The angle of climb is 3.2° and incremental thrust is 500 * W - (21.6) * T.
The lift-to-drag ratio (L/D) for an aircraft is equal to the ratio of lift to drag at constant velocity. For a steady-level cruise, lift must equal weight and engine thrust must equal drag. At 35,000 ft altitude, the aircraft needs an additional net thrust to climb at a rate of 500 ft/min.
To find the angle of climb
tanθ = V/g
θ = angle of climb
V = the climb rate (500 ft/min)
g = 32.2 ft/s2
tanθ = (500 ft/min)/(32.2 ft/s2)
θ = 3.2°
The lift force, L, must equal the weight of the aircraft, W. The drag force, D, must equal the thrust force, T.
L = W
D = T
The lift-to-drag ratio, L/D, is given as 21.6.
L/D = 21.6
The rate of climb is 500 ft/min.
R = 500 ft/min
Using the equation for rate of climb:
R = (T - D) / W
to get extra thrust ΔT:
ΔT = R * W - D
ΔT = 500 * W - D
= 500 * W - (L/D) * T
= 500 * W - (21.6) * T
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Telescope A has a 7 in. diameter whereas Telescope B has a 4 cm diameter. By how much does Telescope A gather more light?
bright telescope/dim telescope
By diameters of 7 and 4 cm, telescope A gathers 3.0625 more light than telescope B.
What is telescope?Astronomers use telescopes to see objects that are far away. Most telescopes, particularly large telescopes, use curved mirrors to capture and focus light from the night sky. A telescope is a device that magnifies distant objects. Without a question, the telescope is the most important scientific instrument in astronomy. It enables the collecting and study of radiation emitted by celestial objects, even those in the furthest regions of the cosmos. Hawaii is home to the Keck Observatory. A telescope is a gadget that is used to see faraway objects. If you like, you may look at the planets using a telescope. The sharper the image, the greater the magnification on the telescope.
Here,
=(7/4)²
=49/16
=3.0625
The telescope A gather more light by 3.0625 than telescope B by diameter of 7 and 4 cm.
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you are holding an ice cube in your left hand> you touch it and find that it is hard and slick and cold
You are holding an ice cube in your left hand you touch it and find that it is hard and slick and cold due to temperature differences, heat started to flow from our body to ice.
Ice cube in your left hand feels cool because ice exist zero or even below zero degrees Celcius. but our body temperature is 37degree. Due to temperature differences, heat started to flow from our body to ice. Hence Ice feels colder on touching.
If two objects have different temperatures, heat will flow from the warmer object to the colder one depending on there temperature. For instance, when you hold an ice cube, heat is transferred from your warm hand to the cold ice and melts it. Your hand feels cold because it is losing heat energy.
This process occur due to thermal energy .Thermal energy refers to the energy contained within a system or energy stored inside the system that is responsible for its temperature. Heat is the flow of thermal energy .In other words thermal energy is the flow of heat.
Our body is at a temperature of 37C and our finger tips are at slightly lower temperature, but they are still much above the temperature of the ice cube at 0C.So, when we touch the ice cube, we transfer heat to the ice cube of our body and the loss of heat results in a lowering of temperature and that is sensed as cold.
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Indicate the level of measurement for the data set described. Average temperature (in degrees Fahrenheit) of the water in the Gulf of Mexico for each month of the past year
Average temperature (in degrees Fahrenheit) of the water in the Gulf of Mexico for each month of the past year. This is interval scale.
Types of measurementsIn the quantification process, data and variables can be classified into four types of measurement scales namely:
Nominal ScaleNominal is the simplest measurement scale. The data is defined on the basis of the classification process, the data is distinguishable. The numbers used are only as categories and have no meaning and cannot be used for mathematical calculations.
Ordinal ScaleData arranged on the basis of levels in certain attributes. This scale is based on ranking. This ordinal measurement scale is used in determining the ranking of a particular group. In this ranking only the order of objects is considered from the largest to the smallest or from the highest to the lowest.
Interval ScaleThis scale shows the distance between one data and another data and has the same weight. In an interval scale, the relationship between the order and the distance between the numbers has meaning.
Ratio ScaleThe ratio scale is almost the same as the interval scale, the difference is that the ratio measurement scale has an absolute zero value and the same distance, while the interval does not.
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.In finding analytic solution of forced d.e's the IC's must always be evaluated after the expressions for the transient and steady state have been combined -True or False?
2. The frequency at which at which sinusoidal forcing function causes the steady-state amplitude oscillations of a mass-spring-damper system to be maximum is the natural frequency. (True or False)
1. In finding analytic solution of forced d.e's the IC's must always be evaluated after the expressions for the transient and steady state have been combined. (True)
2. The frequency at which at which sinusoidal forcing function causes the steady-state amplitude oscillations of a mass-spring-damper system to be maximum is the natural frequency. (False)
ABOUT SINUSOIDALSine waves or sinusoidal are mathematical functions which are in the form of smooth, repetitive oscillations. This function often appears in the sciences mathematics, physics, signal processing, and electrical engineering, and various other fields.
Sine waves are very important in physics because they retain their shape when added to another sine wave of the same frequency even though the phase is different. This wave is the only periodic function that has this property. This property makes these waves an important part of Fourier Analysis.
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In science, a concept that is supported by a broad range of observations, experiments, and data is called a scientific
A scientific theory is a term used in science to describe a concept that has been widely supported by various observations, experiments, and data.
A scientific theory is a well-substantiated explanation of some aspect of the natural world that is based on a body of facts that have been repeatedly confirmed through observation and experimentation.
