The slope of the line connecting the points (9, -8) and (-9, -7) will be
- 0.056
x1 = 9
y1 = -8
x2 = -9
y2 = -7
m = ( y2 - y1 ) / ( x2 - x1 )
= -7 + 8 / -9 - 9
= 1 / - 18 = - 0.056
The slope of the position vs. time graph will be - 0.056
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What are the differences between ohmic and non-ohmic conductors?
Answer:
The difference between ohmic and non-ohmic conductor is that an Ohmic conductors have linear relationship between voltage and current, whereas the non-Ohmic conductors do not have linear relationship between voltage and current. The conductor is whether ohmic or non ohmic can be verified with Ohm's law.
Explanation:
An empty truck whose mass is 2000 kg has a maximum
acceleration of 1.0 m/s2. What is its maximum acceleration
when it is carrying a 1000-kg load?
The maximum acceleration of the truck when it carries load of 1000 kg is 0.67 m/s².
How do you find acceleration with kg and force?The rate at which an object's velocity along the same straight line as the unbalanced force changes is known as its acceleration. There is no net force and hence no movement when the forces are in balance. These three concepts are related by Newton's second law, which also addresses how an imbalanced force affects an object's motion. According to this, an object's rate of change in velocity is directly proportional to the force used and moves in the direction of the applied force. The following formula encapsulates it: force (N) = mass (kg) x acceleration (m/s2).The mass of two objects and the separation between their centers affect how much gravity there is between them.Given data :
Force moving the truck = empty truck mass x max. acceleration
= 2,000 kg x 1 m/s²
= 2,000 N
The force will remain the same even with a load of 1,000 kg because that is the maximum force the truck is capable of producing.
Therefore,
2,000 N = mass with load x acceleration
2,000 N = (2,000 kg + 1,000 kg) * acceleration
2,000 N = 3,000 kg × acceleration
=> acceleration = 2,000 N / 3,000 kg
=> acceleration = 0.67 m/s²
Its maximum acceleration will be 0.67 m/s².
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an automobile traveling at 60.5 km/h has tires of 52.2 cm diameter. what is the angular speed of the tires about their axles?
The angular speed of the tires with 52.2 cm diameter about their axles if the automobile is traveling at 60.5 km/h is 64.65 rad / s
v = r ω
v = Linear / Tangential velocity
r = Radius
ω = Angular velocity
v = 60.5 km / h = 16.81 m / s
r = 52.2 / 2 cm = 26.1 cm
r = 0.26 m
ω = v / r
ω = 16.81 / 0.26
ω = 64.65 rad / s
Therefore, the angular speed of the tires about their axles is 64.65 rad / s
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How does electron pair repulsion determine the molecular shape/molecule geometry?.
The molecular shape or molecular geometry of electron pair repulsion is determined by the no of electron pair present.
What is electron?The lightest known stable subatomic particle is the electron. It has an equal negative charge to that of 1.602176634 coulombs, which is regarded as the fundamental unit of electric charge. Only 1/1,836 of a proton's mass, or 9.1093837015 1031 kg, is present in the rest mass of the electron.
As a result, compared to a proton or neutron, an electron is thought to be almost massless, and its matter is not taken into account when determining an atom's mass number.
The quantity of electron pairs in a molecule affects its form. Electron pair interactions are typically repulsive. Electron couples align themselves to reduce their attraction to one another. It is assumed that the valence, or outermost, electron shell, is spherical
Therefore, the molecular shape or molecular geometry of electron pair repulsion is determined by the no of electron pair present.
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In a movie production, a stunt person must leap from a balcony of one building to a balcony 3. 0 m lower on another building. If the buildings are 2. 0 m apart, what is the minimum horizontal velocity the stunt person must have to accomplish the jump? assume no air resistance and that ay = -g = -9. 81 m/s2.
This inquiry deals with the idea of semi-projectile motion. The equations for horizontal and vertical motion can be used to solve it.
"2.6 m/s" is the bare minimum horizontal velocity needed.
We'll start by examining the stunt person's vertical motion. To determine the motion's time interval, we shall apply the second equation of motion in the vertical direction.
