The minimum force that can be applied to the block to keep it from sliding down the plane is 6.06 N. Any force greater than this value will cause the block to move down the plane.
To find the minimum force required to keep the block from sliding down the inclined plane, we need to calculate the maximum force of static friction that can act on the block, which is equal to the force required to keep the block at rest.
The maximum force of static friction is given by:
[tex]F _{friction}[/tex] = friction coefficient x N
where N is the normal force acting on the block, which is equal to the component of the weight of the block that is perpendicular to the plane. This can be calculated as:
N = m * g * cos(theta)
where m is the mass of the block, g is the acceleration due to gravity, and theta is the angle of the plane with respect to the horizontal.
In this problem, m = 1.00 kg, g = 9.81 m/[tex]s^{2}[/tex], and theta = 39 degrees. We need to convert the angle to radians before we can use it in the equation, which gives:
theta = 39 degrees = 0.68 radians
Substituting these values into the equation for N, we get:
N = m * g * cos(theta) = 1.00 kg * 9.81 m/[tex]s^{2}[/tex] * cos(0.68) = 8.97 N
Now we can use the equation for the maximum force of static friction to find the minimum force required to keep the block at rest:
[tex]F _{friction}[/tex] = friction coefficient x N = 0.675 * 8.97 N = 6.06 N
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what is the advantage of the larger diameter of jwst? choose one or more: a. at a particular wavelength, the resolution for the jwst is 2.7 times better than that for hst. b. the light-gathering ability of the jwst is 7.3 times better than it is for the hst. c. the light-gathering ability of the hst is 2.7 times better than it is for the jwst. d. at a particular wavelength, the resolution for the jwst is 7.3 times better than that for hst. e. the light-gathering ability of the hst is 7.3 times better than it is for the jwst. f. the light-gathering ability of the jwst is 2.7 times better than it is for the hst.
The advantage of the larger diameter of JWST is the light gathering ability of the JWST is 7.3 times better than it is for the HST. Hence, the correct option is (b).
The advantage of the larger diameter of the James Webb Space Telescope (JWST) over the Hubble Space Telescope (HST) is that the light gathering ability of the JWST is 7.3 times better than that of the HST. This is because the diameter of the JWST's primary mirror is 6.5 meters, while the diameter of the HST's primary mirror is only 2.4 meters. The greater the diameter of a telescope's mirror, the more light it can collect and focus, which leads to better image resolution and sensitivity.
Option (a) is incorrect, because a better light-gathering ability does not necessarily translate to a better resolution. The resolution of a telescope depends on a number of factors, including its optics, the size of its detector, and the amount of light that it can gather.
And options (c), (d), (e), and (f) are also incorrect, as the light-gathering ability of the JWST is 7.3 times better than that of the HST, not 2.7 times.
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Uniform Electric Field Two conducting parallel plates are oppositely charged and separated by a certain distance. An electron is located midway between the plates. The magnitude of the electrostatic force on the electron is 3.8 × 10-16 newton. 1. On the diagram, draw at least three field lines to represent the direction of the electric field in the space between the charged plates. 2. Identify the direction of the electrostatic force that the electric field exerts on the electron.
The electrostatic force exerted on the electron will be in the direction of the electric field, which is from the positive plate to the negative plate. Since the electron is negatively charged, it will be attracted to the positively charged plate, so the force on the electron will be in the direction from the negative plate to the positive plate.
What is electrostatic force?The electrostatic force, also known as the Coulomb force, is the force that exists between electrically charged particles. It is a fundamental force of nature that governs the behavior of charged particles, such as electrons and protons.
How is electrostatic force important?The electrostatic force is responsible for many natural phenomena, such as the attraction and repulsion of magnets, the electric shock felt after rubbing a balloon on hair, and the behavior of lightning. It is also used in a wide range of technologies.
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the tortoise and the hare are running a 1 km race. after running comfortably for 7 s, the hare is so far ahead that he decides to take a nap under a tree, 100 m away from the finish line. if the tortoise is moving constantly at a speed of 0.27 m/s, and the maximum speed of the hare is 15 m/s, how long can the hare afford to nap if he does not want to lose the race?(a) 6.67 s(b) 370 s(c) 3630 s(d) 3690 s
Hare can afford to nap if he does not want to lose the race is of 3690 seconds.
