how many cubic meters of habitable space was available in skylab?
A 1,000
B 263
C 5,263
D 10,000
361 cubic meters of habitable space was available in the skylab. None of the given options are correct.
Who launched skylab?NASA launched the first American space station, called Skylab.
The fuel tank of the Saturn SIV-B rocket stage served as the Skylab's residential quarters.
Skylab's livable capacity was large in comparison to the spacecraft that American astronauts had previously used 361 cubic meters.
Skylab offered 361 cubic meters of livable area.
Hence, none of the given options is correct.
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.89m/s A vehicle that starts to move from the rest gets an acceleration of 5m/s² within 2 seconds. Calculate the velocity and distance covered by the vehicle within the given time. [Ans: 10m/s, 10m]
Explanation:
s = ? u = 0m/s v = ? a = 5m/s² t = 2s
v = u + at
= 0 + (5 x 2)
= 10 m/s
s = ut + 1/2 at²
= (0)(2) + x [tex]\frac{1}{2}[/tex] x 5 x 2²
= 10 m
Hope this helps!
If the _ of the proteins changes, this is called a mutation
Answer:
If the DNA of the proteins changes, this is called a mutation.
Explanation: Hope it helps you :))))
Have a good day
Please answer if you know :)
Answer1. :(20/25)*200/*25 2. Increase the radius or apply the force perpendicular to the wrench
Explanation:torque =force*distance*sine of the angle between applied force and axis of wrench
Greta is on the chairlift going up the mountain when one of her skis falls off.
The ski has a mass of 5 kg and hits the snow below with a speed of 72 km/h.
How high is the chairlift above the snow when the ski falls off?
(Ignore air resistance.)
The height of the chairlift above the snow when the ski falls off is determined as 20.4 m.
Conservation of energy
The height of the chairlift is calculated from the principle of conservation of mechanical energy as shown below;
P.E = K.E
mgh = ¹/₂mv²
gh = ¹/₂v²
h = v²/2g
where;
v is speed of the ski when it hits the snow below = 72 km/h = 20 m/sg is acceleration due to gravityh = (20)²/(2 x 9.8)
h = 20.4 m
Thus, the height of the chairlift above the snow when the ski falls off is determined as 20.4 m.
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Define the term rest and motion with one example of each.
Explanation:
What is rest ?
A body is said to be rest if it does not change its position with respect to its surroundings.....Example:a book on the table .....( it does not change its position with respect to the table )
What is motion ?
A body is said to be in motion if it can change its position with respect to its surroundings....Example : a football kicked by a player.....[tex]...[/tex]
Question : What is Rest ?
Answer : An object is said to be at rest if it does not change its position with respect to its surrounding time .Example ...
StatueSleepingstaringstandingunmoved vehiclestopped clockDress kept in a hanger untouched sitting etc......Question : What is Motion ?
Answer : An object is said to be in motion if it position changes with respect to its surrounding and time .Example ....
The moving FanThe dust falling from the carpetThe water that flows from the tapa ball rolling around a moving car etc ......HOPE IT HELPS UPLEASE MARK AS { BRAINLIEST }1. can a species' niche be influenced by interspecific competition?
No, a species niche cannot be influenced by interspecific competition. Details about niche can be found below.
What is a niche?The niche of an organism in an ecosystem refers to the function within an ecological system to which an organism is especially suited.
Interspecific competition is the competition for resources between species of different organisms.
Niche of an organism is specific to that organism and this enables it avoid competition for resources in the environment.
This suggests that a species niche cannot be influenced by interspecific competition.
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Does paint and cardboard have joints in it
Why does a balloon shrink in cold water?
Answer:
The balloon shrank because the average kinetic energy of the gas molecules in a balloon decreases when the temperature decreases. This makes the molecules move more slowly and have less frequent and weaker collisions with the inside wall of the balloon, which causes the balloon to shrink a little.
Explanation:
Not only does it shrink in cold water but it shrinks in the cold itself.
Hope this helps!!
Can you explain why number 3 is correct?
Q19. Which waves would be found at the surface at regions A and C?