You are looking for Vx0 (initial velocity in the X direction) use this formula
remember there is no acceleration in x direction, only Y
X = x0 + Vx0(t) + (1/2)at^2
X= 0 + Vx0 (t) + 0
x= Vx0 (t)
Vx0 = x/t
what we are missing is Time, so u can get this by using the Y formula to find the time
Remember there is no velocity in the Y direction
Y=y0 + Vy0(t) - (1/2)gt^2
y= 0 +0 - (1/2)gt^2
(3.0 m *2) / 9.80m/s/s = t^2
0.61224 = t^2
t = 0.78 s
now plug this time back into this formula from above
Vx0 = x/t
= 2.0m / 0.78s
=2.6 m/s
Hence the minimum horizontal velocity is 2.6m/s
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Suppose the force of gravity on the earth is
10m/s2 and on the moon is 2m/s². If the
weight of an object on the earth is 200N
What will be its weight on the moon.
If the weight of an object on the earth is 200N, its weight on the moon will be 40 N
W = m g
W = Weight
m = Mass
g = Acceleration due to gravity
In Earth,
W = 200 N
g = 10 m / s²
m = W / g
m = 200 / 10
m = 20 kg
In moon,
g = 2 m / s²
W = 20 * 2
W = 40 N
Therefore, if the weight of an object on the earth is 200N, its weight on the moon will be 40 N
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Two people carry a heavy electric motor (M) by placing it on a board 2.0 m long that weighs 200 N. one person A lifts at one end with a force of 400 N. and the other B lifts the opposite end with a force of 600 N. The distance from A where the centre of gravity of the motor is located is
An electric motor is a device used to convert electricity into mechanical energy—opposite to an electric generator.
What is electric motor and types?We know there are generally two types of motors, AC motor, and DC motor. AC motors are flexible for speed control and demand low power during start. On the other hand, DC motors are widely used due to its initial cost of low power units is less compared to AC and can be easily installed.An electric motor is a device which converts electrical energy into mechanical energy. There are mainly two types of electric motors: A DC motor or an AC motor, depending upon their power supplies. When electric current is passed into a rectangular coil, the current produces a magnetic field around that coil.They operate using principles of electromagnetism, which shows that a force is applied when an electric current is present in a magnetic field.(A) The weight of the motor should be considered as the 1000 N.
(B) It should be located like 1.2 m from the 400 N force.
Since
length of the board (R) = 2 m
force at one end (F1) = 400 N
force at other end (F2) = 600 N
Here we assume following things
let the distance of force F1 from the motor be = r
let the distance of force F2 from the motor be = r
So, r + r' = 2 m
a. here the weight should be
= 600 + 400
= 1000 N
b.
Since
F1 x r = F2 x r'
So,
here we have to recall that r + r' = 2
r' = 2 - r
now substituting r' = 2 -r into the equation
F1 x r = F2 x (2 - r)
So,
400r = 600(2-r)
400r = 1200 - 600r
400r + 600r = 1200
1000r = 1200
r = 1200/1000
r = 1.2 m
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suppose the wavelength of the light is 470 nm . how much farther is it from the dot on the screen in the center of fringe e to the left slit than it is from the dot to the right slit?
The dot on the screen in the center of the fringe e to the left slit than it is from the dot to the right slit is 940 nm.
The wavelength of mild is defined as. It is far denoted with the aid of the Greek letter lambda (λ). consequently, the space between both one crest or trough of one wave and the next wave is known as wavelength.
A bright fringe creates constructive interference, the wavelength is always in multiple forms.
At the center fringe, the difference is (470 nm)(0) = 0
For the first maximum, the difference is (470 nm)(1) = 470 nm
For the second maximum, the difference = (470 nm)(2) = 940 nm
Thus, for nth maxima, the difference is (470 nm)(n)
From the image uploaded, C is located on the second maximum, therefore the difference is given as (470 nm)(2) = 940 nm
Therefore, the dot on the screen in the center of the fringe is 940 nm.
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How many joules are needed to change the temperature of 100 g of water from 20 c to 40 c?.
To raise the temperature of 100g of water from 20C to 40C, 8.4k joules are required.
A joule is the amount of energy expended when a one-newton force is exerted across a one-meter distance. One joule is equal to one watt of electricity emitted or lost over the course of one second.
One joule is therefore not a lot of energy. The kilojoule (kJ), which has a value of 1,000 J per kilojoule, serves as the standard unit of energy since it is typical to measure energies in thousands of joules. The use of calories in nutrition is one such instance. A calorie is a common unit of measurement for dietary energy content.
A joule of energy transmitted to an object is equal to one newton of force. Additionally, it gauges energy.
