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san4es73 [151]
3 years ago
10

Which scenario would result in a decrease in population size, or a negative population growth?

Physics
2 answers:
Anestetic [448]3 years ago
5 0
I’m pretty sure the answer is b
Luba_88 [7]3 years ago
5 0

Answer:

The correct answer is option B.

Explanation:

Using Formula:

Population growth = (birth rate + immigration) – (death rate + emigration)

A) Birth rate = 14

Immigration = 14

Death rate = 14

Emigration = 0

Population growth = (14 + 14) – (14 + 0)= 14

B) Birth rate = 10

Immigration = 28

Death rate = 0

Emigration = 40

Population growth = (10 + 28) – (0 + 40)= -2

C) Birth rate = 17

Immigration = 0

Death rate = 5

Emigration = 12

Population growth = (17 + 0) – (5 + 12)= 0

D) Birth rate = 25

Immigration = 0

Death rate = 4

Emigration = 19

Population growth = (25 + 0) – (4 + 19)= 2

Scenario (B) would result in a decrease in population size, or a negative population growth.

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just olya [345]

Answer:

3.75*10^{-13}  electrons

Explanation:

The total charge Q is the sum of the charge of the N electrons contained in the sphere:

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We solve to find N:

N=\frac{Q}{q_{e}}=\frac{-6 x 10^{-6}}{-1.6 x 10^{-19}}=3.75*10^{-13}

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A car of mass 1535 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is
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A car of mass 1535 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic. If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what was the initial speed of the car <u>20kmh</u>

<h3>What is collision ?</h3>

A collision in physics is any situation in which two or more bodies quickly exert forces on one another. Despite the fact that the most common usage of the word "collision" refers to situations in which two or more objects clash violently, the scientific usage of the word makes no such assumptions.

The following are a few instances of physical encounters that scientists might classify as collisions:

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To learn more about collision  from the given link:

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a child in a tree house uses a rope attached to a basket to lift a 26 nn dog upward through a distance of 5.0 mm into the house.
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Total work done is 0.13 Joules

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The sum of the displacement and the component of the applied force of the object in the displacement direction is the work done by a force.

According to the given information

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work done  = force × distance

We are given,

force  = 26 N

Distance = 0.0005 meter

hence ,

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Total work done is 0.13 Joules

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