1. P waves
2. S waves
3. No waves
The correct answer was number 3. But I don’t know why :(
What type of motion a particle has if its velocity-time graph is as mentioned below? i) Graph is parallel to the time axis ii)Graph is a straight line passing through the origin and having a constant slope.
The velocity time graph is used to plot the velocity of a body against the time.
What is the velocity time graph?The velocity time graph is used to plot the velocity of a body against the time. The slope of this graph is called the velocity.
Now the following are true regarding the scenarios below;
Graph is parallel to the time axis - This is constant velocity
Graph is a straight line passing through the origin and having a constant slope. - There is a uniform acceleration.
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For an object on a flat surface, the force of gravity is 15 newtons downward and the normal force is 15 newtons upward. The applied force is 10 newtons toward the left and the frictional force is 8 newtons toward the right. What is the magnitude and direction of the net force?
2 newtons toward the right
2 newtons upward
2 newtons toward the left
2 newtons downward
Answer:
There is a net force of 2 N to the left.
With 8 N to the left the up/down and left/right forces are in balance.
The force left over is 2 N to the left.
Which statement about Earth’s core helps explain Earth’s magnetic field?
Earth's core is composed of iron and nickel is the correct statement about earth's core.
How earth's magnetic field is generated?Earth's magnetic field is generated by the solidification of the planet's liquid iron core. The cooling and crystallization of the core moves the surrounding liquid iron that creates powerful electric currents that generate a magnetic field.
So we can conclude that Earth's core is composed of iron and nickel.
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PLEASE HELP ASAP!!
The invention and use of the microscope showed scientists that germs could cause illness. Although there had been various understandings before for why people become ill, the discovery that microscopic germs can make people sick completely changed scientific understanding of why diseases exist and spread.
This change is an example of what?
how a law changes when new evidence disproves it
how a law stays the same as new scientific inquiries are made
how a theory changes as new areas of science open up
how a theory stays the same when new research confirms it
According to the information in the fragment, it can be inferred that it is an example of how scientific development has consequences on pre-established theories and new areas are created in science (option C)
What is a scientific theory?A scientific theory is a term to refer to a set of concepts and observations that are proposed as principles to explain a class of phenomena.
According to the above, the discovery of germs and their relationship with human diseases was an event that changed scientific theories about human diseases because it demonstrated a different explanation than what was believed up to that time.
So, the correct answer is option C because this event changed scientific theory and opened new fields for scientific study and research.
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Answer:
Explanation:
According to the information in the fragment, it can be inferred that it is an example of how scientific development has consequences on pre-established theories and new areas are created in science (option C)
What is a scientific theory?
A scientific theory is a term to refer to a set of concepts and observations that are proposed as principles to explain a class of phenomena.
According to the above, the discovery of germs and their relationship with human diseases was an event that changed scientific theories about human diseases because it demonstrated a different explanation than what was believed up to that time.
So, the correct answer is option C because this event changed scientific theory and opened new fields for scientific study and research.
Calculate the energy used by a radio of power 30W in 1 minute.
Answer:
1800 j or 1.8 kj
Explanation:
Energy used = power (measured in watts) multiplied by time (measured by seconds)
1 minute is 60 seconds
30 multiplied by 60 is 1800
Answer:
1800 joule
Explanation:
Power (P) = 30W
Time (T) = 1 min =60 sec
P =(W/T)
30 = W / 60
W = 1800 joule
We know that Energy Is equivalent to Work done. So Energy used is 1800 joule.
A 2000-kg ore car rolls 50 meters down a smooth 10o incline. There is a horizontal spring at the end of the incline designed to stop the car in case of break failure. What is the spring constant of the spring if it would compress by 1 m to stop the ore car?
The spring constant of the spring if it would compress by 1 m to stop the ore car is 340,350.4 N/m.
Potential energy of the carThe potential energy of the car is calculated as follows;
P.E = mgh
where;
h is the vertical height of the inclinesin (10) = h/L
h = L x sin(10)
P.E = mgLsin(10)
P.E = 2000 x 9.8 x 50 x sin(10)
P.E = 170,175.21
Conservation of energyThe potential energy of the car at the top of the incline will be converted to the elastic potential energy spring at the bottom of the incline.
