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
forsale [732]
3 years ago
11

39

Physics
1 answer:
Wittaler [7]3 years ago
5 0

Answer:

The correct answer is - 47 years.

Explanation:

The doubling time of the population growth depends on the rate of population growth. The formula for the calculation of the doubling time is :

time (t) = log(N/N0)/r (time)

here,

N0 (initial population) = The population at time t = 0.

N (future population) = The population at time t.

r (rate) = The rate of population change as a function of t

by the formula

t = log (2/1)/0.015

t =  46.666 years or 47 years approx.

You might be interested in
What type of wave is the highest on the electromagnetic spectrum?
san4es73 [151]
Gamma waves are on the far right
8 0
3 years ago
An unknown material has a mass
atroni [7]

Answer: 1896.55J/kg°C

Explanation:

The quantity of Heat Energy (Q) required to heat a material depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

Q = 1320 joules

Mass of material = 5.61kg

C = ? (let unknown value be Z)

Φ = 0.124°C

Then, Q = MCΦ

1320J = 5.61kg x Z x 0.124°C

1320J = 0.696kg°C x Z

Z = (1320J / 0.696kg°C)

Z = 1896.55 J/kg°C

Thus, the specific heat of the material is 1896.55J/kg°C

4 0
4 years ago
Read 2 more answers
A scientist wants to learn about Earth's oceans. Which of the following
ahrayia [7]
Hydrosphere - all the waters on the earth’s surface.
8 0
3 years ago
A 4.8 mF capacitor in series with a 500 Ω resistor is connected, by a switch, to a 12 V battery. The current through the resisto
ad-work [718]

Answer:

Current will be 81.7 mA

Which is not given in bellow option

Explanation:

We have given  capacitance C=4.8mF=4.8\times 10^{-3}F

Resistance R = 500 ohm

Voltage V = 12 volt

We know that time constant of RC circuit of RC circuit is given by

\tau =RC=500\times 4.8\times 10^{-3}=2.4sec

Time is given as t = 1 sec

We know that current in RC circuit is given by

i=\frac{v}{R}(1-e^{\frac{-t}{\tau }})

So current i=\frac{12}{500}(1-e^{\frac{-1}{2.4 }})=0.00817A=81.7mA

Which is not given in the following option

3 0
3 years ago
Read 2 more answers
Where are the magnetic<br> fields<br> strongest near a bar magnet?
mixer [17]
<h2>ANSWER:</h2>
  • <u>The north pole</u>

  • The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.

CarryOnLearning(◍•ᴗ•◍)

6 0
3 years ago
Other questions:
  • An inductor of 299 mH with a resistance of 51 Ω is connected to a power supply with a maximum voltage of 227 V and a frequency o
    9·1 answer
  • Sally and Maria hypothesized that earthworms lived only in dark, damp places. They measured a one-meter square in a shady spot n
    8·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    7·1 answer
  • The work done in moving an electron through the 3 ohm resistor is
    15·1 answer
  • Help plz im lost
    7·1 answer
  • Write short note on fulcrum​
    12·1 answer
  • 4. Increasing the mass of this freight train will
    12·1 answer
  • Mention and explain Isaac Newton's three equations of motion and explain them​
    14·1 answer
  • The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true abou
    13·1 answer
  • Aball is thrown horizontaly from the top of a building with an initial velocity of 15 meters per second. At the same instant, a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!