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Scorpion4ik [409]
3 years ago
15

What is the net force acting on an object that is not accelerating in the horizontal axis?

Physics
1 answer:
yuradex [85]3 years ago
8 0

Answer:

.......................

Explanation:

A net force = unbalanced force. If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant.

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Why are you teachers regarded as professionals​
Murljashka [212]

Answer:

coz teaching is their profession.

3 0
4 years ago
You are a visitor aboard the New International Space Station, which is in a circular orbit around the Earth with an orbital spee
Alchen [17]

Answer:

The minimum total speed is 11.2km/s

Explanation:

We are been asked to find the escape velocity.

Escape velocity is defined as the minimum initial velocity that will take a body(projectile)away above the surface of a planet(earth) when it's projected vertically upwards.

The formula to calculate the escape velocity is Ve = √2gR

For the earth g = 9.8m/s2 , R = 6.4*10^6

Substituting into the equation Ve = √2*9.8*6.4*10^6 = 11.2*10^3m/s

=11.2km/s

5 0
3 years ago
Read 2 more answers
One of the foci for the moon's orbit would be the
suter [353]
The question is oversimplified, and pretty sloppy.

Relative to the Earth . . .
The Moon is in an elliptical orbit around us, with a period of
27.32... days, and with the Earth at one focus of the ellipse.

Relative to the Sun . . .
The Moon is in an elliptical orbit around the Sun, with a period
of 365.24... days, and with the Sun at one focus of the ellipse,
and the Moon itself makes little dimples or squiggles in its orbit
on account of the gravitational influence of the nearby Earth.

I'm sorry if that seems complicated.  You know that motion is
always relative to something, and the solar system is not simple.
5 0
3 years ago
Read 2 more answers
An electric motor is used to run an elevator. The total mass of the elevator car and passenger is 1600 kg. The elevator moves up
Masja [62]

Answer:

Approximately 2.7 \times 10^{4}\; {\rm W}, assuming that g = 9.81\; {\rm m\cdot s^{-2}}

Explanation:

The weight of the elevator is:

\begin{aligned}& \text{weight} \\ =\; & m\, g \\ =\; & 1600\; {\rm kg} \times 9.81\; {\rm m \cdot s^{-2}} \\ \approx\; & 15700\; {\rm N}\end{aligned}.

Since the speed of the elevator is constant, the acceleration of this elevator would be 0.

By Newton's Second Law of Motion, the net force on the elevator (proportional to acceleration) would also be 0\!. All external forces on the elevator need to be balanced in every direction.

The only two vertical forces on the elevator are:

  • the weight of the elevator (downward gravitational pull from the earth,) and
  • the upward pull from the motor.

These two forces need to balance one another. Since the weight of the elevator is approximately 15700\; {\rm N}, the upward pull of the motor would be 15700\; {\rm N}\!. in magnitude.

The direction of this upward pull is the same as the direction of the motion of this elevator. Thus, the work that the motor did on the elevator would be positive:

\begin{aligned}& \text{work} \\ =\; & F\, s \\ \approx\; & 15700\; {\rm N} \times 15.0\; {\rm m} \\ \approx\; & 2.35 \times 10^{5}\; {\rm J}\end{aligned}.

Since the velocity of the elevator is constant, instantaneous power output of the motor would be equal to the average power of the motor:

\begin{aligned}& \text{power} \\ =\; & \frac{\text{work}}{t} \\ \approx\; & \frac{2.35 \times 10^{5}\; {\rm J}}{8.82\; {\rm s}} \\ \approx\; & 2.7 \times 10^{4}\end{aligned}.

4 0
3 years ago
john is examining fossils in the nevada desert he determines that they are from the certaish period what type of investagation i
vfiekz [6]

The type of investigation is she is conducting by determining the period in which it is from is referred to as the geologic age.

<h3>What is Geologic age?</h3>

This is defined as the time period in which the fossil was present on the earth and can be done using various methods such as radiometric dating methods etc. The age gotten will help scientists to ascertain different information about the organism in this context.

Fossil on the other hand which is the remains of organisms preserved in the earth crust can be studied to find out the differences in the features of organisms and how they were able to adapt to the changing environmental conditions.

Read more about Fossil here brainly.com/question/11829803

#SPJ1

6 0
2 years ago
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