Answer:
NASA's research goals for the space station are driven by the NASA Authorization Act of 2010 and are focused on the following four areas: human health and exploration, technology testing for enabling future exploration, research in basic life and physical sciences, and Earth and space science.
HOPE THIS HELPS!!!!
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:
Answer:
displacement = 23.32m___________________FOLLOW MEWhich descriptions did you include in your response? Check all that apply. The shape of the bowling ball is round. The color of the bowling ball is red. The bowling ball is hard. The bowling ball is smooth.
Answer:
True a, c and d
Explanation:
The correct statements that should be included in the answers are:
a) True. Bowling balls are round
b) False. The balls have different colors
c) True. If the balls are made of a very hard material
d) True. If the balls have a smooth polished surface at the same time, but not soft
How long does it take for Earth to make one rotation on its axis?
OA.
1 year
ОВ.
1 day
OC.
1 hour
OD
1 month
Explanation:
ob 1 day
1day is the answer
Which of the following involves the emission of a particle that has the same mass of an electron with a positive charge.
a.
alpha decay
c.
positron emission
b.
beta decay
d.
nuclear forces
Answer:
The proper answer for this question would be B. Beta Decay
Explanation:
I hope this helps
you've been tired and lethargy what are two possible reasons?
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.
help = brainlist pls
Answer:
A) the liquid particals move slower
Explanation:
vapor has a higher temp and have more energy than liquid so it's not c or d. and liquid has a lower boiling point than vapor
Which of the following correctly describes the relationship between speed and velocity?
A. Speed is the change in velocity over time; velocity is distance plus direction.
B. Speed is the change in distance over time; velocity is speed plus direction.
C. Speed is distance plus direction; velocity is speed plus time.
D. Speed is the change in acceleration; velocity is distance over time.
Answer:
Option B.
Explanation:
As speed is scalar quantity it isn't concerned with direction. But Velocity is a vector quantity that defines change of displacement with time and depends upon direction travelled too.
What is the Eg, Ek, and Ediss of a skier starting at an elevation of 40m and ending at 0m elevation
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
What is momentum equal to?
A. Force times velocity
B. Mass times acceleration
C. Force times acceleration
D. Mass times velocity
Answer:
D
Explanation:
mass times velocity
hope this help
Momentum is equal to mass times velocity. Therefore, option (D) is correct.
What is momentum?Momentum can be defined as the product of mass and velocity of object. Momentum can be defined as a standard mechanical quantity. Momentum can be considered as a vector quantity, exhibiting a magnitude and a direction.
If m is a body's mass and v is its velocity, then the body's momentum p is :
[tex]{\displaystyle \mathbf {p} =m\mathbf {v}[/tex]
In the System of Units (S.I.), the measurement unit of momentum is the kilogram meter per second (kg⋅m/s) or newton-second.
Newton's 2nd law of motion can be described as the rate of change in the momentum being equal to the net force acting. Momentum depends on the frame of reference, if a closed system is not affected by external forces, its total linear momentum will be conserved.
The unit of momentum can be described as the multiplication of the units of mass and velocity. In SI units the momentum is kg⋅m/s.
Learn more about momentum, here:
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If an object is at rest on an inclined plane, which of the following forces is greatest?
Answer:
which of the following what, you didn't include the options
What is the definition of the half-life of a radioactive isotope?
A. The time it takes for half the parent nuclei in a sample to become
daughter nuclei
B. The time it takes for all the parent nuclei in a sample to become
daughter nuclei
C. The time it takes for all the daughter nuclei in a sarnple to become
parent nuclei
D. The time it takes for half the daughter nuclei in a sample to
become parent nuclei
Answer:
A
Explanation:
The amount of time necessary for half of anything to go through a process, such the amount of time needed for half of a radioactive substance's atoms to decay. Thus, option A is correct.
What half-life of a radioactive isotope?The period of time it takes for one-half of a radioactive isotope to decay is known as the half-life. An individual radioactive isotope's half-life is unaffected by environmental factors and is independent of the isotope's starting concentration.
