NASA decides to put a 128 kg satellite into orbit over the planet Venus because they want to take pictures. The satellite is 37,000,000 m above the surface of venus. Calculate the gravitational field at that altitude. m/s2
how do you calculate this

Answers

Answer 1

Answer: 1). Look up the acceleration of gravity on the surface of Venus. It's 8.87 m/s².
(That's about 10% less than on Earth.)

2). Look up the radius of Venus. It's 6051.8 km.
(That's about 5% less than Earth's.)

3). Remember that the gravitational field (acceleration, force) changes
opposite to the square of the distance from the planet ... or the distance
between any two masses that are gravitating.

Now we have enough information to do the calculating. Notice that the question
only asks for the planet's "gravitational field" (acceleration) way out there. That
has nothing to do with the satellite's mass, or whatever you decide to put out there,
or even if there's nothing out there at all. It's just a characteristic of Venus at that
distance from it.

The distances we need to compare are the distances from the center of Venus.

On the surface (distance from the center is the radius of Venus), it's 6,051,800 m.
In the orbit, it's 37,000,000 m.

The ratio is (37,000,000 / 6,051,800) = about 6.1 .

The gravity way out in the orbit is less than on the surface, and by the
same amount as the square of the distance ratio.

Surface gravity = 8.87

Gravity out at the orbit = 8.87 divided by (the distance ratio)²

Gravity = 8.87 / (6.1)²

Better way: Gravity = 8.87 x (6,051,800/37,000,000)² = 0.2373 m/sec²

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A skier has an acceleration of 2.5 m/s2. How long does it take her to come to a complete stop from a speed of 18 m/s?

Answers

(Assuming acceleration is -2.5m/s2) 7.2 seconds.

a = 2.5 m/s²

since , we have to stop so v = 0 m/s ( final velocity)

u = 18 m/s

t = ?

using ,

⇒ v = u + at

⇒ 0 = 18 + 2.5t

by this we are getting t<0 , since , t cant be -ve , Check your question

Why does the ballon stick to the wall after it is rubbed on the wool sweater?

Answers

because due to rubbing it is statically charges

If the frequencies of two component waves are 24 Hz and 20 Hz, they should produce _______ beats per second. A. 2
B. 8
C. 4
D. 12

Answers

This can be answered using the beat frequency formula, which is simply the difference between 2 frequencies.

Let: fᵇ = beat frequency
f₁ = first frequency
f₂ = second frequency

fᵇ = |f₁ - f₂|

substituting the values:
fᵇ = |24Hz - 20Hz|
fᵇ = 4Hz

The unit Hz also means beats per second, therefore:
fᵇ = 4 beats per second

Therefore, the answer is C. 4

C. 4 beats per second is correct

Bird man is flying horizontally at a speed of 33m/s and a height of 86m. Bird man releases a turd directly above the start of the field. How far from the start of the field should the robot hold the bucket to catch the turd.

Answers

Answer:

2838

Explanation:

Bode's Law: correctly predicted the location of Jupiter, uses a number sequence to determine planetary distances, incorrectly predicted the location of Uranus and Neptune, all of the above

Answers

The correct answer for the question that is being presented above is this one: "correctly predicted the location of Jupiter, uses a number sequence to determine planetary distances." Bode's law correctly predicted the location of Jupiter, uses a number sequence to determine planetary distances.

Final answer:

Bode's Law, also known as Titius-Bode law, provides a numerical pattern that predicts the position of most planets in our Solar System, including Jupiter. It, however, fails to accurately predict the location of Uranus and Neptune. The fundamental principles of planetary motion were established by Kepler's laws and later consolidated by Newton in his Universal Law of Gravitation.

Explanation:

This question pertains to Bode's Law, a rule of planetary distances at times referred to as the Titius-Bode Law. The rule indicates a pattern of increasing distances of the planets from the sun, which interestingly correlates to the position of most planets in our Solar System, including Jupiter. However, exceptions, particularly Uranus and Neptune, don't fit precisely into this pattern.

The origins of planetary motions can be traced back to the work of scientists like Herr Tycho Brahe, Johannes Kepler, and Sir Isaac Newton. Kepler's work in particular developed three fundamental laws of planetary motion using Brahe's meticulously collected data. These laws describe the behavior of planets in their orbits and together provide the foundation of the Universal Law of Gravitation as later synthesized by Newton.

Learn more about Bode's Law here:

brainly.com/question/35159500

#SPJ3

Which statement describes a characteristiccommon to all electromagnetic waves and
mechanical waves?
(1) Both types of waves travel at the same speed.
(2) Both types of waves require a material medium
for propagation.
(3) Both types of waves propagate in a vacuum.
(4) Both types of waves transfer energy.

Answers

"(4) Both types of waves transfer energy." is the best option from the list regarding the characteristics common to all electromagnetic waves and mechanical waves

Answer: The correct answer is (4).

Explanation:

Electromagnetic wave is the transverse wave. It is produced by the moving charged particle. It travels at the speed of the light. It does not require a medium to travel. It can travel through the vacuum.

In mechanical wave, there is an oscillation of matter. It requires a medium to travel.It cannot travel through vacuum. The three types of mechanical waves are longitudinal wave, transverse wave and surface wave.

The common characteristics to all electromagnetic waves and mechanical waves are both can move through matter and both can occur as a result of a disturbance. This disturbance is a result of wave transfer energy.

Therefore, the common characteristic to all electromagnetic and mechanical waves is both types of waves transfer energy.

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