A unit rate is a cost for only one of anything. Unit rate is expressed as a ratio with a denominator of 1. For instance, if you covered 70 yards in 10 seconds, you did so at an average speed of 7 yards per second. Although both of the ratios—70 yards in 10 seconds and 7 yards in one second—are rates, only the latter is a unit rate.
D = 1000m
v = 0.27 m/s
t = 1000/0.27
t = 3703.7 sec
Time taken for 100m for hare.
t = 100/15
t = 6.7 sec
Therefore, total time t is
t = 7 + tn + th
3703.7 = 7 + tn + 6.7
tn = 3703.7 - 13.7
tn = 3690 sec
Therefore, hare afford to nap if he does not want to lose the race is 3690 sec.
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who described the universe as a giant clock with unified rules for gravity and motion?
Isaac Newton described the idea that the universe as a giant clock with unified rules for gravity and motion.
The clockwork universe is commonly stated with Sir Isaac Newton but it turns out that both he and his close philosophical supporter Samuel Clarke both strongly criticized the notion of the clockwork universe, because it left no room for Divine Providence.
The faster a clock moves, the slower time passes according to someone in a different frame of reference.
In the history of science, the clockwork universe compares the universe to a mechanical clock. It continues ticking along, as a perfect machine, with its gears governed by the laws of physics, making every aspect of the machine predictable.
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In which state of matter, do the particles have the maximum energy?
A
Solid
B
Liquid
C
Gas
D
None of these
a solid ok thank you
hope it helps
you observe two distant galaxies (well outside our local group of galaxies). you find that galaxy w is moving away from us at a speed of 35,000 km/s and galaxy x is moving away from us at a speed of 70,000 km/s. what can you say about the distances to those galaxies?
the first piece of observational proof that the universe is old. He found that a galaxy appears to be moving away from us faster the further away it is from us, using the greatest telescope available at the time. The universe is therefore evenly expanding in all directions.
What is the two distant galaxies?We frequently observe bigger fluctuations in the color of the light that distant galaxies release when we measure their radiation. This indicates that they are travelling more quickly than the nearby galaxies.
Speeds that are not faster than 0.05% to 1.0% the speed of light. However, you don't need to gaze very far away—100 million light-years is more than enough—to see the consequences of the expanding Universe.
Therefore, Galaxy W is twice as far as Galaxy X.
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which person below developed a system for predicting planetary positions that remained in use for some 1500 years?
Ptolemy. Ptolemy was a Greek astronomer who developed the Ptolemaic system of astronomy.
What is astronomer?Astronomer is an individual who studies the universe and its components such as stars, planets, galaxies, and other celestial bodies. They use observational data, mathematical models, and theoretical principles to understand the physical properties, evolution and origin of the universe. Astronomers often work in teams, and employ a variety of techniques to observe and analyze the data they collect. Astronomers may use ground-based telescopes, spacecraft, or other instruments to observe the universe and the objects within it.
This system used a combination of observational data and mathematical calculations to accurately predict the positions of the planets. This system was used for around 1500 years, until the invention of the telescope in the 17th century.
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what forces work on the mass in the new coordinate system? suppose the mass is a height y in the new coordinates. the total force on it is given: ftot
The forces acting on a mass in a coordinate system include gravitational forces, electromagnetic forces, frictional forces, and tension forces.
The equations you provided are the equations of motion for a particle with mass m moving in a straight line under the influence of a net force Ftot. The equation Ftot = md²r/dt² represents Newton's Second Law of Motion, which states that the net force acting on an object is equal to its mass times its acceleration.
The second equation, r = (d²r/dt²)t², gives the position of the particle as a function of time. It is the second derivative of the position vector r with respect to time t, which corresponds to the acceleration of the particle.
Together, these equations describe the motion of a particle under the influence of a net force and can be used to calculate the position, velocity, and acceleration of the particle as a function of time.
