1. If Hailey's comet has an orbital period of 75 years, how far will Hailey's Comet
go?
Answers
This question involves the concepts of the time period, orbital radius, and gravitational constant.
The distance of Hailey's comet above the Earth's Surface is "3.19 x 10⁴ km".
The theoretical time period of the comet around the earth can be found using the following formula:
[tex]\frac{T^2}{R^3}=\frac{4\pi^2}{GM}[/tex]
where,
T = Time Period of Satellite = 75 years[tex](\frac{365\ days}{1\ year})(\frac{24\ h}{1\ day})(\frac{3600\ s}{1\ h})[/tex] = 2.36 x 10⁹ s
R = Orbital Radius = ?
G = Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²
M = Mass of Earth = 5.97 x 10²⁴ kg
Therefore,
[tex]\frac{(2.36\ x\ 10^9\ s)^2}{R^3}= \frac{4\pi^2}{(6.67\ x\ 10{-11}\ N.m^2/kg^2)(5.97\ x\ 10^{24}\ kg)}\\\\R=\sqrt[3]{\frac{(6.67\ x\ 10{-11}\ N.m^2/kg^2)(5.97\ x\ 10^{24}\ kg)(2.36\ x\ 10^9\ s)^2}{4\pi^2}}[/tex]
R = 3.83 x 10⁷ m = 3.83 x 10⁴ km
Now, this orbital radius is the sum of the radius of the earth (r) and the distance of comet above earth's (h) surface:
R = r + h
3.83 x 10⁴ km = 0.64 x 10⁴ km + h
h = 3.83 x 10⁴ km - 0.64 x 10⁴ km
h = 3.19 x 10⁴ km = 31900 km
Learn more about the orbital time period here:
brainly.com/question/14494804?referrer=searchResults
The attached picture shows the derivation of the formula for orbital speed.
Related Questions
you've been tired and lethargy what are two possible reasons?
Answers
Explanation:
physical exertion.
lack of physical activity.
lack of sleep.
being overweight or obese.
periods of emotional stress.
boredom.
grief.
taking certain medications, such as antidepressants or sedatives.
What is the Eg, Ek, and Ediss of a skier starting at an elevation of 40m and ending at 0m elevation
Answers
Answer:
E_g = m 392 J, Ek = m 392
Explanation:
Mechanical energy is a very important concept since if the system does not have friction it remains constant
the potential energy of a system is
E_g = U = m g (y2 - i)
E_g = m 9.8 (40 -0)
E_g = m 392 J
The kinetic energy for this system assuming it started from rest
E_k = K = ½ m v2
how mechanical energy is conserved
E_g = E_k
Ek = m 392
Which of the following most directly shows how physics affects society?
A. A car comes equipped with side air bags.
B. A business conducts meetings over the Internet.
O C. A surgeon performs a heart transplant.
D. A singer wins an award for a song she wrote.
Answers
the answer is definitely A.
Please help!! I'll thank everyone and give brainliest to the best/correct answer!!!
Using your knowledge of fluid pressure, explain why your ears hurt more and more as you dive deeper and deeper underwater.
Answers
Answer:
Ear pain is the most common complaint from scuba divers. Some divers call it "ear squeeze." As a diver goes deeper under water and the outer environment pressure increases, the pressure in the middle ear (the part behind the ear drum) is "squeezed" by the increasing pressure of the water from outside
I hope this helps!! :D
Why didn’t the liquid methane change phase before 2007?
Answers
The basic reason is that before 2007 their were not enough energy in the liquid methane molecules to break the bond between them after 2007 the energy of the molecules increases which breaks the bond and the liquid methane changes phase.
Why didn’t the liquid methane change phase before 2007?It had been summer since 2002, but the lake didn’t evaporate until 2007.
The molecular attraction between methane molecules is stronger the amount of energy absorbed by liquid methane was not enough to break the inter molecular forces until 2007.
After 2007, the sun had transferred enough energy so that the kinetic energy of the methane molecules increased enough to overcome the attraction between them.
The liquid methane evaporated and the molecules started moving away from each other.
Thus the liquid methane starts to change phase after 2007 by getting enough energy from the sun.
