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
andrew-mc [135]
3 years ago
12

Escribe verdadero o falso :

Physics
1 answer:
Oduvanchick [21]3 years ago
8 0

By defining kinematics and derivative relations we can find which statements are true or false:

         a) False. The derivative is the instantaneous velocity.

        b) True. The second drift is the instantaneous acceleration.

        c) False the derivative is

        d) False the derivative is

a) The velocity is defined with the variation of the position with respect to time.

           v= \frac{dx}{dt}  

Wher x is the position and t the time.

In the change of the average velocity is the average value of the velocity in an interval

           v = \frac{v_f - v_o}{t}  

We can see that the derivative is the speed in a very small timet, that is, the speed instantaneous. Therefore the statement is False.

 

The prime derivative of the position is the instantaneous velocity, not the average velocity.

b) Acceleration is defined as the change in position with respect to time..

           a = \frac{dv}{dt}  

Let's use the chain rule.

          a = \frac{d}{dt} \frac{dx}{dt}  

          a = \frac{d^2 x}{dt^2}  

Therefore the second  derivative of the position is the instantaneous acceleration.

The statement is True.

Questions c and d ask the derivative of a function

             f (x) = 2 x aⁿ

c) derivative with respect  of x

            \frac{df}{dx} = 2 a^n

The answer is False.

d) derivative with respect to a.

            \frac{df}{da} = 2n \ x a^{n-1}

Answer d is false

In conclusion using the definition of kinematics and derivative relations we can find which statements are true.

        a) False. The derivative is the instantaneous velocity.

        b) True. The second drift is the instantaneous acceleration.

        c) False the derivative is:   \frac{df}{dx} = 2 a^n

        d) False the derivative is:   \frac{df}{da} = 2n \ x a^{n-1}

Learn more about the relationship between derivatives and kinematics here:   brainly.com/question/15344251

You might be interested in
Encontrar la distancia y desplazamiento de las dos trayectorias si se mueve el móvil Desde A hasta B
Lerok [7]

Answer:

Build Your Confidence

Check your grammar, spelling, and punctuation instantly with Grammarly

advertisement

grammarly.comBuild Your Confidence

Check your grammar, spelling, and punctuation instantly with Grammarly

advertisement

grammarly.com

Explanation:

6 0
3 years ago
9.
julsineya [31]
I don’t know just needed points im sorry
8 0
3 years ago
El peso normal de un estudiante de secundaria es 725 N y el área de los dos zapatos que usa es de 412 cm2 . La presión medida qu
kotykmax [81]

Answer:

Presión = 175,97 N/m²

Explanation:

Dados los siguientes datos;

Peso del alumno (fuerza) = 725N

Área de zapatos = 412 cm² a metros cuadrados = 412/100 = 4.12 metros

Para encontrar la presión, usaríamos la siguiente fórmula;

Presión = fuerza / área

Presión = 725 / 4.12

Presión = 175,97 N/m²

8 0
3 years ago
PLEASE ASAP!!
Over [174]

A)kinetic energy, because it is in motion

5 0
3 years ago
Read 2 more answers
The magnetic field strength at the north pole of a 2.0-cm-diameter, 8-cm-long Alnico magnet is 0.10 T. To produce the same field
sp2606 [1]

Answer:

N = 3032  turns

Explanation:

The magnetic field produced by a solenoid is described by

        B = μ₀ n I

Where is the permittivity in a vacuum with a value of 4π 10⁻⁷ N /A²,  n  is the turn density and I the current

Let's apply this equation to the problem, the turn density is the number of turns per unit length, in this case it is the same magnet length

       L = 8 cm = 0.08 m

Let's calculate

      B = μ₀ N/L   I

      N = B L / μ₀ I

      N = 0.10 0.08 / (4π 10⁻⁷  2.1)

      N = 3,032 103 turns

5 0
3 years ago
Other questions:
  • To get a feeling for inertial forces discuss the familiar cases of accelerating in a car in a straight line while increasing or
    6·1 answer
  • When two waves undergo complete, constructive interference, which of the following increases ?
    14·1 answer
  • If a 2 kg ball is at the edge of a 40 meter cliff and falls off, how much kinetic energy will the ball have when it hits the gro
    10·1 answer
  • A small object is attached to a horizontal spring and set in simple harmonic motion with amplitude A and period T. How long does
    15·1 answer
  • PLEASE HELP ME ASAP!!!!
    10·1 answer
  • A bookshelf is at rest in a room. a force of 35.0 newtons is applied to a bookshelf. if the floor imparts a frictional force of
    8·2 answers
  • Approximately how much of an atoms mass is located in its nucleus? A.less than 1% B.25% C.75% D.over 99%
    10·1 answer
  • What is the dimensional formula of torque and force ​
    13·2 answers
  • A T-shirt is launched at an angle of 30° with an initial velocity of 25 m/s how long does it take to reach the peak? How long is
    8·1 answer
  • Which two factors affect the amount of thermal energy an object has?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!