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The question is -
What forces work on the mass in the new coordinate system? suppose the mass is a height y in the new coordinates. the total force on it is given: [tex]F_{tot}[/tex] = md²r/dt²
Edgar kicks the ball to Jerry across the soccer field. The ball stays on the ground. The ball has a mass of 58.40 kg. If the coefficient of friction between the grass and
the ball is 1.52, what is the force of friction?
Type your answer...
The force of friction of the ball is 870.8N.
How to calculate frictional force?Friction is the force that resists motion when the surface of one object comes in contact with the surface of another.
Frictional force is the force generated by two surfaces that contact and slide against each other.
Frictional force can be calculated by multiplying the normal force by coefficient of friction as follows:
f = F × µ
Where;
F = mgf = 58.4kg × 9.81m/s² × 1.52
f = 870.8N
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Do some research and find out the acceleration due to gravity on the Moon and on each planet
listed in the table. For each site, calculate the gravitational force that would act on a 70-kilogram
person on the surface of each site. Use your calculations to complete the table. Remember to
use the same units in each calculation.
Planet or Moon
Venus
Earth
Earth's Moon
Mars
Jupiter
Acceleration due to gravity
Force experienced by 70 kg
person
The acceleration due to gravity varies according to the size of the planet.
What is the list of the acceleration due to gravity on the moon and on all the planets?Here is a list of the acceleration due to gravity (g) on the Moon and on the planets in our Solar System:
Moon:
g = 1.62 m/s^2
Mercury:
g = 3.7 m/s^2
Venus:
g = 8.87 m/s^2
Earth:
g = 9.8 m/s^2
Mars:
g = 3.71 m/s^2
Jupiter:
g = 24.79 m/s^2
Saturn:
g = 10.44 m/s^2
Uranus:
g = 8.87 m/s^2
Neptune:
g = 11.15 m/s^2
It's worth noting that the acceleration due to gravity is affected by the mass and size of a celestial body. Larger and more massive objects have a stronger gravitational pull and therefore a higher acceleration due to gravity.
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a 0.5kg cart is connected horizontally to a spring. there is friction, which damped the amplitude of the motion of the cart with a coefficient of 0.1. if the cart is pulled 2m from the equilibrium position and released. what is the force on the cart by the spring after 2 sec, if the frequency of motion is 1.8hz?
The force on the cart by the spring after 2 sec is -906.4 N.
The motion of the cart connected to a spring can be described by the equation:
x = A × [tex]e^-bt/2m}[/tex] × cos(wt - phi)
where:
x is the displacement, A is the amplitude of the motion b is the damping coefficient m is the mass of the cart w is the angular frequency of the motion phi is the phase angle
To find the force on the cart after 2 seconds, we need to find the values of the amplitude, angular frequency, and phase angle. The amplitude can be found from the initial displacement:
A = 2 m
The angular frequency can be found from the frequency of motion:
w = 2πf = 2π(1.8 Hz) ≈ 11.31 rad/s
The phase angle can be found from the initial conditions. At t = 0, the displacement is 2 m and the velocity is 0, so the phase angle is 0. Therefore: phi = 0
Now we can find the displacement of the cart at t = 2 s:
x = A × [tex]e^-bt/2m}[/tex] × cos(wt - phi)
x = 2 ×[tex]e^{-0.1(2)/2(0.5)}[/tex] × cos(11.31(2) - 0)
x ≈ 1.41 m
The force on the cart by the spring can be found using Hooke's Law, which states that the force is proportional to the displacement:
F = -kx
where k is the spring constant. The spring constant can be found from the angular frequency:
w = √(k/m)
k = m × w²
k = 0.5 kg × (11.31 rad/s)²
k ≈ 642.6 N/m
Therefore, the force on the cart at t = 2 s is:
F = -kx
F = -642.6 N/m × 1.41 m
F ≈ -906.4 N
Note that the negative sign indicates that the force is acting in the opposite direction of the displacement (i.e. restoring force).