Radiation emission stops after an atom achieves energy stability through radiation. A radionuclide's concentration falls over time, and its radioactivity declines. A (physical) half-life is the length of time required for radioactivity to degrade and diminish to half.
Therefore, The time it takes for half the parent nuclei in a sample to become daughter nuclei.
Learn more about isotope here:
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Use the particle model to explain which state of matter can be compressed.
Explanation:
Gases: flow and completely fill their container, because their particles can move quickly in all directions. can be compressed, because their particles are far apart and have space to move into.
Hope this is fine for youexplain why water comes to your mouth when you suek water in glass using drinking straw
Explanation:
now you know how it works
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
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
You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?
pls show equation
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:
3. Is the relationship between the gravitational force and the mass directly proportional or
inversely proportional?
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.
why can't i tell my crush how i feel
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.
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?
Answer:
20m/s
Explanation:
Alex's acceleration is also Alex speed
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:
What word
When an object is vibrating, we say that it has energy in its kinetic energy___
completes the sentence?
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.
Suppose a scoentist was able to construct a barometer with a liquid being denser than mercury , then how high would the liquid raise at standard pressure
Answer:
the liquid has less height than the mercury
h_{ liquid} = [tex]\frac{\rho_{Hg} }{\rho_{liqid}} \ h_{Hg}[/tex]
Explanation:
The pressure as a function of the height is given by
P = ρ g h
where ρ is the density of the liquid, g the acceleration of gravity and h the height reached by the column of the liquid
In that case they say that the pressure is the standard one that is P = 1.01 10⁵ Pa = 760 mmHg
The first way to give the pressure is in SI units and the second way is the height that the mercury column reaches
In the case of building a barometer with a liquid that has a density greater than that of mercury
ρ_liquid > ρ_Hg
the pressure
P =ρ_lquid g h_liquid
if we have the same pressure
ρ_{Hg} g h_{Hg} = ρ_{liquid} g h_{liquid}
h_{ liquid} = [tex]\frac{\rho_{Hg} }{\rho_{liqid}} \ h_{Hg}[/tex]
therefore the liquid has less height than the mercury
Please help ASAP please
Answer:
Explanat WRITE A ONE PAGE ESSAY TO EXPLAIN THE AUTHOR'S PURPOSE IN WRITING HOM SMART ARE ANIMAL
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
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
How many complete wavelengths are shown in this image? Do not count any partial wavelengths.
7
4
1
3
Answer:3
Explanation: I just took the quiz
The distance between two successive troughs or crests is known as the wavelength There are 3 complete wavelengths are shown in this image.
What is wavelength?The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.
The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.
The length of a wave is measured in its propagation direction. The wavelength is measured in meters, centimeters, nanometres, and other units since it is a distance measurement.
Hence Option D is correct. There are 3 complete wavelengths are shown in this image.
To learn more about the wavelength refer to the link;
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Which term describes the radiation produced by alpha decay?
A. A beta particle
B. An electromagnetic wave
C. A helium nucleus
D. An electron
Answer:
C. Helium nucleus
Explanation:
During alpha decay, a radioactive atom releases an alpha particle that is equivalent to the nucleus of a helium atom.
Answer:
Person above me is correct C. Helium Necleus
Explanation:
pls help me 6th grade science second two pics are the possible answers
Answer:
C
Explanation:
Plotting the data points would get the graph closest to C
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
Can someone please answer question 3. file:///home/chronos/u-9fbe4d6cd4075c0280959ac605b2bf44f6ff5077/MyFiles/Downloads/SHM%20Free%20Response.pdf
Consider the following problems and classify them by whether you would want to use a scalar, vector, or
series of vectors to correctly describe the answer you would need. You may use your understanding of vectors
and scalars to connect each problem to its proper classification.
Answer:
Scalar :
How far does a truck travel on a road from Albuquerque to Chicago?
What is the speed of a squirrel running with an acorn in its mouth?
What is the temperature of a jumbo jet flying through the air?
Vector:
What is the net force on a fashion model walking down the runway?
How would a bird fly from Albuquerque to Chicago?
Series of vectors:
What are the component forces on a long-distance runner?
What is the path that a dandelion seed travels?
Explanation: