Answer:
The fraction of the weight of the astronaut on Callisto to the weight on Earth is 0.126.
Explanation:
From Newton's Law of Motion, the weight ([tex]W[/tex]), measured in newtons, of an object is defined by this expression:
[tex]W = m\cdot g[/tex] (1)
Where:
[tex]m[/tex] - Mass, measured in kilograms.
[tex]g[/tex] - Gravitational acceleration, measured in meters per square second.
The gravitational acceleration in Callisto is 1.236 meters per square second.
If we know that [tex]m = 50\,kg[/tex] and [tex]g = 1.236\,\frac{m}{s^{2}}[/tex], then the weight of the astronaut in Callisto is:
[tex]W = (50\,kg)\cdot \left(1.236\,\frac{m}{s^{2}} \right)[/tex]
[tex]W = 61.8\,N[/tex]
And the fraction is:
[tex]x = \frac{61.8\,N}{490\,N}[/tex]
[tex]x = 0.126[/tex]
The fraction of the weight of the astronaut on Callisto to the weight on Earth is 0.126.
3. A fighter jet covers a distance of 895m while accelerating from 22m/s to 35m/s. How long (in
seconds) did this take to happen?
Answer:
31.404 seconds
Explanation:
To answer this equation, SUVAT is your best option utilizing and rearranging the known values to solve for the unknown.
here we have the values for
s=895
u=22
v=35
t= the unknown value
in this instant the equation s=0.5 x (u+v)t is the best equation to use
so we sub in the known values
895=0.5 x (22+35)t
rearrange to solve for t
895=28.5t
895/28.5=t
t=31.404 seconds (rounded to 3 decimal places)
A person drives for 1.00 h at 10.0 km/h and 2.00 h at 20.0 km/h. What is their average speed, in SI units?
A.
4.63 m/s
B.
16.7 km/h
C.
10.3 mph
D.
16.7 m/s
A cyclist reduces his speed from 6.5 m/s to 0.0 m/s with an acceleration of
a -1.2 m/s². How long does that take?
Answer:
a= -1.2 m/s^2
Vi= 6.5 m/s
Vf= 0 m/s
t= 0-6.5/-1.2= 5.45 Sec
Explanation:
Which of the following does Bernoulli's principle help to explain?
A. Flying
B. Surface tension
C. Floating
D. Hydraulics
Using a box covered with graph paper allows you to simulate which aspect of a car crash?
Answer:
a computer modeling
Explanation:
what equation links charge flow, current and time?
I will award Brainliest if CORRECT!
Answer:
Q=it
Explanation:
[tex] \purple {\bold {Q = it}} [/tex] is the equation equation that links charge flow, current and time.
Here,
Q = Charge
i = current
t = time
Usain Bolt is the fastest human at 12.4 m/s. If Usain Bolt had a mass of 94kg, what was Usain Bolt’s KE?
Answer:The fastest recorded human footspeed was recorded between 60 and 80m in Bolt's world record 9.58-second 100m final in Berlin in 2009. Bolt was clocked at 44.72km/h, which is 27.8mph. The Jamaican covered the distance between 60-80m in a time of just 1.61 seconds
Explanation:
pls brainlist too
What happens to the particles of an object when its temperature increases? *
The PE of the particles decreases.
The KE of the particles decreases.
The PE of the particles increases.
The KE of the particles increases.
Answer:KE
Explanation:
A sledgehammer is an example of what kind of simple machine?
A. Wheel and axle
o
B. Screw
c
C. Wedge
D. Lever
SUS
I am 95 percent sure the answer in C
Answer: C
Explanation:
In what kind of reaction do hydrogen gas (H2) and oxygen gas (O2) form
water (H20)?
A. Replacement
B. Displacement
C. Combination
D. Decomposition
Answer:
combination
Explanation:
In the equation to make h20 they are both their; they combine to make h20 PLEASE AMRK BRAINLIEST I NEED IT ヾ(•ω•`)o
To those against whom war is made, permission is given (to fight), because they are wronged;- and verily, Allah is most powerful for their aid.
Answer:
allah is pog
Explanation:
Segment D - E : The bus is speed_____ It is gradually increasing it's
A slowing down
B speeding up
C constant speed
D at rest
Plss help
Hi I'm trying to find the friction coefficient using the mass, change in height, and displacement of an object
A constant friction force of 21 N acts on a 63-kg skier for 25 s on level snow. What is the skier’s change in velocity?
What two factors affect work?
Answer:
Money and health?
Explanation:
Answer:
force and displacement.
Explanation:
force and displacement.
5. The entrance of a science museum features a funnel into which marbles are rolled one at a time. The marbles circle around the wall of the funnel, eventually spiraling down into the neck of the funnel. The internal radius of the funnel at the top is 0.54 m. At the bottom, the funnel's neck nar- rows to an internal radius of 0.040 m. A 2.5 x 10-2 kg marble begins rolling in a large circular orbit around the funnel's rim at 0.35 rev/s. If it continues moving in a roughly circular path, what will the marble's angular speed be as it passes throught the neck of the funnel? (Consider only the effects of the conservation of angular momentum.)