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in what direction is the earth's angular velocity for its daily rotation on its axis
The Earth's angular velocity for its daily rotation on its axis is in the counterclockwise direction (eastward).
The Earth's angular velocity for its daily rotation on its axis is in the eastward direction. From above, this movement would look like the Earth is moving counterclockwise. This means that the Earth rotates from west to east, causing the sun to appear to rise in the east and set in the west. This is also why time zones are arranged with earlier times to the east and later times to the west. The Earth's rotation on its axis is what causes the cycle of day and night.
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17) If the pendulum string has a length of 7 meters, what is the period?
a.
4.4 seconds
c. 6.28 seconds
b. 5.26 seconds
d. 0.84 seconds
The period of a pendulum is found to be 5.26 seconds if the pendulum string has a length of 7 meters.
What is a Pendulum?A pendulum may be characterized as a body suspended from a fixed point so that it can swing back and forth under the influence of gravity. The time interval of a pendulum's complete back-and-forth movement is constant.
According to the question,
The length of a pendulum string = 7 m.
The period of a pendulum string = ?
The length of a pendulum string is found with the help of the following formula:
L = (T/ 2π)² × g7 = (T/2 × 3.14)² × 9.8
7 = [tex]\frac{T^2}{4}[/tex] × 9.85 × 9.8.
28 = [tex]T^2[/tex] × 96.53 = 0.526 = 5.26 seconds.
Therefore, the period of a pendulum is found to be 5.26 seconds if the pendulum string has a length of 7 meters.
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it takes 10 million (1x107) hudfs to fill the entire sky. using this information and your answer from the previous part, how many stars are there in the observable universe? express your answer using scientific notation.
The estimated number of stars in the observable universe is about 1x10^22.
Scientific Notation10 million can be written as 1,000,000,000 . It is expressed in scientific notation, it becomes 10 raised to 9= 1,000,000,000
What is an Universe?The universe is made up of all of space, time, and everything that exists within them, including all of the planets, stars, galaxies, and other types of matter and energy. The prevailing cosmological explanation for the universe's formation is the Big Bang theory. The universe has been expanding ever since the Big Bang, which occurred 13.7870.020 billion years ago, according to this theory. Although the size of the entire universe's space is unknown, the observable universe's diameter, which is about 93 billion light-years at the moment, can be calculated.
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The estimated number of stars in the observable universe is about 1x10^22.
Scientific Notation
10 million can be written as 1,000,000,000 . It is expressed in scientific notation, it becomes 10 raised to 9= 1,000,000,000
What is an Universe?
The universe is made up of all of space, time, and everything that exists within them, including all of the planets, stars, galaxies, and other types of matter and energy. The prevailing cosmological explanation for the universe's formation is the Big Bang theory. The universe has been expanding ever since the Big Bang, which occurred 13.7870.020 billion years ago, according to this theory. Although the size of the entire universe's space is unknown, the observable universe's diameter, which is about 93 billion light-years at the moment, can be calculated.
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monochromatic light is beamed into a michelson interferometer. the movable mirror is displaced 0.459 mm, causing the central spot in the interferometer pattern to change from bright to dark and back to bright 1821 times. determine the wavelength of the light.
The wavelength of the light can be calculated using the formula λ = 2d/N, where d is the mirror displacement and N is the number of fringes observed. Substituting the given values, the wavelength of the light is found to be approximately 635.2 nm.
A tool used to gauge light's wavelength is a Michelson interferometer. A beam splitter is used to divide a light beam into two pathways, which are then combined again to form an interference pattern. One of the beams' travel lengths is altered by the moveable mirror, which results in interference fringes moving. It is possible to determine the wavelength of the light by counting the number of fringes that shift, which is directly proportional to the change in path length. In this instance, the movable mirror's displacement and the quantity of fringe shifts are known, allowing us to use the formula: = 2d/N, where d is the mirror's displacement and N is the quantity of fringe shifts, to determine the wavelength of the light.
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if all of the dimensions of the block double (to become 20 cm wide, 8 cm tall, and 6 cm deep), what happens to the resistance along each axis?