It, therefore, has 8.4k joules.
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In a materials testing laboratory, a metal wire made from a new alloy is found to break when a tensile force of 94.2N is applied perpendicular to each end. If the diameter of the wire is 1.25mm , what is the breaking stress of the alloy? P=? Pa
The breaking stress of the alloy is 74.131 MPa
Stress = force/cross sectional area
= 94.2/(3.14*(0.00125^2)/4) = 73131210 Pa = 74.131 MPa
The amount of forces that induce deformation is measured in terms of stress. Force per unit area is a common definition of stress. Tensile stress is the term used to describe a force that pulls on an object and causes it to elongate, much as how an elastic band stretches. Compressive stress is what we refer to when forces cause an object to compress. Bulk stress is the term used to describe pressure exerted on an object from all sides, such as a submarine submerged in water (or volume stress). In some circumstances, the operating forces might not be tensile or compressive but yet result in an observable deformation. Imagine, for instance, that you are tightly gripping a book with one of your hands.
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How much pressure (absolute) must a submarine withstand at a depth of 120. 0 m in the ocean?.
Answer:
Explanation:
Given:
ρ = 1 030 kg/m³ - Salt water density
h = 120.0 m - Submergence depth of the submarine
_____________________________
p - ?
Pressure:
p = ρ·g·h
p = 1030·9.8·120.0 ≈ 12·10⁶ Pa or p = 12 MPa
An object with mass m is attached to the end of a string and is raised vertically at a constant acceleration of g 8. If it has been raised a distance l from rest, how much work has been done by the tension in the string?.
Work is depend on fore and distance.
What is work?
Work is defined as the energy that is applied to or removed from an object by applying force along a displacement. In its simplest form, it equals the product of the force's magnitude and the distance travelled for a constant force directed in the direction of motion.
Sum of forces:
∑F = ma
T − Mg = M (g/4)
T = 5/4 Mg
Work = force × distance
W = Tℓ
W = 5/4 MgℓSum of forces:
∑F = ma
T − Mg = M (g/4)
T = 5/4 Mg
Work = force × distance
W = Tℓ
W = 5/4 Mgℓv
Hence, the work has ben done by the tension in te string is 5/4 Mgℓv
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which statement is true about simple machines? responses they increase the work done. they increase the work done. they reduce the amount of work required. they reduce the amount of work required. they make work easier. they make work easier. they require the same amount of force.
The correct option is "they makes the work easier".
Machines make work easier even if they still require the same amount of work to be done.
We humans get tired because we do not have constant source of energy for the work to be done.
Machines have a constant source of energy such as electricity.
Humans too will work at the same rate without getting tired if they are also provided with constant energy.
What is a Machine?
A machine is a physical system that use power to exert forces, control motion, and perform an action. The phrase is widely used to describe man-made systems that utilize engines or motors, in addition to naturally existing biological macromolecules like molecular machines. Humans, animals, and unnatural forces like wind and water can all propel machines.
Chemical, thermal, or electricity may also be used to propel them. The actuator input of these machines is often shaped by a set of mechanisms to create a certain set of output forces and movements. They may also have mechanical components that monitor activity and plan movement. These components are typically referred to as computers and sensors.
Therefore, the machines help in making the work easier.
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a wooden log that weighs 1.00 kg is placed in a fireplace. once lit, it is allowed to burn until there are only traces of ash, weighing 0.04 kg, left. which best describes the flow of energy?
The potential energy of the wooden log was converted into the kinetic energy of heat and light.
Potential energy is energy that is saved or conserved in an object or substance. This saved energy is based totally on the location, association or country of the object or substance. You could consider it as energy that has the potential to do work.
An item can store energy as the result of its function. for instance, the heavy ball of a demolition machine is storing power when it is held at an accelerated function. This saved electricity of role is known as capability electricity. similarly, a drawn bow is able to keep energy as the end result of its role.
Potential energy refers to the saved electricity within an item that exists due to the item's function, kingdom, or association. It's one of the number one types of energy the opposite is kinetic energy. The saved electricity is released when the position, kingdom, or association of the object changes.
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Suppose a distant galaxy has a recessional velocity of 8254 km/s. What is its distance given that the hubble constant is 70 km/s/mpc?.
Its distance given that the hubble constant is 70 km/s/mpc , is 117.91 Mpc.
What is hubble constant ?
