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elena55 [62]
3 years ago
15

You are conducting a cross using Drosophila melanogaster. The results of your cross indicate that the recombination frequency is

very high. How do you feel about the accuracy of your map unit calculations based on this cross?
Physics
1 answer:
Lapatulllka [165]3 years ago
4 0

Answer: Explained below

Explanation: The calculations are not very accurate. The distance would be underestimated because double crossovers are not observed.

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A house brick has a volume of 1900 cm³ and a weight in air of 80N.What is its apparent weight in water?The density of water is 1
Shtirlitz [24]

Answer:

61 N

Explanation:

We'll begin by calculating the mass of the brick when placed in water. This can be obtained as follow:

Volume of brick = 1900 cm³

Density of water = 1 g/cm³

Mass of brick in water =…?

Density = mass / volume

1 = mass of brick in water / 1900

Cross multiply

Mass of brick in water = 1 × 1900

Mass of brick in water = 1900 g

Next, we shall convert 1900 g to Kg.

1000 g = 1 Kg

Therefore,

1900 g = 1900 g × 1 Kg / 1000 g

1900 g = 1.9 Kg

Next, we shall determine the weight in water. This can be obtained as follow:

Mass (m) = 1.9 Kg

Acceleration due to gravity (g) = 10 m/s²

Weight (W) =?

W = m × g

W = 1.9 × 10

W = 19 N

Thus, the weight of the brick in water is 19 N.

Finally, we shall determine the apparent weight of the brick in water. This can be obtained as follow:

Weight in air = 80 N

Weight in water = 19 N

Apparent weight =?

Apparent weight = weight in air – weight in water

Apparent weight = 80 – 19

Apparent weight = 61 N

3 0
3 years ago
Aiden has basketball practice after school on Mondays, Wednesdays, and Fridays. He has practiced really hard this year to get be
Jlenok [28]
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6 0
2 years ago
What happens to the gravitational force between two masses when the distance between the masses is doubled?
vovangra [49]

Answer:

It decreases by a factor of 4

Explanation:

The gravitational force between two masses is given by

F=\frac{Gm_1 m_2}{r^2}

where

G is the gravitational constant

m1, m2 are the two masses

r is the separation between the two masses

In this problem, the distance between the masses is doubled, so

r' = 2r

Substituting into the equation, we see that the new force is

F'=\frac{Gm_1 m_2}{(2r)^2}=\frac{1}{4}\frac{Gm_1m_2}{r^2})\frac{F}{4}

So, the force decreases by a factor of 4.

6 0
3 years ago
A 15 N force is applied on a car which cover a distance 30 metre in 10 second .Calculate the work done​
Zolol [24]

Answer

The answer is 20N

Explanation:

3 0
2 years ago
A screw is a type of simple machine. If we look closely at a screw, we see that it is really a _________ wrapped around a centra
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Is is really an inclined plane 
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