The resistance of the block to motion along each axis will also increase by a factor of 8.
The resistance of a block to motion in a particular direction is determined by its mass and the coefficient of friction between the block and the surface.
Assuming that the surface and the coefficient of friction remain the same, and the block's density is also constant, the mass of the block will increase by a factor of
[tex]2^3 = 8[/tex] when all of its dimensions double.
Therefore, the resistance of the block to motion along each axis will also increase by a factor of 8. This is because the force required to move the block along each axis is proportional to the mass of the block, and the mass is directly proportional to the volume of the block, which in turn is proportional to the product of its three dimensions.
In other words, if the original block had a certain resistance to motion along each axis, the new, larger block will require eight times the force to be moved along each axis, as its mass will be eight times greater.
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A wooden ball with a mass of 0.45 kg is at rest when it is tapped by a wooden mallet that applies an average force of 83 N to the ball. After contact with the mallet, the ball moves forward at 1.3 m/s. How long was the mallet in contact with the ball?7.0 milliseconds3.7 milliseconds2.4 milliseconds.59 milliseconds
The mallet in contact with the ball is 2.4 milliseconds.
The amount of time that the mallet was in contact with the ball can be calculated using the equation for impulse, which is equal to the change in momentum. Force and time combine to create an impulse.. Mathematically, it can be expressed as:
Impulse = Change in Momentum = F * t
Change in momentum is the product of mass and change in velocity.Therefore, the time that the mallet was in contact with the ball can be calculated as follows:
[tex]t = \frac{Impulse }{F }\\ \\= \frac{(0.45 kg * 1.3 m/s) }{ 83 N }\\\\= 2.4 milliseconds[/tex]
Therefore,The mallet in contact with the ball is 2.4 milliseconds.
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how long will it take the goose to cover a ground distance of 550 km from north to south? (note: even on cloudy nights, many birds can navigate using the earth's magnetic field to fix the north-south direction.)
The goose will take 8.55 hours to travel 550 km at their average speed of 64.3km/h.
The goose average speed is around 40 mph or 64.3 km/h, but in good weather and wind conditions this speed can go up to 70 mph or 112 km/h
Considering the formula:
x = v.t
were x=space, v=speed and t= time. Clearing the equation, to find the hours of flight:
t = x/v = 550km / 64.3km/h = 8.55 hours
Average speed is a useful concept in many fields, including physics, engineering, and transportation. It can be used to calculate travel times, estimate fuel consumption, and analyze the performance of machines and vehicles. However, it is important to note that average speed does not take into account changes in direction or acceleration, which can affect the overall performance of an object.
Average speed is a measure of how quickly an object moves over a certain distance. It is defined as the total distance traveled divided by the time it takes to travel that distance. The units of average speed are usually expressed as distance per unit time, such as kilometers per hour, miles per hour, or meters per second.
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in which scenario is the change in momentum greatest? coming to a stop by landing on the trampoline. coming to a stop by landing on the ground. the change in momentum is the same for both scenarios.
The change in momentum is greatest when coming to a stop by landing on the ground.
This is because when a person comes to a stop on the ground, the time of impact is shorter than when they come to a stop on a trampoline. Since the force is the rate of change of momentum, a shorter time of impact results in a greater force acting on the body, which leads to a larger change in momentum.
In contrast, when a person lands on a trampoline, the surface is more yielding and will absorb some of the force of impact over a longer time, resulting in a smaller force acting on the body and a smaller change in momentum.
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An ecologist recorded 12 white-tailed deer, Odocoileus virginianus, per square kilometer in one woodlot and 20 per square kilometer in another woodlot. What was the ecologist comparing?
A) Density
B) Range
C) Cohorts
D) Dispersion
E) Carrying capacity
The ecologist was comparing the density of white-tailed deer, Odocoileus virginianus, between two woodlots.
What is Density?A population's density is calculated as the number of people in a given area or volume. It is a key parameter for comprehending the dynamics of populations and one of the most fundamental ideas in population ecology.
