1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
A skier uses a pair of poles to push himself down a ski slope. Which of the following correctly states when the skier has the mo
Umnica [9.8K]
A or D

Explanation:
Potential energy is when it isn’t moving. I’m only in 6th grade but, I hope this helps!
4 0
3 years ago
An oil slick on water is 120 nm thick and illuminated by white light incident perpendicular to its surface. What color does the
gregori [183]

Answer:

\lambda = 672 nm

so this is nearly red colour light

Explanation:

As we know that the interference of light from reflected light then the path difference is given as

\Delta x = 2\mu t + \frac{\lambda}{2}

now we know that for constructive interference of light the path difference is given as

\Delta x = n\lambda

so we will have

2\mu t + \frac{\lambda}{2} = N\lambda

so we will have

4\mu t = \lambda

\lambda = 2(1.40)(120nm)

\lambda = 672 nm

so this is nearly red colour light

8 0
3 years ago
A 0.5 kg mass on a spring undergoes simple harmonic motion with a total mechanical energy of 12 J. If the oscillation amplitude
Darya [45]

Answer:

The frequency of the oscillation is 2.45 Hz.

Explanation:

Given;

mass of the spring, m = 0.5 kg

total mechanical energy of the spring, E = 12 J

Determine the spring constant, k as follows;

E = ¹/₂kA²

kA² = 2E

k = (2E) / (A²)

k = (2 x 12) / (0.45²)

k = 118.519 N/m

Determine the angular frequency, ω;

\omega = \sqrt{\frac{k}{m} } \\\\\omega =  \sqrt{\frac{118.519}{0.5} } \\\\\omega = 15.396 \ rad/s

Determine the frequency of the oscillation;

ω = 2πf

f = (ω) / (2π)

f = (15.396) / (2π)

f = 2.45 Hz

Therefore, the frequency of the oscillation is 2.45 Hz.

8 0
2 years ago
What are
koban [17]
Igfgccdfggjjkhgdsfvvjjjg
4 0
2 years ago
Q1: A cyclist brakes to a stop. His thinking distance was 1m and his braking distance was 3m. What was his overall stopping dist
weeeeeb [17]

Answer:

1.) 4m

2.) 37 m

3.) 62m

4.) 2.5 s

Explanation:

1.) Given that the

Thinking distance = 1m

Breaking distance = 3m

Stopping distance = breaking distance + thinking distance

Stopping distance = 1 + 3 = 4m

2.) Given that the

Stopping distance = 52 m

Thinking distance = 15m

Breaking distance = 52 - 15 = 37m

3.) The stopping distance = 76m

Thinking distance = 14m

Breaking distance = 76 - 14 = 62m

It take the brakes 62m to slow the car down to a stop.

4.) Given that a lorry travels 28m when stopping from a speed of 4m/s. If its braking distance was 18m, what was the driver’s reaction time?

Thinking = stopping distance - braking distance

Thinking distance = 28 - 18 = 10m

Speed = distance/time

4 = 10/reaction time

Reaction time = 10/4

Reaction time = 2.5 s

5.) Question incomplete

5 0
3 years ago
Other questions:
  • Work is the product of ___<br> _ and an object's displacement.
    15·1 answer
  • Conventionally, the field strength around a charged object is the direction of the force acting on a .
    5·2 answers
  • A uniform brick of length 25 m is placed over
    11·1 answer
  • cell membranes contain channels that allow K + ions to leak out consider channel that has diameter of nm and length of nm if cha
    7·1 answer
  • I need help please I will give points
    9·1 answer
  • Question 13 of 20
    8·2 answers
  • A 2.0-kg pistol fires a 1.0-g bullet with a muzzle speed of 1000 m/s. The bullet then strikes a 10-kg wooden block resting on a
    13·1 answer
  • The speed of light can be measured by;
    8·1 answer
  • Ls -2 a solution of 4x +3= -5?.<br>​
    8·1 answer
  • What unit is used for speed?<br> 1. m/s<br> 2. S<br> 3. m/s2<br> 4. m
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!