P.E = U = ¹/₂kx²
k = (2U)/x²
k = (2 x 170,175.2)/(1)²
k = 340,350.4 N/m
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17. what does it mean if a personality
test is reliable?
a. a reliable test will give consistent
results over time.
b. a reliable test reveals forgotten
experiences.
c. a reliable test has strong personal
bias.
d. a reliable test accurately predicts?
your actions.
A Personality test is said to be reliable because (A). a reliable test will give consistent results over time.
Meaning of Personality testPersonality test can be defined as a test that can be used to verify or ascertain an individuals personality.
Personality test is a test that is carried out by different organizations to help to help them know the individuals in that organization and to help others know how to relate and work with them.
In conclusion, A Personality test is said to be reliable because a reliable test will give consistent results over time.
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Answer:
a.
Explanation:
The speed of a car increases uniformly from 6 m/s to 42 m/s in 9 second calculate the acceleration of the car
The acceleration of the car which changes the speed uniformly is 4 m/s²
What is acceleration?Acceleration can be defined as the rate change of velocity with time.
acceleration a = (Δv) / (Δt)
Given is the initial velocity 6m/s and final velocity 42m/s, the time take fir this change in speed is 9s.
Substitute the values, we have
a = (42-6)/9
a = 36/9
a =4 m/s²
Thus, the acceleration is 4 m/s²
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If you wanted to
reduce the resistance
in a circuit, what
should you do?
A. increase the length of the wire
B. replace a steel wire with a copper wire
C. replace a wide wire with a thin wire
Answer:
Option C
Explanation:
According to the formula
[tex]\\ \boxed{\sf R=\rho\dfrac{\ell}{A}}[/tex]So
If we use wide wire we increase the area of cross section so resistance decreases
a heavenly body has a mass equal to half of the mass of the earth and its radius half as that of the earth . if a stone weight 100N on the surface of the earth , find the weight of the stone on the heavenly body.
The stone on the celestial body will be 50 N in weight. When the mass of a celestial body equals half of the mass of the earth.
What is the difference between mass and weight?The mass of the body is defined as the amount of matter a body has. It is denoted by m and its unit is kg.
Weight is defined as the amount of force an object exerts on the surface. It is given as the product of mass and the gravitational pull.
Given data:
[tex]\rm m_h = \frac{1}{2} m_E[/tex]
[tex]\rm r_h=\frac{1}{2} r_E[/tex]
[tex]\rm W_E = 100 \ N[/tex]
The weight of the body on earth is found as;
[tex]\rm W_E = m_Eg[/tex]
Substitute all the values:
[tex]\rm W_E = m_Eg \\\\\ 100 \ N = 2 m_hg \\\\ m_hg =50 \ N \\\\ W_h = 50 \ N[/tex]
Hence, the weight of the stone on the heavenly body will be 50 N.
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how does the egg drop project apply to everyday life
Answer:
Explanation:
It apply on how you will protect the egg because you protect the egg at all cost. It's very similar on who is protecting you, You need someone to be there for you always because an egg can't survive on it's own. Just like your life your can't be always rolling around like an egg you need to be safe and always with the person who cares for you. An egg is safe when they are together in a tray just like family and friends.
As stream discharge increases ________. only velocity increases velocity, width, and depth increase velocity, width, and depth decrease only depth increases
As stream discharge increases, only velocity increases.
What is discharge?The discharge or volume flow rate is defined as the product of the velocity of the fluid and the area of cross- section of the pipe or tube.
Discharge Q = Area A x Velocity V
Q = AV
The discharge is directly proportional to the velocity of the fluid. When discharge increases, velocity is the only physical quantity that can be changed.
Thus, As stream discharge increases, only velocity increases.
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the average power transferred to the solar panels by sunlight is 26 000 w
calculate the average energy transferred to the solar panels in 30 seconde
use the equations
energy transferred = power time
Answer:
P = E / t definition of power is energy / unit time
1 W = 1 Joule / sec definition of 1 Watt of power
E = 2.6E4 J/s * 30 s = 7.8E5 Joules = 780,000 Joules
The average power transferred to the solar panels by sunlight is 26 000 w. The average energy transferred to the solar panels in 30 seconds is 780,000 joules.