Finding the true value of the Hubble constant is one of the greatest challenges in modern astronomy and could revolutionize our understanding of the universe. As such, scientists at the University of Chicago and many institutions around the world are trying to determine the numbers using multiple methods.
For a celestial body (such as a star or galaxy) at a known distance from Earth, you can use the Hubble constant to predict how fast it is moving away from Earth.
However, the true value of the Hubble constant is debatable. Based on the underlying physics that scientists believe drives the evolution of the universe, the Hubble constant should be about 68 km/s/Mpc, which is what astronomers see around us. does not match observations of real stars and galaxies in the sky. A team led by UChicago astronomer Wendy Freedman made 72 landmark measurements in 2001. The most recent accurate measurements of the distance and motion of a distant exploding star show the Hubble constant to be 69.8 km/s/Mpc, whereas other reports place this figure at 74 km/ Pushing up to s/Mpc.
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Two baby buggies are moving toward a head-on collision on level ground. The first buggy has a mass of 15 kg and is moving at a speed of 3 m/s. The second buggy has a mass of 15 kg and is moving at a speed of 5 m/s. The rugged rubber bumpers that are normally attached to the buggies have fallen off so that when they collide, they stick together. How fast (magnitude) are the buggies moving right after the collision?.
The buggies moving right after the collision will move at 5m/s and 3 m/s respectively.
An elastic collision is a collision in which there is no internet loss in kinetic energy within the gadget because of the collision. each momentum and kinetic electricity are conserved portions in elastic collisions.
Calculation:-
Since both, the biggie shave the same mass then according to the elastic collision their velocity will exchange upon each other
mass 1 = 15 kg
mass 2 = 15 kg
Velocity before collision
V1 = 3m/s
V2 = 5 m/s
Velocity after collision
V1 = 5 m/s
V2 = 3 m/s
Elastic collisions arise whilst both the momentum and kinetic energy are conserved, just like how billiard balls bounce off each different and move at the same speeds as earlier. Inelastic collisions appear whilst simplest the momentum is conserved but not the kinetic power.
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The critical angle for a substance in air is measured at 53. 7°. If light enters this substance from air at 45. 0° with the normal, at what angle with the normal will it continue to travel?.
The light will continue to travel at 34.8° with the normal. The result is obtained by using the Snell's Law.
What is Snell's Law?The Snell's Law is a formula to describe the relationship between the angles of incidence and refraction when a light passes through two medias. It can be expressed as
ni / nr = sin θr / sin θi
Where
ni = incident indexnr = refracted indexθi = incident angleθr = refracted angleNote that the angles are measured from the normal line.
The critical angle can be expressed as
sin θc = ni / nr
If the critical angle is 53.7° and the light enters the substance from air at 45.0° with the normal, what angle with the normal will it continue to travel?
We can combine the above two formulas to find the refracted angle.
ni / nr = sin θr / sin θi
sin θc = sin θr / sin θi
sin 53.7° = sin θr / sin 45°
0.806 = sin θr / 0.707
sin θr = 0.707 × 0.806
sin θr = 0.570
θr = 34.8°
Hence, the light will continue to travel at 34.8° with the normal.
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The ball is motionless and has a mass of 3. 56 kilograms. What is the magnitude of the tension force on the string, rounded to the nearest whole number?.
The tension force on the string with a ball of mass 3.56 kg attached to it is 35 N.
What is tension force?Tension force is defined as the force transmitted through a rope, string or wire when pulled by forces acting from opposite sides.
To calculate the tension force in the string, we use the formula below.
Formula:
T = mg........... Equation 1Where:
T = Tension force in the stringm = Mass attached to the stringg = Acceleration due to gravityFrom the question,
Given:
m = 3.56 kgg = 9.8 m/s²Substitute these values into equation 1
T = 3.56×9.8T = 34.88T = 35 NHence, the tension force on the string is 35 N.
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A 1 200 kg car travels along the road. Calculate its kinetic energy at: 54 km.h-¹
Answer:
Explanation:
Given:
m = 1 200 kg
V = 54 km/h = 15 m/s
___________
Wk - ?
Wk = m·V² / 2
Wk = 1200·15² / 2 = 270 000 J or Wk = 270 kJ
a person on top of a cliff throws a rock horizontal from a height of 9.33 m above the water below with an initial speed of 7.01 m/s. what is the speed of the rock the instant before it hits the water?
The speed of the rock right before it hits the water is 15.23 m/s.
