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
Maksim231197 [3]
4 years ago
10

What is definition of population?

Physics
1 answer:
Oksanka [162]4 years ago
5 0
All the inhabitants of a particular place or town, area or country
You might be interested in
which statement below is FALSE? A Gravity acts on any object with mass. B The closer objects are, the stronger the gravitational
GenaCL600 [577]

Answer:

Explanation:

5 0
3 years ago
What is the main way in which heat transfer occurs in liquids and gases?
Westkost [7]

Answer:

convection

Explanation:

By the actual movement of molecules

4 0
3 years ago
The coordinates of a bird flying in the xy plane are given by x(t)=αt and y(t)=3.0m−βt2, where α=2.4m/s and β=1.2m/s2. Calculate
yuradex [85]
     The derivative of the function space as a function of time is equal to a function of speed as a function of time.

x(t)=2.4t \\  \frac{x(t)}{t}=t \\ v_{x}(t)=t \\  \\ y(t)=3-1.2\times t^2 \\  \frac{y(t)}{t}=1.2\times2t \\ v_{y}(t)=2.4t
   
     The velocity vector is given by the vector sum of the velocities of  both axes.

v_{R}^2(t)=v_{x}^2(t)+v_{y}^2(t) \\ v_{R}^2(t)=(t)^2+(2.4t)^2 \\ \boxed {v_R(t)=2.6t}

If you notice any mistake in my english, please let me know, because I am not native.

4 0
4 years ago
Read 2 more answers
An electric current of 200 A is passed through a stainless steel wire having a radius R of 0.001268 m. The wire is L = 0.91 m lo
denis23 [38]

Answer:

The value is   T_m  =  435.2 \  K

Explanation:

From the question we are told that  

   The  current is  I  =  200 \ A

   The radius is  R =  0.001268 \  m

   The  length of the wire is  L  =  0.91 \  m\

    The  resistance is  R  =  0.126 \  \Omega

    The  outer surface temperature is  T _o  =  422.1 \  K

    The average thermal conductivity is  \sigma  =  22.5 W/mK

   

Generally the heat generated in the stainless steel wire is mathematically represented as  

    Q =  \frac{Power}{ \pi r^2L}

     Q =  \frac{I^2 R}{ \pi r^2L}

=>   Q =  \frac{200^2 * 0.126}{3.142 *  (0.001268)^2 * 0.91}

=>   Q =  1.096*10^{9}\  W/m^3

Generally the middle temperature is mathematically represented as

      T_m  =  T_o  + \frac{Q * r^2 }{ 6  * \sigma }

       T_m  =  422.1  +  \frac{1.096*10^{-9} * 0.001268^2}{6 * 22.5}

       T_m  =  435.2 \  K

4 0
3 years ago
4. How long would it take for a water balloon to fall 39 m if we dropped it starting from rest down an
Paraphin [41]

Answer:

Around 2.8212 sec

Explanation:

Given the eqn x=1/2at^2+vot

your vo=0

39=1/2(-9.8)t^2

=7.95=t^2

=2.82sec

8 0
3 years ago
Other questions:
  • A block of inertia m is placed on an inclined plane that makes an angle θ with the horizontal. The block is given a shove direct
    9·1 answer
  • How much work, in Joules. is done when a pressure of 95.000 Pa changes a volume from 15 ma to 43 m2?
    11·1 answer
  • . Water is flowing at 12m/s in a horizontal pipe under a pressure of 600kpa radius 2cm. a. What is the speed of the water on the
    7·1 answer
  • Where would you find plants with stems that can store large amounts of water
    9·2 answers
  • An accelerometer is a device that uses the extension of a spring to measure acceleration in terms of Earth's gravitational accel
    14·1 answer
  • Scientists refer to half of the planets as inner planets because they are relatively close to the Sun. They refer to the other h
    10·1 answer
  • What is the ratio of the intensities and amplitudes of an earthquake P wave passing through the Earth and detected at two points
    6·1 answer
  • If an atom has 35 protons in the nucleus how many electrons will It have orbiting the nucleus ?
    6·1 answer
  • A hydrogen atom that has lost its electron is moving east in aregion where the magnetic field is directed from south to north. I
    5·1 answer
  • What is lighting and lighting conductor​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!