Answer:
400.7886829 rad/s
Explanation:
First we have to turn our 0.35 rev/s into rad/s using the equation
(Xrev/s)*2pi=Xrad/s we can plug in .35*2pi=.7pi rad/s
Now we can us the equation m_1*v_1*r_1^2=m_1*v_2*r_2^2 we can plug in the given. Because the mass remains the same we can cross it off of both sides giving us just: v_1*r_1^2=v_2*r_2^2
(.7pi)*(.54)^2=(v_2)*(.04)^2
(.20412pi)=(v_2)*(.0016) [.20412pi=.6412618925]
then using division on both sides we get
(.6412618925/.0016)=v_2=400.79rad/s(This answer is rounded to the nearest hundreth)
See you in Mr.K's class tomorrow! -Ruben
The marble's angular speed as it passes through the neck of the funnel is 36.225 rev/s.
What is the conservation of angular momentum?The conservation of angular momentum states that the angular momentum of an object is conserved when there is no external torque acting on it.
We have,
The marble is rolling in a large circular orbit around the rim of the funnel. The angular momentum of the marble can be expressed as:
L = Iω
where L is the angular momentum, I is the moment of inertia, and ω is the angular velocity.
Now,
Since the marble is rolling in a circular orbit around the rim of the funnel, we can approximate its moment of inertia as a point mass rotating around a fixed axis.
The moment of inertia of a point mass rotating around an axis is given by:
I = mr²
where m is the mass of the marble and r is the radius of the circular orbit.
At the top of the funnel,
The radius of the circular orbit is equal to the internal radius of the funnel,
r = 0.54 m.
At the bottom of the funnel,
The radius of the circular orbit is equal to the internal radius of the funnel's neck,
r = 0.040 m.
Now,
Using the conservation of angular momentum,
We can equate the angular momentum of the marble at the top of the funnel to the angular momentum of the marble at the bottom of the funnel.
[tex]I_1W_1 = 1_2W_2[/tex]
Substituting the expressions for the moment of inertia at the top and bottom of the funnel, and solving for [tex]W_2[/tex].
[tex]W_2[/tex] = [tex](I_1/I_2)[/tex][tex]W_1[/tex]
[tex]W_2[/tex] = (m[tex]r_1^2[/tex])/(m[tex]r_2^2[/tex]) [tex]W_1[/tex]
[tex]W_2[/tex] = (r1/r2)^2[tex]W_1[/tex]
[tex]W_2[/tex] = (0.54/0.040)²(0.35 rev/s)
[tex]W_2[/tex] = 36.225 rev/s
Therefore,
The marble's angular speed as it passes through the neck of the funnel is 36.225 rev/s.
Learn more about angular momentum here:
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IS THIS CORRECT???...........................
Answer:
A. consumers
B. multi-cellular
Explanation:
Only plants have chlorophyll and only plants have a cell wall so C and D are out of the window. They are consumers because, they don't have photosynthesis so they have to eat. They are multi-cellular because, animals all have at least a brain, body, etc. Which all need millions of cells.
Which statement best describes the movement of atoms in a solid?
They are able to slide past each other.
They spread apart as far as possible.
They have no freedom to move.
They are free to move in all directions
Answer:
I know I am super super late but it is C my guy :))
Explanation:
Have a nice day!!
Anybody knows this thanks !
Answer:
225J
Explanation:
1/2mvsq=1/2×50×9
Answer:
b. 225 J
Explanation:
Velocity (v) = 3 m/s
Mass (m) = 50 kg
[tex]K. E. = \frac{1}{2} m {v}^{2} \\ \\ = \frac{1}{2} \times 50 \times {3}^{2} \\ \\ = 25 \times 9 \\ \\ = 225 \: j [/tex]
A 4.0 kg 4.0kg4, point, 0, start text, k, g, end text box slides with an initial speed of 3.0 m s 3.0 s m 3, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction towards a spring on a frictionless horizontal surface. When the box hits the spring, the spring compresses and stops the box momentarily. The spring constant k = 125 N m k=125 m N k, equals, 125, start fraction, start text, N, end text, divided by, start text, m, end text, end fraction.
Answer:
x = 0.537 m
Explanation:
In this exercise we are asked to find the distance that the spring is compressed, let's use the concepts of conservation of energy
starting point. Before touching the spring
Em₀ = K = ½ m v²
final point. When the spring has maximum compression
[tex]E_{f}[/tex] = [tex]K_{e}[/tex] = ½ k x²
as there is no friction the mechanical energy is conserved
Em₀ = Em_f
½ m v² = ½ k x²
x = [tex]\sqrt{\frac{m}{k} }[/tex] v
let's calculate
x = RA[tex]\sqrt{\frac{4.0}{125} }[/tex] 3.0
x = 0.17888 3.0
x = 0.537 m
Answer:
0.54
Explanation:
You round the original number with two significant digits
0.537 has to be 0.54
Is potential energy higher at the equilibrium position?