The number of people per unit area, such as per square meter or per square kilometer, is a common way to represent population density in the context of ecology. As an illustration, it is possible to compute the density of a certain species in a particular habitat by counting the number of individuals inside a given area and dividing that number by the area.
The dynamics of the population are significantly influenced by density. Increased resource competition brought on by a high population density may have an impact on population growth, survival, and reproduction. A low population density, on the other hand, may lead to less competition for resources and more food availability, which may encourage human growth and reproduction.
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an airplane flies from joint base lewis mcchord (jblm) to a undisclosed location 80 km south and 200 km east. in what direction should the plane fly?
Greetings from Joint Base Lewis-McChord, the base where I Corps and the 62 Airlift Wing are based. The flagship military facility on the West Coast for the Department of Defence is Joint Base Lewis-McChord, which is situated in the Puget Sound area of the Pacific Northwest.
What is the joint base lewis mcchord (jblm)?JBLM, the sole Army Power Projection Platform west of the Rocky Mountains, has since expanded to become the largest Army-led joint post in the United States.
Because of the 100 km/h speed, the net spirit of the plane will be in this activity. In order to determine the plane's motion with respect to the north, we first locate the theatre.
The calculation would be 100 km/h divided by 300 km/h. According to the formula, three would win 10 thetas.
Therefore, The plane's motion's angle determines whether it is respectable.
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a car starts from rest and accelerates at 0.300 m/s2 . what is the speed of the car after it has travelled 25.0 m?
The speed of the car after it has traveled 25.0 m is 3.87 m/s. when the car starts from rest and accelerates at 0.300 m/s2.
At rest, is acceleration zero?A vector quantity is acceleration. We must provide retar-dation—a negative acceleration—to the body in order for it to come to rest. The body's velocity is zero when it comes to a stop. The outcome is that the acceleration is also zero.
Is acceleration zero when at rest?Acceleration is a vector quantity. The body needs to experience retar-dation—a negative acceleration—in order to come to rest. When a body comes to a stop, its velocity is zero. As a result, the acceleration is zero as well.
v^2 = u^2 + 2as
v = final velocity
u = initial velocity = zero [start from rest]
a = acceleration = 0.300 m/s2
s = distance = 25.0 m
v^2 = 0 + 2 [0.300] [25.0]
v^2 = 15
v^2 = 3.87 m/s
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Revisiting the Anticipation Guide Review your original response to this statement from the Anticipation Guide on page 6: Each person in a family has the same traits. There are no differences in traits between parents and offspring or among siblings. Do you agree or disagree with this statement now? What evidence supports your ideas about the statement?
A ball of mass 0.5 kg is thrown with kinetic energy of 100 J vertically upward. If air resistance is neglected, find maximum height reached by the ball. (g = 10 m/s²)
Answer:
20 meters
Explanation:
The initial velocity of the ball can be determined using the equation for kinetic energy:
K = (1/2)mv^2
100 J = (1/2) * 0.5 kg * v^2
So, v^2 = 200 J / 0.5 kg = 400 m^2/s^2
The velocity can be determined from the square root:
v = sqrt(400 m^2/s^2) = 20 m/s
Now we can use the velocity to determine the maximum height. The maximum height is reached when the velocity is zero, so we can use the formula for vertical motion under constant acceleration to find the time when this occurs:
v = v0 - gt
0 = 20 m/s - 10 m/s^2 * t
t = 2 s
We can use this time to find the maximum height:
h = v0 * t - (1/2)gt^2
h = 20 m/s * 2 s - (1/2) * 10 m/s^2 * 2 s^2
h = 40 m - 20 m
h = 20 m
So, the maximum height reached by the ball is 20 meters.
What is the mass defect of lithium? Assume the following: Atomic number of lithium = 3 Atomic mass of lithium = 7. 0144 atomic mass units. Mass of 1 proton = 1. 0073 atomic mass units. Mass of 1 neutron = 1. 0087 atomic mass units.
(A)0. 0043 atomic mass units
(B)0. 0423 atomic mass units
(C)3. 0219 atomic mass units
(D)4. 0348 atomic mass units
(E)7. 0567 atomic mass units
The mass of an atom is less than the sum of the masses of its component protons, neutrons and electrons. The mass defect is 0.0423 amu. The correct option is B.
