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
Misha Larkins [42]
3 years ago
14

A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s2 . what is the net external force on him?

Physics
1 answer:
lora16 [44]3 years ago
8 0
From Newton's second law of motion, it was stated that the net external force on a certain object can be calculated by multiplying its mass to the acceleration. This can mathematically be expressed as,
     Fnet = m x a
where m is mass and a is acceleration.

Substitute the known values to the equation,
      Fnet = (63 kg) x (4.20 m/s²)
      Fnet = 264.6 kg m/s²
 
ANSWER: <em>Fnet = 264.6 N</em>
You might be interested in
2. It is to bring down the foot forcibly to the f a heavy step) with or without weight. 2 Ormain lateral position - This is done
irga5000 [103]
Im confused bc im not sure if this is a full question
5 0
2 years ago
Calculati rezistenta filamentului unui bec al lanternei de buzunar daca la tensiunea de 3,5 v el este parcurs de un curent cu in
Gennadij [26K]

Answer:

Resistencia = 12.5 Ohmios

Explanation:

Dados los siguientes parámetros;

Voltaje = 3.5 Volts

Corriente = 0.28 Amps

Para encontrar el resistencia;

La ley de Ohm establece que a temperatura constante, la corriente que fluye en un circuito eléctrico es directamente proporcional al voltaje aplicado en los dos puntos e inversamente proporcional a la resistencia en el circuito eléctrico.

Matemáticamente, La ley de Ohm viene dada por la fórmula;

Voltaje = corriente * resistencia

Resistencia = voltaje/corriente

Resistencia = 3.5/0.28

Resistencia = 12.5 Ohmios

Por tanto, la resistencia del filamento de una linterna de bolsillo es de 12,5 ohmios.

3 0
2 years ago
Can somebody tell me what time is it
kodGreya [7K]

Answer:

8:21am

Explanation:

I hate stupid school

5 0
2 years ago
Read 2 more answers
Find the kinetic energy of a 0.1 kg toy truck moving at a speed of 1.1 m/s
enot [183]
0.0605J is your answer. Use the formula KE=1/2mv^2
8 0
3 years ago
How does the muscular system help humans maintain posture?
leonid [27]
The muscular system<span> is an </span>organ system<span> composed of </span>skeletal<span>, </span>smooth<span> and </span>cardiac muscles<span>. This system allows movement of the body, maintains posture, and circulates blood throughout the body. 
</span>
>Muscles<span> continually align themselves vertically to </span>help maintain posture.
7 0
3 years ago
Other questions:
  • Which correctly ranks, from fastest to slowest, the time it will take one wavelength to pass a certain point?
    6·2 answers
  • In which of the following eons did a significant amount of oxygen gas exist in Earth's atmosphere?
    5·1 answer
  • The basic unit for mass is the<br> a. gram.<br> c. cubic meter.<br> b. metric ton.<br> d. meter.
    6·2 answers
  • What shoreline feature would develop if the global sea level were to rise considerably
    9·1 answer
  • Help me solve this please?
    5·2 answers
  • Which property of sound leads to the formation of sound?​
    15·1 answer
  • What is the mechanical advantage of a lever that is 20 meters
    13·2 answers
  • How are electrical energy, thermal energy, and mechanical energy related?
    7·1 answer
  • In your own words who discovered gadolinium
    7·2 answers
  • which relationship best represents the relationship between the magnitude of the centripetal acceleration and the speed of an ob
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!