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Bumek [7]
3 years ago
14

Nuclear Reactions: Please answer numbers 4,5,6.

Physics
1 answer:
Vikentia [17]3 years ago
8 0

Answer:

4. ¹₁H + ¹³₆C —> ¹⁴₇N + γ

5. ¹₀n + ¹⁰₅B —> ⁷₃Li + ⁴₂He

6. ⁴₂He + ¹⁴₇N —> ¹⁷₈O + ¹₁H

Explanation:

4. ¹₁H + ¹³₆C —> ¹⁴₇N + __

Let ᵇₐX be the unknown.

Thus, the equation becomes:

¹₁H + ¹³₆C —> ¹⁴₇N + ᵇₐX

Next, we shall determine b, a and X. This is illustrated below:

For b:

1 + 13 = 14 + b

14 = 14 + b

Collect like terms

b = 14 – 14

b = 0

For a:

1 + 6 = 7 + a

7 = 7 + a

Collect like terms

a = 7 – 7

a = 0

Therefore,

ᵇₐX => ⁰₀X => γ

Thus, the balanced equation is

¹₁H + ¹³₆C —> ¹⁴₇N + γ

5. ¹₀n + ¹⁰₅B —> __ + ⁴₂He

Let ˣᵧA be the unknown.

Thus, the equation becomes:

¹₀n + ¹⁰₅B —> ˣᵧA + ⁴₂He

Next, we shall determine x, y and A. This can be obtained as follow:

For x:

1 + 10 = x + 4

11 = x + 4

Collect like terms

x = 11 – 4

x = 7

For y:

0 + 5 = y + 2

5 = y + 2

Collect like terms

y = 5 – 2

y = 3

Therefore,

ˣᵧA =>⁷₃A => ⁷₃Li

Thus, the balanced equation is:

¹₀n + ¹⁰₅B —> ⁷₃Li + ⁴₂He

6. ⁴₂He + ¹⁴₇N —> __ + ¹₁H

Let ᶜₑG be the unknown.

Thus, the equation becomes:

⁴₂He + ¹⁴₇N —> ᶜₑG + ¹₁H

Next, we shall determine c, e and G. This can be obtained as follow:

For c:

4 + 14 = c + 1

18 = c + 1

Collect like terms

c = 18 – 1

c = 17

For e:

2 + 7 = e + 1

9 = e + 1

Collect like terms

e = 9 – 1

e = 8

Therefore,

ᶜₑG => ¹⁷₈G => ¹⁷₈O

Thus, the balanced equation is:

⁴₂He + ¹⁴₇N —> ¹⁷₈O + ¹₁H

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IgorC [24]

Answer:

A. 2.41 s.

B. 24.3 m/s.

Explanation:

vf = vi + 2a*t

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a = 9.8 m/s^2

A.

ti = 1.5/(9.8 * 2)

= 0.08 s

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30.115 = 1.5*to + 4.9*to^2

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B.

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Using,

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= 24.3 m/s.

7 0
4 years ago
Two 120 Ω resistors are connected in parallel across a supply voltage of 10 VDC. What's the current in this circuit?
german

As we know that here two 120 ohm resistors are connected in parallel with the battery of voltage 10 V DC

now here we will use Ohm's law

V = i R

so here we can use above equation to find the current in each resistor

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8 0
3 years ago
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Briefly explain the two postulates of relativity, how they differed from classical physics, and why Einstein was led to propose
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Explanation:

The two postulates of special theory of relativity

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Postulate 2: The velocity of light is remains same in each ans every frame of reference and independent of relativity.

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Thanks

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What is the formula that can be used to calculate the mechanical advantage of a wedge?
Olegator [25]
A wedge is one of the six simple machines. It is characterized by an object that has a defined width at one side that slopes to a point at the other end. This simple machines allows a force that is applied over a large area to be concentrated upon an edge or smaller area, such as a knife. This concentration of force is the mechanical advantage (MA) the wedge provides. Each of the six simple machines offers a mechanical advantage, and it can be quickly calculated for a wedge.SCIENCING
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Home » Physics
How to Calculate the Mechanical Advantage of a Wedge
By Thomas Reichert; Updated April 24, 2017
Here's a Calculator to Help You
1 2 3 4 5 6 7 8 9 0
+ - x /
. = C
The blade of a knife is an example of a wedge knife image by Horticulture from Fotolia.com
A wedge is one of the six simple machines. It is characterized by an object that has a defined width at one side that slopes to a point at the other end. This simple machines allows a force that is applied over a large area to be concentrated upon an edge or smaller area, such as a knife. This concentration of force is the mechanical advantage (MA) the wedge provides. Each of the six simple machines offers a mechanical advantage, and it can be quickly calculated for a wedge.



Find the length of the sloped surface of the wedge. For a real-world object, this can be found in by measuring with a tape measure or ruler. In the case of a math problem, this value is sometimes given. If it is not, it can be calculated using the Pythagorean Theorem (a^2)+(b^2)=(c^2) or the law of cosines (cos(a)/A)=(cos(b)/B)=(cos(c)/C)

Find the width of the large end of the wedge. This too can be found either by direct measurement or by mathematical calculation. Divide the slope length by the width of the wedge to find the mechanical advantage. MA=(Slope Length)/(Width)

TIP
Make sure that all lengths are in the same unit of measure.

7 0
3 years ago
Two blocks are connected by a massless rope over a massless, frictionless pulley, as shown in the figure. The mass of block 2 is
Agata [3.3K]

The mass of block 1 is 1.30176 kg.

<h3>What is tension in physics?</h3>

A tension force in physics is a force developed in a rope, string, or cable when stretched under an applied force.

Tension is acted along the length of the rope/cable in a direction that is opposite to the force applied on it.

According to the question,

Mass of block 2= 11.3 kg

Kinetic friction μ=0.200

The component of the weight in the direction of the incline

W = m₂gsinθ

T = F_{f}  - W........(1)

When the force of friction

F_{f} = μ_kN

F_{f} = μ_k(m₂gcosθ)

Here , Put the value in equation 1

T = m₂gcos 31.5° - μ_km₂gcos 31.5°

We know that ,

T - m₁g = 0

T = m₁g

So,

m₁g = m₂g (Sin 31.5° - 0.200 x cos 31.5°)

m₁ = 11.3 x (0.0840 - 0.2 x 0.996)

m₁ = 11.3 x (0.1152)

m₁ = 1.30176 kg

Hence, the mass of block 1 is 1.30176 kg.

Learn more about tension here:brainly.com/question/14294135

#SPJ1

7 0
2 years ago
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