To know more about the phase change follow
https://brainly.com/question/25664350
Fill in the blank: A _____ is dissolved by a solvent
Answers
I need help as fast as possible please
Will mark BRAINLIST and will give thanks only to correct answers
Thank you so much!
Answers
Do longitude lines run horizontally (east-west) or vertically (north-south)?
Answers
Latitude- Vertical (North South)
Please help
What is the angle of the reflected ray in the diagram above?
Answers
b. Local action and polarization
Answers
Explanation:
The local action of a battery is the deterioration of the battery due to currents that are flowing from and to the same electrode. ... Polarization is a defect that occurs in simple electric cells due to the accumulation of hydrogen gas around the positive electrode.
3. Is the relationship between the gravitational force and the mass directly proportional or
inversely proportional?
Answers
Answer:
Directly Proportional
Explanation:
Gravitational force can be calculated with the equation F = g(m1 * m2)/ r^2
So if we increase mass, force will also increase because mass is in the numerator.
pls answer fast and correct i will give brainlest who ever gets it correct
The boy’s skateboard trips on the stairs and comes to a stop. This shows inertia because:
Answers
A man carries a 25 kg box 5 meters across the room. How much work is being done?
Answers
Answer:
Given :-Mass = 25 kg
Height = 5 m
Acceleration due to gravity = 10 m/s
To Find :-Work done
Solution :-We know that
W = mgh
W = 25 × 5 × 10
W = 250 × 5
W = 1250 J
[tex] \\ \\ \\ [/tex]
ANSWER ASAP!!!!!
Chemotherapy is used to treat many types of cancer. A researcher discovers that modifying treatment by
altering the dosage of a group of drugs and incorporating radiation therapy increases the effectiveness
in treating a particular type of cancer.
Read the information above. How should the researcher proceed?
A. He should request an interview with a representative from a major newspaper.
B. He should keep his findings secret to prevent them from being misused.
C. He should report his findings to a reputable science journal.
D. He should encourage doctors nationwide to use the new course of treatment.
Answers
Answer:
He should report his findings to a reputable science journal.
i. )Which unit can be used to express force?
a. Nm
b. kg/s 2
c. kg • m/s 2
d. m/s
ii. )Newton’s second law of motion relates an object’s acceleration to
a. its mass.
b. its velocity.
c. the net force acting on it.
d. two of the above.
iii. )An object is accelerating when it
a. speeds up
b. slows down.
c. changes direction
d. any of the above.
iv. )Doubling the net force acting on an objecta. doubles the acceleration
b. decreases it acceleration.
c. cuts its acceleration in half.
d. does not affect its acceleration.
v. ) If you push a 20 - kilogram mass with a force of 40 N, what will be the object’s
acceleration?
a. 40 m/s2
b. 20 m/s2
c. 10 m/s2
d. 2 m/s2
Answers
The correct choices, sequentially and respectively, are c., d., d., a., d.
the law of conservation of momentum states that, if left alone what happens to the total momentum of two interacting objects that make up a system
Answers
Answer:
It remains the same
Explanation:
At any point in time the total momentum of two objects interacting remains the same
This follows the laws of space(space is uniform)
Answer:
(Question) Which of these quantities is a vector?
(Answer) momentum
(Question) What is the representation of the momentum vector?
(Answer) an arrow
(Question) What is the formula for the momentum p?
(Answer) p=m⋅v
(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?
(Answer) The total momentum is conserved.
(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?
(Answer) 6.0
Explanation:
just did the quick check UwU
When a runner hits the ball and makes it around all bases safely to Home Base without getting tagged out it is called a?
Answers
Answer:
Home run
Explanation:
i play
A 350kg motorcycle is moving at 20m/s. It then speeds up to 30m/s. How much work did the engine do to accelerate?
Answers
Answer:
momentum= mass× velocity
=350kg (30-20) m/s
=3500kgm/s
Doctors use radioactive sources as tracers for medical imaging. The table below shows the properties
of some radioactive sources. Which source would be the best to use for a tracer that must be injected
into the body?
Enter your answer as a number
Radioactive source
Type(s) of
radiation emitted
Half-life
1
gamma
7 weeks
2
beta
3 days
12 minutes
3
alpha and gamma
4
gamma
23 minutes
5
alpha
4 hours
Answers
Answer:
Technetium.