The speed of the rock should follow a uniform motion. Uniform motion is an object's motion under acceleration. It should follow the rule
v' = v + a . t
v'² = v² + 2a . s
s = v . t + 1/2 . a . t²
where v' is final velocity, v is initial velocity, a is acceleration, t is time and s is displacement.
From the question above, we know that
s = 9.33 m
v = 7.01 m/s
a = g = 9.8 m/s²
By using the second equation, we can calculate the speed of the rock right before it hits the water
v'² = v² + 2a . s
v'² = 7.01² + 2 . 9.8 . 9.33
v'² = 232.0081
v' = 15.23 m/s
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consider a thermocouple circuit made with copper (cu) and constantan (c) wires. the seebeck coefficients of copper and constantan are
The reading of voltmeter of a thermocouple circuit made with copper (cu) and constantan (c) wires is 8791μV.
We have Seebeck coefficients of copper and constantan, also we have temperature of source as 25°C and temperature of ice is 0°C
We also know that Seebeck coefficient is given by the negative of ratio of change in voltage to the change in temperature, or in other words
S= -ΔV/ΔT
Now, Seebeck coefficient of copper(6.5μV/K) and Seebeck coefficient of constantan as -35 μV/K
Therefore, net Seebeck coefficient of thermocouple is =6.5+(-35)= -29.5 μV/K
Now, temperature difference is 25°C as temperature of ice is 0°C
We need to convert degree in kelvin as standard calculations involves temperature in kelvin.
We use K=C+273
Therefore, temperature difference is =25+273=298K
Therefore, according to the formula, we get
Voltage= - net Seebeck coefficient × net temperature change
=>V= -(-29.5μV/K×298K)
=>V=8791μV
Hence, voltmeter reads 8791μV.
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(Complete question) is :
Consider a thermocouple circuit made with copper (Cu) and constantan (C) wires. The Seebeck coefficients of copper and constantan are: Acu=6.5 μV/K, ac=-35 μV/K. If T1 = 25°C, what's the reading of Voltmeter?
What is the resistance in a light bulb that has a 61 Volt battery and a current of 12 Amps?
Answer:
5.1 Ω
Explanation:
Basic Law v = ir
so v/i = r = 61/12 = 5.1 Ω
the maximum force a grocery sack can withstand and not rip is 250 n. if 20.0 kg of groceries are llifted from the floor to the table with an acceleration of 5.0 m/s^2, will the sack hold?
No, the bag does not hold in case of the maximum force a grocery sack can withstand and not rip is 250 n. if 20.0 kg of groceries are lifted from the floor to the table with an acceleration of 5.0 m/s^2.
Define newtons second law of motion?The second law of motion of Newton describes how things behave when all external forces are not equal. The second rule states that an object's acceleration depends on both its mass and the net force acting on it. The acceleration of an item is defined by the net force acting on it and is inversely related to its mass.
Given,
Fₓ = 250
m = 20kg
[tex]a_{gravity}[/tex] = 9.81 m/s2
[tex]a_{pull}[/tex] = 5 m/s2
Fₙ = m(a+g)
Fₙ = 20 kg ( 5 m/s2 + 9.81 m/s2)
Fₙ = 20 (14.81)
Fₙ = 296.2
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For what wavelength of light will the first-order dark fringe (the first dark fringe next to a central maximum) be observed at this same point on the screen?.
The wavelength of light will the first-order dark fringe is 1.205 μm.
Calculation:-
We know that, for the 1st order dark fringe, we have
y(dark,0 )= ( 0 + 1/2)*λ*L/d
0.00484 m =( 0.5*λ*3 ) /0.00037376
= λ =( 0.00484*0.00037376)/(0.5*3)
= λ = 1205*10^-9 m
= 1.205 μm
The wavelength of light determines its color and the wavelength of sound determines its pitch. Wavelength is the gap among two wave crests and the equal for wave troughs. Frequency is the variety of oscillations that bypass through a specific point in a single 2d, measured in cycles according to 2nd. the distance among peaks is called the wavelength.
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For all three titrations for experiment #1 list the total volume of naoh used to reach the end point and calculate the concentration of sodium hydroxide. What was the mass of benzoic acid used for each titration? what is the average value of sodium hydroxide?.
0.03M is the concentration of sodium hydroxide.
Here from calculation concentration of NaOH -
100×0.019/ 20 = .095 M
For acetic acid-
Volume acid used, V1= 25 ml
Concentration of acetic acid N1= ?
