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
Alexeev081 [22]
3 years ago
7

With what orbital speed will a satellite circle Jupiter if placed at a height of 4.40 10 6 m above the surface of the planet? Th

e mass of Jupiter is 1.90 ✕ 1027 kg and the radius of Jupiter is 7.14 ✕ 107 m.
Physics
1 answer:
Katarina [22]3 years ago
5 0

Answer:

v = 4.1 \times 10^4 m/s

Explanation:

Here we know that for every satellite we have net force on it given as centripetal force

So it is given as

F_c = \frac{mv^2}{r}

\frac{GMm}{r^2} = \frac{mv^2}{r}

now we will have

v^2 = \frac{GM}{r}

here we know that

r = distance from the center of the planet

r = 7.14 \times 10^7 + 4.40 \times 10^6

r = 7.58 \times 10^7 m

now we will have

v^2 = \frac{6.67 \times 10^{-11}(1.90 \times 10^{27})}{7.58 \times 10^7}

v^2 = 1.67 \times 10^9

v = 4.1 \times 10^4 m/s

You might be interested in
Por un solenoide de 6500 espiras y 25 cm de longitud circula una corriente de 0,6 amperios. ¿Cuál es el valor del campo magnétic
9966 [12]

Answer:

Magnetic field, B = 0.0196 T

Explanation:

A current of 0.6 amps flows through a solenoid 6500 turns and 25 cm long. What is the value of the magnetic field inside it?

We have,

Current, I = 0.6 A

Number of turns in the solenoid, N = 6500

Length of solenoid, l = 25 cm = 0.25 m

The magnetic field inside the solenoid is given by :

B=\mu_o\dfrac{N}{l}I\\\\B=\dfrac{4\pi \times 10^{-7}\times 6500\times 0.6}{0.25}\\\\B=0.0196\ T

So, the value of the magnetic field inside the solenoid is 0.0196 T.

8 0
4 years ago
The diagram shows the electric field lines surrounding two positive point charges. If the charge on the right were replaced with
WINSTONCH [101]

Answer:

Explanation:

The wording on some of these choices is very strange; I'm not sure exactly what they are stating. First of all, A. is definitely a choice because if both the charges were opposite, they would be attracted to one another as opposed to be repelled away from one another, as they are when they are both positive. What happens is that the charges go OUT from the positive charge and INTO the negative; so as far as the field lines around both charges would change direction...no; only the direction of the field lines would change on the positive charge (which is the one on the left). In that space where D is filled in by the field lines going OUT of the positive charge and INTO the negative one, the lines there are naturally closer together, and that is the point where the charge is the greatest. So if that is what is meant by the field lines getting closer together, then yes, they do. As far as choice D. again the field lines on the negative charge don't change, only the ones on the positive charge change.

4 0
3 years ago
Which occurs when a wave is reflected?
dmitriy555 [2]

Answer: The wave can flip upside down.

Reflection is the bending of a wave when it cannot pass through. For example, plain mirrors which are flat, a ray of light hits the mirror and is reflected from the mirror since it cannot pass through  

When reflection occurs the speed and frequency of the wave does not change but the wave is flipped upside down.

The speed does not change because speed is affected by the change in medium the frequency also remains the same since the energy of the wave does not change.


3 0
3 years ago
Read 2 more answers
While walking between gates at an airport, you notice a child running along a moving walkway. Estimating that the child runs at
Mashcka [7]

Answer:

The speed of the moving walkway is 1.50 m/s

Explanation:

The position of the child can be calculated using the following equation:

x = x0 + v · t

Where :

x = position of the child at time t.

v = velocity of the child.

t = time.

When the child runs in the same direction as the walkway, the velocity of the child will be its  velocity relative to the walkway plus the velocity of the walkway. Then, if we place the origin of the frame of reference at the start of the walkway:

x = x0 + v · t

25 m = 0 m + (2.8 m/s + v) · t₁

Where v is the velocity of the walkway

On its way back, the velocity of the child relative to the walkway is in the opposite direction to the velocity of the walkway. Then:

x = x0 + v · t

0 m = 25 m + (-2.8 m/s + v) · t₂

We also know that t₁ + t₂ = 25 s

Then: t₁ = 25 - t₂

So, we can write the following system of equations:

25 m = (2.8 m/s + v) · (25 s - t₂)

-25 m = (-2.8 m/s + v) · t₂

Let´s take the second equation and solve it for t₂

-25 m / (-2.8 m/s + v) = t₂

Now, let´s replace t₂ in the first equation:

25 m = (2.8 m/s + v) · (25 s + 25 m / (-2.8 m/s + v))

Let´s sum the fraction: 25 s + 25 m / (-2.8 m/s + v)

25 m = (2.8 m/s + v) · (25 s ·(-2.8 m/s + v) + 25 m) / (-2.8 m/s + v)

multiply by (-2.8 m/s + v) both sides of the equation:

25 m(-2.8 m/s + v) = (2.8 m/s + v) · (-70 m + 25 s · v + 25 m)

Apply distributive property:

-70 m²/s +25 m·v = -196 m²/s +70 m·v +70 m²/s -70 m·v +25 s ·v² + 25 m v

56 m²/s = 25 s · v²

56 m²/s / 25 s = v²

v = 1.50 m/s

The speed of the moving walkway is 1.50 m/s

7 0
3 years ago
Which of the following is NOT an important physical property of matter?
Xelga [282]
Volume isn't a property of matter at all. You can have a big lump or a tiny lump of the same substance.
5 0
3 years ago
Other questions:
  • One nanometer is equal to how many centimeters ?
    9·2 answers
  • Technician A says that a flexible coupling may be used to connect the steering shaft to the gear input shaft. Technician B says
    12·1 answer
  • Two 2.0 kg bodies, A and B, collide. The velocities before the collision are
    10·1 answer
  • Help ASAP!
    5·1 answer
  • 2. A woman pulls a 20 kg suitcase along a 15 m corridor using a horizontal force of 50 N.
    10·1 answer
  • Identical point charges of +1.6 μC are fixed to diagonally opposite corners of a square. A third charge is then fixed at the cen
    8·1 answer
  • 2. Jenny picks up a guitar and strums. If the sound from the string emanates out at 440 Hz,
    10·1 answer
  • Which answer choice describes the noble gases
    6·1 answer
  • What is friction and the types withe examples.​
    13·1 answer
  • Almost all of the energy that humans use ultimately comes from
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!