Explanation:
Tc is a very versatile radioisotope, and is the most commonly used radioisotope tracer in medicine. It is easy to produce in a technetium-99m generator, by decay of 99Mo. ... Tc decays by gamma emission, with a half-life: 6.01 hours.
Answer:
its the fourth one
A mouse ran 25.45 meters in 11 seconds, stopped for 5 seconds to eat a piece of cheese, ran 2.5 meters in 1.2 seconds to hide behind a shelf, and finally ran another 9 seconds a distance of 15 meters to its home. Calculate the average speed of the mouse in m/s.
Answers
The kidneys help the body preserve water. When an animal has not had enough to drink, the kidneys signal the body to absorb water. The animal produces little urine, so it loses less water. During this process, the kidneys work in conjunction with which body system?
A
respiratory
B
integumentary
C
excretory
D
immune
bonus question fredo bang or nba young boy
Answers
C
Explanation:
That’s the only one that actually connects to the question, every other answer is talking about a different function of the body.
You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?
pls show equation
Answers
Answer:
1/2 seconds per meter
Explanation:
The number of seconds is going to be x
45 ÷ 90 = x
x = 1/2
I mean there are more complicated ways to do it, but this is the easy one :)
Answer:
1/2 per meter
Explanation:
7 points
Lynn is walking up a hill with a horizontal distance of 20m and a vertical
distance of 12m. What is her displacement at the top?*
16.9m
23.3m
26.4m
34.5m
Other:
Answers
Answer:
displacement = 23.32m___________________FOLLOW MEhow do we use sounds in ways other than just listening?
Answers
Answer:
talking and we can make our own sound
Explanation:
Sound could be an element for detecting people or entities, This is very useful for blind people. Sounds could also heal your chakra or make you feel like dancing.
Hope I helped. :)
- Valenteer
What word
When an object is vibrating, we say that it has energy in its kinetic energy___
completes the sentence?
Answers
Answer:
that is which produces Sound
Answer:
The right answer is "stores"
Explanation:
All objects that are moving will have some energy in their kinetic energy store.
to start something moving, a push force must be ______ than resisting forces such a friction. what word complets the gap?
Answers
Answer:
To start something moving, a push force must be greater than resisting forces such a friction.
Explanation:
The force of resistance, for example friction, slows things down, so the push force must be greater in order to increase the speed or to start something moving.
A round ball is kicked into the air at an angle of 39 degrees above the horizontal. The
initial velocity of the ball is 32 m/s.
A. How long is the ball in the air?
B. What is the horizontal distance traveled by the ball?
C. What is the maximum height reached by the ball?
Answers
Answer:
b
Explanation:
What are 5 violations of the rules for Ultimate Frisbee
Answers
Answer:
Violations. A violation occurs when a player violates the rules in a manner which does not result in physical contact ( e.g. throwing a pass during an approach to the goal line; illegal guarding position by the marker; not establishing a pivot foot after carrying the disc in from out-of-bounds, etc.)
The object of Ultimate Frisbee is to gain points by scoring goals. The disc may only be passed, and a goal is scored when a player successfully passes the disc to a teammate in the end zone which that team is attacking. The team with the most points at the end of the game is declared the winner.
Explanation:
Vert (Vertical) Stack – The most common offensive play in Ultimate Frisbee. The Mailman – An intense offensive tactical maneuver to guarantee a gain of at least 70% of the field. TurboDisc – Can be added to almost any play to ensure max effectiveness.
If contact occurs and the thrower drops the disc, the count stops until the thrower picks up the disc and continues with play. The defensive player will have to back up 5 yards (15 feet) to allow a free throw from the offensive player.
PLEASEE HELPPLook at the diagram of two students pulling a bag of volleyball equipment. The friction force between the bag and the floor is 4 N. What is the net force acting on the bag? What direction is the bag moving in?
Answers
Answer:
The net force is 21 N, and the bag will go to the right.
Explanation:
You can find the net force by adding both values of the boy and the girl, and then subtracting four from it. You can also figure out which direction its moving by looking at which side is exerting the most force, which would be the right side.
Hope it helps!
Alex rides on a bike that starts from rest and accelerates to a speed of 20 m/s in 8 seconds. What is Alex’s acceleration?
Answers
Answer:
20m/s
Explanation:
Alex's acceleration is also Alex speed