What is mass defect?The mass defect is equal to the mass lost as an equivalent amount of energy during the formation of a given nucleus from the component nucleons.
Δm = M°- M
Δm = Mass defect
M° = Expected total mass
M = Experimentally determined mass
Here 'Li' has 3 protons and 4 neutrons.
The mass of proton = 3 × 1.0073 = 3.0219 amu
The mass of neutron = 4 × 1.0087 = 4.0348 amu
The sum of masses of protons and neutrons = 7.0567
Mass defect = 7.0567 - 7.0144 = 0.0423 amu
Thus the correct option is B.
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he fact that the elements of life were produced in stars suggests the following two things: a. (1) these elements have become more common as the universe has grown older. (2) these elements are the most common elements in the universe. b. (1) the universe began in a big bang. (2) the elements of life exist in all stars. c. (1) these elements only exist in very old stars. (2) these elements are extremely rare. d. (1) these elements have become more common as the universe has grown older. (2) these elements should be found in nearly all star systems.
The correct answer is (d): (1) these elements have become more common as the universe has grown older. (2) these elements should be found in nearly all star systems.
The elements that make up life (such as carbon, nitrogen, oxygen, and iron) are created in stars through nuclear fusion and supernova explosions. As the universe has grown older, more and more stars have been born and died, producing these elements and spreading them throughout the universe. Therefore, these elements have become more common over time.
Additionally, because these elements are created in stars, they should be found in nearly all star systems. While the exact abundance of these elements may vary depending on the age and type of star, they should be present in some amount in most stars.
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Based on astronomy from space-based telescopes, select all of the correct statements from the following list.a. Most types of electromagnetic waves are not visible to ground-based telescopes.b. There would be no limit to what an optical telescope in space could see.c. Enough infrared energy gets to Earth's surface that infrared telescopes do not need to be put in orbit.d. The Chandra and Spitzer telescopes are all in space.
Statements which are correct are (a) i.e. Telescopes on the ground cannot see the majority of electromagnetic waves. & (d) The Chandra and Spitzer telescopes are all in space.
(a) Most types of electromagnetic waves, such as X-rays and gamma rays, are not visible to ground-based telescopes due to the absorption of these waves by the Earth's atmosphere. Therefore, to detect these types of electromagnetic waves, space-based telescopes are needed.
(d) This statement is correct. The Chandra X-ray Observatory and the Spitzer Space Telescope are both space-based telescopes designed to observe X-rays and infrared radiation, respectively. Since X-rays and infrared radiation are not visible to ground-based telescopes due to the Earth's atmosphere, space-based telescopes are necessary to detect them.
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How did katherine johnson respond when it seemed that certain meetings at nasa were only for men?
Katherine Johnson accepted that the meetings were only for men and didn't ask to attend.
What is meeting?Meetings are when two or more people get together to talk about one or more topics, frequently in a formal or business setting, though they can also happen in a variety of other settings. Group decision-making can be done during meetings.
A meeting is a gathering of two or more individuals called for the express purpose of engaging in verbal interaction in order to accomplish a common objective, such as exchanging information or coming to a consensus. Face-to-face meetings can take place virtually through the use of communications technology, such as a telephone conference call, a skped conference call, or a videoconference.
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how to calculate the maximum height of a projectile given its original position and initial velocity only up and down
The maximum height of a projectile given its original position and initial velocity is, h = (v^2)/(2g).
Maximum height of a projectile given its original position and initial velocity in the vertical direction,
h = (v^2*sin^2(theta))/(2g)
where v is the initial velocity in the vertical direction, theta is the angle of the initial velocity and g is the acceleration due to gravity.
If the projectile is launched straight up, then theta = 90 degrees,
h = (v^2)/(2g)
To use this formula, you need to know the value of v, the initial velocity of the projectile in the vertical direction. This can be found by analyzing the initial conditions of the problem or by measuring the initial velocity directly.
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how does an electromagnetic wave propagates?
