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Vladimir [108]
3 years ago
10

Why won't a chain reaction occur in natural uranium?

Physics
1 answer:
SOVA2 [1]3 years ago
5 0
<span>The density of fissionable uranium is not high enough. Basically more neutrons are absorbed than are produced so any chain reaction dies. hope this helps</span>
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Solve for v<br> when<br> d = 10 and<br> t=5
VashaNatasha [74]

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Explanation:

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3 years ago
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A person should power walk for minutes a day in order to benefit from this activity
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A person should power walk 30-45 min a day
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George Of The Jungle's wife, Mrs. Of The Jungle, has been pestering him to go on a diet. He should have listened. During his com
Elena L [17]

Answer:

112.06 kg - Thats heavy !

Explanation:

Let's do force balance here. Let the object of our interest be George. The forces acting on him are the tension in  the upward direction, his weight in the downward direction and the centrifugal force in the downward direction. Considering the upward and downward directions on the y-axis and f=given the fact that George doesn't move up or down, the forces are balanced along the y-axis. Hence doing force balance:

magnitude of forces upward =magnitude of forces downward

i.e., Tension(T) = Weight(mg) + Centrifugal force (mv²/r)

where: 'm' is the mass of George, g is the acceleration due to gravity (9.8 m/s²). v is the speed with which George moves (14.1 m/s) and r is the radius of the circle in which he's moving at the instant (Here since he's swinging on the rope, he moves in a circle with radius as the length of the rope and hence r=7.3m).

therefore, T = m (9.8 + (14.1)²/7.3) = 4150 N

Therefore, m = 112.06 kg

7 0
3 years ago
A projectile is fired with a velocity of 22 m/s at an angle of 25°. What is the vertical component of the velocity?
7nadin3 [17]

Answer:

Vertical component of velocity is 9.29 m/s

Explanation:

Given that,

Velocity of projection of a projectile, v = 22 m/s

It is fired at an angle of 22°

The horizontal component of velocity is v cosθ

The vertical component of velocity is v sinθ

So, vertical component is given by :

v_y=v\ sin(25)

v_y=22\ m/s\times\ sin(25)

v_y=9.29\ m/s

Hence, the vertical component of the velocity is 9.29 m/s

3 0
4 years ago
a voltmeter and an ammeter are used to respectively monitor the voltage across the current through the resistor
dusya [7]

When a current is established in a closed conducting loop , we use ammeter. Due to this resultant potential developed detected by voltmeter.

  1. When current flows through loop , it gets conducted.
  2. Due to this Electric field is generated . This happens due to induced magnetic field.
  3. The free electrons were at rest until current is there , still ammeter detects some deflection.
  4. This deflection is due to zero current.
  5. Due to magnetic field , current in coil changes.
  6. Mathematically, \alpha =-\frac{d\beta }{dt}
  7. The presence of conducting loop is not necessary for having electric field.

e= -\frac{d\beta }{dt}

e=-L\frac{d\beta }{dt}

i= i0 \left \{ {{y=0.63} \atop {x=t}} \right.

i=0.63 io

To know more about voltmeter-

<u>brainly.com/question/1511135</u>

#SPJ4

8 0
1 year ago
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