What happens to waves near the shore?
Answer As a wave travels across the open ocean, it gains speed. When a wave reaches a shallow coastline, the wave begins to slow down due to the friction caused by the approaching shallow bottom. ... Think of it like driving a car at high speed and then slamming on the breaks. Everything is going to fly to the front.:Waves at the Shoreline: As a wave approaches the shore it slows down from drag on the bottom when water depth is less than half the wavelength (L/2). The waves get closer together and taller. ... Eventually the bottom of the wave slows drastically and the wave topples over as a breaker. hope this helps have a nice night❤️❤️❤️
Explanation:
1
A cat walks 4 meters north, 7 meters east, 4 meters south, and then 3
meters west. What is the cat's displacement? *
Answer:90+80+90=360
Explanation:10x+60–50
A total lunar eclipse is:
a. Visible only from the path of totality
b. Visible to all observers on the night time side of the earth
c. Visible only during a new moon
d. an opportunity to study the corona of the sun
Answer:
B) Visible to all observers on the night time side of the earth
Explanation:
I hope this helps.
Prompt Write about what you have learned about parts of the atom and the
Periodic Table. Explain why itis imposant to know about them.
Answer:
The table can be used to predict the properties of elements, even those that have not yet been discovered. Columns (groups) and rows (periods) indicate elements that share similar characteristics. The table makes trends in element properties apparent and easy to understand. The table provides important information used to balance chemical equations. Atoms are important because they form the basic building blocks of all visible matter in the universe. There are 92 types of atoms that exist in nature, and other types of atoms can be made in the lab. The different types of atoms are called elements. Hydrogen, gold and iron are examples of elements comprised of unique types of a single kind of atom.
Explanation:
Where is a storm surge located, in relation to the storm?
Answer:
Storm surge is the additional water, above the normal tidal ocean water, caused by the wind and low pressure of a hurricane. It is added to whatever the tide happens to be when the storm hits. If the storm hits at high tide then it’s X feet above the high tide. Tides fluctuates based upon the time of the year and the cycle of the moon.
Explanation:
Answer:
Storm surge is the additional water, above the normal tidal ocean water, caused by the wind and low pressure of a hurricane. It is added to whatever the tide happens to be when the storm hits. If the storm hits at high tide then it’s X feet above the high tide. Tides fluctuates based upon the time of the year and the cycle of the moon.
Explanation:
1 2 3 4 5 6 7 8 9 10
TIME REMAINING
09:57:20
A scientist discovers a deep bowl-like divot under the ocean off the coast of eastern Mexico that is many kilometers across. The layers of the ground all around the continent from around the time that structure formed contain large amounts of iridium and a larger number of fossils than is normally found. What most likely caused the bowl-like structure?
a meteorite impact
an asteroid impact
an iridium spike
a Kuiper object impact
Mark this and return
Answer:
answer is an ASTEROID
Explanation:
Iridium is a material that forms at very high temperatures, which is why its presence shows that in the impact zone the temperature rose a lot, so we can imagine that the impact was by a body traveling at high speed, which is consistent with a body that comes from space.
An asteroid is a celestial body of some size that when entering the atmosphere heats up and collides with the Earth, leaving a crater that in general is much larger than the diameter of the object.
A meteorite is a small fraction of an asteroid that has been separated by the pressure of the sun, the attraction of the Earth, Moon or another massive body or a combination of these effects, in general, meteorites are small and when they enter the atmosphere They are consumed by heat and very few reach the surface of the Earth, those that do reach are very small.
Therefore due to the size of the crater and the existence of many dead animals around the body must have been very heavy, so the correct answer is an ASTEROID
Answer:
B) An asteroid impact
Explanation:
please help me out here
Answer:
Explanation:
it's blocked for me...it was unblocked but you know how everything else is blocked
1)A 2.0 kilogram wooden object is a on a wooden surface. What is the maximum force of friction that can be produced in this system?
Answer:
fr = 7.84 N
Explanation:
To solve this exercise we must use Newton's second law, the case of translational equilibrium
F -fr = 0
F = fr
where F is the applied force and fr the friction force
for the Y axis
N -W =
N = W
N = m g
the friction force has the equation
fr = μ N
fr = μ m g
in this case they indicate the two materials that are in contact with wood on wood, so when reviewing the tables the coefficient of static friction is μ=0.4
let's calculate
fr = 0.4 2.0 9.8
fr = 7.84 N
Abby is writing a biography of Isaac Newton. He was a brilliant English scientist who developed the law of universal gravitation in the 1600s. Newton also developed laws of motion and ideas about inertia. His laws and ideas were used in many subjects such as physics, astronomy, and mathematics. Explain inertia using Newton's first law of motion. Give an example of inertia.
Answer:
Over several years, Newton worked until he had developed the law of universal gravitation, which debuted in his book Mathematical Principles of Natural Philosophy (1869). This idea stood until the concepts of quantum theory and relativity were posed in the mid 19th century.
Learn more about Newton's of Motion here:
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