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3 years ago

Use the periodic table to complete this nuclear fission equation.

Physics

2 answers:

Anni [7]3 years ago

7 0

Answer:

A= 94

B= 36

C= Kr

Explanation:

Edge 2020

Yakvenalex [24]3 years ago

6 0

A = 94

B = 36

C = Kr or Krypton

Explanation:

The given nuclear reaction is written below:

²³⁵₉₂ U + ₀¹ n ⇒ ¹³⁹₅₆Ba + ᵃₙ C + 3¹₀n

Although mass and matter is not conserved in nuclear equations, the mass and atomic number must be conserved.

This implies that the mass number on both side of the equation be the same. The atomic number too must be the same.

Conserving mass number;

235 + 1 = 139 + a + 3(1)

a = 236 - 142 = 94

Conserving atomic number:

92 + 0 = 56 + n + 3(0)

92 = 56 + n

n = 36

A = 94

B = 36

C = Kr or Krypton

learn more:

Nuclear transmutation brainly.com/question/3433940

#learnwithBrainly

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Pertaining to simple machines and levers what changes when the fulcrum position is modified?

Inessa [10]

Explanation :

There are many types of simple machines i.e. lever, wedge, pulley, wheel and axle etc.

Fulcrum is the pivot point about which the lever turns. When the position of the fulcrum is shifted, the position of effort changes.

There are three classes of the lever as class 1, class 2 and class 3.

Class 1 includes seesaws and scissors.

class 2 includes wheelbarrow

class 3 includes tongs and tweezers.

7 0

3 years ago

14. The Achilles tendon inserts on the calcaneus (the heel bone) at a distance of 8 cm from the axis of the ankle joint. If the

Elena L [17]

Answer:

150 Nm

Explanation:

Unit conversion:

5 cm = 0.05 m

8 cm = 0.08 m

The torque generated by such force would be the product of the force by the muscles and the moment arm of that force.

T = FR

Where T is the torque (Nm), F = 3000 N is the force and R = 0.05 m is the moment arm

T = 3000*0.05 = 150 Nm

8 0

4 years ago

Read 2 more answers

What is the resultant displacement of the two vectors below

NeX [460]

Answer:

The resultant displacement is 5.8 cm, 31° South of the West axis ⇒ 4th

answer

Explanation:

A resultant vector is the combination of two or more single vectors

If the two vectors are perpendicular, then

The magnitude of the resultant vector = $\sqrt{x^{2}+y^{2}}$ ,where

x represents the horizontal vector and y represents the vertical vector

The direction of the resultant vector is $tan^{-1}\alpha$ , where α

is the angle between the horizontal vector and the resultant vector

Vector 1 is 5 cm due to West-axis

Vector 2 is 3 cm due to South-axis

We need to find the resultant displacement of them

The West and South are perpendicular

The West is the horizontal vector and South is the vertical vector

The magnitude of the resultant displacement s is:

$s=\sqrt{(5)^{2}+(3)^{2}}$

$s=\sqrt{25+9}$

$s=\sqrt{34}=5.8$

The direction of the resultant displacement s is:

$tan^{-1}\frac{3}{5}=31$ ° south of the west (between the west and

the resultant displacement)

The resultant displacement is 5.8 cm, 31° South of the West axis

6 0

3 years ago

How much larger is the acceleration with two people pushing on one side of the cart compared to only one person pushing the cart

il63 [147K]

As we said to the two people name A and the single person nameB.as every person make an acceleration 60ms2.so group A has more acceleration then group B. because in A there are two person so we add 60+60=120ms2. so group A can produce 120ms2 while groupB can produce 60ms2. i hope it will help you.

6 0

3 years ago

A spring with a spring constant of 4 N/m is stretched by Sarah's dog until extended by 2 m. How much elastic potential energy is

azamat

Hi there!

Recall the equation for spring potential energy:

$PE = \frac{1}{2}kx^2$

k = Spring constant (N/m)

x = extension of spring from equilibrium (m)

PE = Potential Energy (J)

Plug in the given values:

$PE = \frac{1}{2}(4)(2^2) = \boxed{8 J}$

8 0

3 years ago