50m/s)2
Kinetic Energy = 5kg × 2500m/s
Kinetic energy = 125000 J ( Ans)
Answer:
= Approximately 6
Explanation:
<u>What we need to know:</u>
1. Given that this is a parallel circuit, each pathway will receive the full voltage from the source. Therefore, each pathway will receive 17V.
2. The current (I) stays the same for all loads in series. Therefore, I2 and I3 are equal since they are connected in series.
3. Ohm's law states that Voltage = Current × Resistance (V=IR)(I=V/R)(R=V/I)
<u>1) Calculate the current for the path containing R2 and R3</u>
Because the current running through this path is A, then I2 is A.
<u>2) Use Ohm's Law by plugging in I2 and R2</u>
(approximate)
Therefore, V2 is approximately 6V.
I hope this helps!
The force between two system is inversely proportional to the square the distance between them. The indirect proportion between these items may be expressed as,
F = k / d²
where k is the constant proportionality. Substituting the known values,
0.68 N = k / (1 m)² ; k = 0.68
For the second case,
F = 0.68 / (0.5 m)² = 2.72 N
Thus, the answer is 2.72 N.
After one half-life, 8 g of radioactive isotope will remain in the sample.
<h3>What is radioactivity?</h3>
The act of producing radiation spontaneously is known as radioactivity. This is accomplished by an unstable atomic nucleus that want to give up some energy in order to move to a more stable form.
The following formula is used to compute the number of half lives elapsed:
Hence,8 gram of radioactive isotope remains in the sample after 1 half-life.
To learn more about the radioactivity, refer to the link;
brainly.com/question/1770619
#SPJ1