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4 years ago

Which statements accurately describe satellite motion? Check all that apply.

Physics

2 answers:

kap26 [50]4 years ago

7 0

The correct answers are 1,4,5,6
<em />I know this is right.

EastWind [94]4 years ago

5 0

Answer:

Gravity is the only force acting on a satellite.

Circular orbits result from the interaction between gravity and inertia.

Gravity provides the centripetal force for satellites.

Satellites are in free fall around Earth or other central objects.

Explanation:

Due to gravity, which acts as a centripetal force, the satellite remains in orbit, otherwise the straight motion generated by inertia would take it out of course. If the satellite moves very fast, it will leave the orbit towards the depths of space. On the other hand, if it moves very slowly, gravity will bring it directly to Earth. When the balance between gravity and inertia is achieved, the satellite is still in free fall, but at a very small rate.

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How do you post a picture

BARSIC [14]

Click the ask a question button or answer button then at the bottom above the keyboard there are two little icons. A camera lens and a Mountain View. If you click the camera lens you can take a picture to post and if you click the Mountain View it will give you the option to post a picture from your photos.

4 0

3 years ago

Change 6 revolutions per minute to a linear speed measured in m/s. The radius is 3 m.

satela [25.4K]

Answer:

Explanation:you know

circumference of a circle =2*pi*r=?

r=radius of a circle =3m

total distance of 6 revolution =s=6*2*pi*r

again, linear speed =v=s/t=?

t=time =60sec

7 0

3 years ago

A ray of yellow sodium light enters water from air with an angle of incidence of 45°. What is the angle of refraction?

Svetllana [295]

Answer:

32°

Explanation:

Snell's law:

n₁ sin θ₁ = n₂ sin θ₂

1.00 sin 45° = 1.33 sin θ

θ ≈ 32°

6 0

3 years ago

A 2.50-g bullet, traveling at a speed of 425 m/s, strikes the wooden block of a ballistic pendulum, such as that in the picture.

Gala2k [10]

Answer:

4.88505 m/s

1.21629 m

Explanation:

$m_1$ = Mass of bullet = 2.5 g

$m_2$ = Mass of block = 215 g

$v_1$ = Velocity of bullet = 425 m/s

$v_2$ = Velocity of block

Here, the linear momentum is conserved

$m_1v_1+m_2v_2=(m_1+m_2)v\\\Rightarrow v=\dfrac{m_1v_1+m_2v_2}{m_1+m_2}\\\Rightarrow v=\dfrac{2.5\times 10^{-3}\times 425+0.215\times 0}{2.5\times 10^{-3}+0.215}\\\Rightarrow v=4.88505\ m/s$

The speed of the combination of mass is 4.88505 m/s

The energy in the system is conserved

$\dfrac{1}{2}(m_1+m_2)v^2=(m_1+m_2)gh\\\Rightarrow h=\dfrac{v^2}{2g}\\\Rightarrow h=\dfrac{4.88505^2}{2\times 9.81}\\\Rightarrow h=1.21629\ m$

The maximum height the combined mass will reach is 1.21629 m

5 0

3 years ago

Read 2 more answers

F1 = (3.3,-0.5) and F2 = (-3.8,-0.3) where all components are in newtons. What angle does the vector F1 + F2 make with the posit

Lapatulllka [165]

Answer:

238 Degree

Explanation:

Data given

F1=(3.3,-0.5) and F2=(-3.8,-0.3).

To determine the angle F1+F2 makes with the positive x-axis, we need to determine the magnitude of the force F1+F2.

Since force is a vector quantity, we add the vectors component by component

$F_{1}+F_{2}= +\\F_{1}+F_{2}=\\ F_{1}+F_{2}=\\F_{1}+F_{2}=(-0.5,-0.8)$

To determine the angle, we use

$F=(x,y)\\\alpha=arctan(\frac{y}{x} )\\Hence for \\F_{1}+F_{2}=(-0.5,-0.8)\\\alpha=arctan(\frac{-0.8}{-0.5} )\\\alpha=58^{0}$

Since the component of the force F1+F2 is a negative y and negative x which are located in the 3rd quadrant, the angle can be calculated as

∝=58+180=238 degree

Hence The angle is measured counterclockwise from the positive x-axis and must be in the range from 0 to 360 degrees is 238 Degree

7 0

4 years ago