To calculate the average energy transferred to the solar panels in 30 seconds, we can use the equation:
Energy transferred = Power × Time
Given that the average power transferred to the solar panels is 26,000 watts and the time is 30 seconds, we can substitute these values into the equation:
Energy transferred = Power × Time
Energy transferred = 26,000 × 30
Energy transferred = 780,000 watt-seconds
Since the watt-second is equivalent to the joule (J), the energy transferred to the solar panels is 780,000 joules.
Therefore, the average energy transferred to the solar panels in 30 seconds is 780,000 joules.
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Which statement belongs to daltons atomic theory
Atoms cannot be broken down into smaller pieces is the statement belongs to daltons atomic theory. Option B is correct.
What is an atom?The atom consists of matter that may be split without releasing electrical charges. It's also the smallest unit of matter with chemical element features.
The complete question is:
"Which statements belong to Dalton's atomic theory? Select all that apply.
A)Atoms cannot be created or destroyed.
B)Atoms cannot be broken down into smaller pieces.
C)All atoms of an element are identical.
D)Chemical reactions cause atoms to be rearranged."
According to Dalton's atomic hypothesis, atoms cannot be broken down into smaller bits.
Hence, option B is correct.
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A car is moving along a straight line op is shown below it moves from O to P in 8sec and return to p to q in 6sec. What is the average velocity and the speed of the car
Answer:
The answer would be A
Explanation:
The new horizons spacecraft, launched in 2006, spent 9.5 years on its journey to pluto. it derives its electric power from the heat generated by 10 kg of , which has an activity of . each decay emits an alpha particle with an energy of 5.6 mev. what is the total thermal power generated by this plutonium source
The total thermal power generated by this plutonium source is determined as 5.65 J/s.
Total thermal power generatedThe total thermal power generated by this plutonium source is determined as follows;
ΔP = Eλ
where;
E is the energy of the particles = 5.6 mevλ is the activity of the plutonium, which should be = 6.3 x 10¹⁵ s⁻¹ΔP = (5.6 mev) x (6.3 x 10¹⁵ s⁻¹)
ΔP = (5.6 x 10³ x 1.6 x 10⁻¹⁹ J) x (6.3 x 10¹⁵ s⁻¹)
ΔP = 5.65 J/s
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A snail is traveling along a straight path. The snail’s velocity can be modeled by
The acceleration of the snail will be 7/13 m/sec². The acceleration is found as the rate of change of the velocity.
What is acceleration?The rate of change of velocity with respect to time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.
The given data in the problem is;
v(t)=1.4ln(1’t²) inches per minute
0<t<15 minute
Acceleration is found as;
[tex]\rm v('t)=1.4 \times \frac{1}{1+t^2} (2t)[/tex]
Acceleration at t= 5 minute;
[tex]\rm v'(5)=\frac{1.4(2)(5)}{1+5^2} =\frac{14}{26} \\\\ v'=\frac{7}{13}[/tex]
Hence, the acceleration of the snail will be 7/13 inch per square minute.
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What is the direction of a current that experiences the magnetic force shown above
east
south
north
west
Answer: Up
Explanation:
What's manifestation
Answer:
Explanation:
the action or fact of showing an abstract idea.
(◑.◑)!
Manifestation (or manifesting) refers to
various pseudoscientific self-help
strategies intended to burning about
a personal goal, primary by focusing
one's thought upon the desired outcome.
The techniques are based on the law
of attraction of New Thought spiritually.
While the process involves positive
thinking, or even directing request to
"the universe", it also involves
action-steps on the part of the individual.
Manifestation has been criticised as
having no basis in physical science.
Alison Bernstein, a professor of
translational neuroscience at Michigan
State University said in an interview
with Vice that "You can't magically
make things happen. You can [However]
change the way you react to certain
situations, which sounds to me like
Cognitive Behavioral Therapy". She
want no to assert that "manifestation
is not supported by science.
the unit of energy is a derived unit give reasons.
Answer:
ioinl
Explanation: