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saul85 [17]
2 years ago
5

The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic rat

io for a cross between plants with red (Rr) flowers and red (Rr) flowers?
4 red : 0 white
3 red : 1 white
2 red : 2 white
1 red : 1 white
Physics
1 answer:
Neko [114]2 years ago
3 0

Answer:

1.4 red : 0 white

Explanation:

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A charged object traveling 7 m in a uniform electric field of 5 N/C experiences a 4 J increase in Kinetic Energy.
Travka [436]

To solve this problem it is necessary to apply the principles of conservation of Energy in order to obtain the final work done.

The electric field in terms of the Force can be expressed as

E = \frac{F}{q} \rightarrow F=Eq

Where,

F = Force

E= Electric Field

q = Charge

Puesto que el trabajo realizado es equivalente al cambio en la energía cinetica entonces tenemos que

KE = W

KE = F*d

In the First Case,

4 = (qE)d\\q = \frac{4}{Ed}\\q = \frac{4}{5*7}\\q = 0.1142C

In Second Case,

KE = q E'd

KE = (0.1142)(40)(7)

KE = 31.976J

The total energy change would be subject to,

\Delta KE = 31.976-4

\Delta KE = 27.976J

Therefore the Kinetic Energy change of the charged object is 27.976J

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3 years ago
What is an invasive species plant??
lianna [129]
Japanese Honeysuckle
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He instruction booklet for your pressure cooker indicates that its highest setting is 11.1 psi . you know that standard atmosphe
blagie [28]

Given that,

Atmospheric Pressure = 14.7 psi

Cooking Pressure = 14.7 +11.1 = 25.8 psi

Take, Atmospheric Temperature = 25 °C

Cooking Temperature = ??

Since, we know that Gas equation is given by:

PV = nRT

or

P ∝ T

P1 / T1 = P2 / T2

14.7/ 25 = 25.8/ T2

T2 = 25*25.8/14.7

T2 = 43.87 °C

The cooking pressure will be 43.87 °C.

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3 years ago
During physical activity of moderate intensity, your heart will beat at a percentage of its maximum rate. What is the target hea
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In loading a lorry, a man lifts boxes each of weight 100N through a height of 1.5m.
liq [111]

Answer:

The amount of work done in order to lift the box is 150\ Joule

Explanation:

Given the weight of each box is 100N

And the man lifts boxes at a height of 1.5m

We need to find the amount of work done.

The amount of work done is the product of applied force F that causes the displacement d.

In our problem force is 100N and displacement is  1.5m.

Now, work done

=force\times displacement\\=100\times1.5\\=150\ Joule

So, the amount of work done in order to lift the box is 150\ Joule

5 0
3 years ago
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