Volume of NaOH used, V2 = 8.99 ml
Concentration of NaOH used, N2= .095 M
From N1×V1= N2×V2
N1 = N2×V2 / V1
N1 = .095 × 8.99/25
N1 = 0.03M
concentration is the quantity of a material in a certain area. The ratio of the solute in a solution to the solvent or whole solution is another way to define concentration. In order to indicate concentration, mass per unit volume is typically used. The solute concentration can, however, alternatively be stated in moles or volumetric units. Concentration may be expressed as per unit mass rather than volume. Although concentration is often used to describe chemical solutions, it may be computed for any combination.
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) consider a set of points, where most points are in regions of low density, but a few points are in regions of high density. if we define an anomaly as a point in a region of low density, then most points will be classified as anomalies. is this an appropriate use of the density-based definition of an anomaly or should the definition be modified in some way?
An outlier detection technique based on density Finding data items with behavior that deviates significantly from expectations is the process of outlier detection, sometimes referred to as anomaly detection.
These things are referred to as anomalies or outliers. Another helpful unsupervised machine learning approach is LOF, which instead of evaluating the full data distribution to identify outliers, does it in relation to particular neighborhoods ( Brewing et al., 2000 ). The nearest neighbor search is used by the density-based LOF technique to find the anomalous spots.
Anomaly detection methods, sometimes referred to as outlier detection, are becoming more and more common in the data mining industry nowadays.
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Which analogy best explains why inflation predicts that the overall geometry of the observable universe should appear to be flat?.
Because of how large Earth is, an ant's exploration of it makes it appear flat. It appears that the Big Bang theory explains how components were created in the first few minutes following the Big Bang.
What does Earth actually go by?Contrary to popular belief, Earth doesn't provide an official international name. The word "Terra" is merely a common misunderstanding of the scientific name for the planet. "Earth" is the commonly used English name for the planet, particularly in scientific contexts.
Is the Earth a star?A planet like the Earth revolves around a star called the sun. A star is typically understood to be a mass of gas that is sufficiently massive and dense to enable nuclear fusion to occur at its core.
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A tv with a power rating of 200 w uses 0. 8 kwh of electrical energy in one day. For how many hours was the tv on during this day?.
The TV was on for 4 hours during the day.
E = 0.8 kWh
P = 200 watts
t = E/P
t = 0.8/0.2
t = 4 hours
The electric energy definition: the capability to carry out work. Electrical power comes from the appeal or repulsion of negatively and positively-charged molecules. Electrical energy is both potential and kinetic power.
Electric energy is a kind of kinetic power due to transferring electric charges . The quantity of power relies upon on the rate of the costs – the quicker they move, the greater electric energy they carry.
Power is an important a part of present day life and crucial to the U.S. economic system. people use energy for lighting fixtures, heating, cooling, and refrigeration and for working home equipment, computer systems, electronics, equipment, and public transportation structures.
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A group of students have decided that the amount of electricity used by the school should be reduced. The students want to develop a plan to solve this problem. What should the group do first?.
The first thing the student group should do is research the amount of electricity the school uses and where it comes from.
The students should then develop a plan to reduce the amount of electricity the school uses. The plan should include measures to reduce the school's reliance on electricity, such as promoting the use of solar power or wind power. The plan should also include measures to increase the efficiency of the school's electricity use, such as retrofitting the school's lighting or installing energy-efficient appliances. The students should then present their plan to the school administration and work with them to implement the plan.
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an astronomer on earth observes two spacecraft moving away from each other along an axis that passes through the earth. the astronomer measured the speed of each spacecraft to be 0.65c relative to earth. at what speed are the spacecrafts moving apart relative to each other
An astronomer on Earth witnesses two spacecraft traveling apart from one another along an axis and passes through the earth at a relative speed of 0.70c.
What does an astronomer do?Astronomers do research on planets, stars, and some other celestial objects. They employ both space-based technology, like the Hubble Space Telescope, and ground-based technology, such optical telescopes. Some astronomers investigate far-off galaxies and phenomena like black holes & neutron stars.
Do astronomers work for NASA?Astronomy, atmospheric science, physics, and astrobiology, the study of space biology, are some of the scientific fields that are most likely to result in employment at NASA. NASA employs 15 different categories of scientists, demonstrating the importance of scientists from all specialities in space research.
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