Theories explain why things happen and make predictions about future observations. They are considered to be well-established and widely accepted within the scientific community, and have been thoroughly tested and supported by evidence. Examples of scientific theories include the theory of evolution, the theory of gravity, and the theory of relativity.
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Open the KET-VPL LensesMirrors experiment. 2. Drag a converging lens to the optical bench. 3. Click and drag the ruler to measure the focal length of the lens. 15 cm 4. Locate an object inside F and use the ruler to measure the object and image distances. 25.3 cm 5. Relocate the object between F and 2 F and use the ruler to measure the object and image distances. 30 cm 6. Relocate the object outside 2 F and use the ruler to measure the object and image distances. 30 cm Analysis: 1. Use the data obtained in steps 4−6 to compute three experimental values of the lens's focal length. 2. Compare the experimental focal lengths to the measured focal length found in step 3.
1. To compute three experimental values of the lens's focal length, the following formula can be used:
f = (1/u) + (1/v)
where f is the focal length, u is the object distance, and v is the image distance.
2. To compare the experimental focal lengths to the measured focal length found in step 3, the calculated values can be compared with the measured value of 15 cm.
Note: The focal length of a lens can be calculated using the lens formula, which relates the object distance (u), the image distance (v), and the focal length (f) of a lens.
part a - write this large number in scientific notation. determine the values of m and n when the following mass of the earth is written in scientific notation: 5,970,000,000,000,000,000,000,000 kg .
Enter \(m\) and \(n\). separated by commas
The mass of the Earth written in scientific notation is 5.97 × 10²⁴ kg and \(m, n\) = \(5.97, 24\).
What is scientific notation?Scientific notation is a way of expressing very small or very large numbers in a simpler form.
In scientific notation, the number is written as
c
Where
1 ≤ m < 10n is an integerWrite this large number in scientific notation!
Mass of the Earth = 5,970,000,000,000,000,000,000,000 kg
Determine the \(m\) and \(n\), separated by commas!
We count the number of 0 in the value above. It is 22.
In scientific notation, the mass of the Earth is
= 5,970,000,000,000,000,000,000,000 kg
= 597 × 10²² kg
= 5.97 × 10²⁴ kg
m × 10ⁿ = 5.97 × 10²⁴ kg
The value of
m = 5.97n = 24\(m, n\) = \(5.97, 24\)
Hence, the scientific notation of the mass of the Earth is 5.97 × 10²⁴ kg with \(m, n\) = \(5.97, 24\).
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The arm of a crane at a construction site is 16.0 m long and it makes an angle of 11.3 with the horizontal assume that the maximum load the crane can handle is limited by the amount of torque the load produces around the base of the arm what maximum torque in the Crane withstand is the maximum load the crank handle is 468 N
Answer:
76.5
Explanation:
To find the maximum torque the crane can withstand, we can use the formula: torque = force x distance x sin(angle).
Given that the arm of the crane is 16.0 m long and makes an angle of 11.3 degrees with the horizontal, we can substitute these values into the formula:
torque = force x distance x sin(angle)
Since the maximum load the crane can handle is 468 N, we can substitute that value for force:
torque = 468 N x 16.0 m x sin(11.3 degrees)
The unit of torque is Newton-meters (N*m). To get the torque, you need to convert the angle to radians by multiplying the degree by pi/180.
torque = 468 N x 16.0 m x sin(11.3 x pi/180)
You will get the maximum torque the crane can withstand is about 76.5 N*m.
An object weighs 6kg in air. What will be its apparent weight in water, give reason.
Explanation:
Wapp=w+ma
Wapp=mg+ma
Wapp=6*10+6*10
Wapp=60+60
Wapp=120N
A certain type of rocket sled is used to measure the effect of sudden
acceleration. The sled at rest has a speed of 0.0 km/h, and then reaches a
top speed of 320km/h in 0.18 seconds. What is the acceleration that takes
place in this time?
HURRY PLEASEE
Answer:
To find the acceleration that takes place in 0.18 seconds, we can use the formula:
acceleration = (change in velocity) / (change in time)
In this case, the change in velocity is 320km/h (the final speed) - 0.0 km/h (the initial speed) = 320km/h
And the change in time is 0.18 seconds.
So the acceleration is:
acceleration = (320 km/h) / (0.18 seconds) = 1777.78 km/h^2 or 1777.78 m/s^2
The acceleration is equal to 1777.78 m/s^2.
when sand grains become supersaturated with pressurized water, the water can push the grains apart, leaving them with no strength. when this water-pressurized sand forms on a flat surface or in a depression, it becomes . (enter only one word per blank.)
The correct answer is quicksand or liquefied.
Quicksand is a type of soil that can trap and sink objects placed on its surface due to the high viscosity of the sand caused by the presence of water.
When weight is placed on quicksand, it causes the solid particles to separate and the water to rise to the surface, making it difficult to extract the object or support weight. It is often found near riverbanks, estuaries, and other water sources.
When pressure is applied to quicksand, such as a person or object stepping on it, the sand loses its strength and cannot support weight. This can result in the person or object becoming trapped and sinking into the quicksand.
It is important to exercise caution when near quicksand, as it can be difficult to extract yourself or others once trapped. The best way to avoid quicksand is to stay on solid ground and avoid low-lying, marshy areas near water sources.
If you do become trapped in quicksand, it is recommended to remain calm and try to slowly spread your weight over a larger area to gradually extract yourself.
Therefore, The correct answer is quicksand or liquefied.
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A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.00m/s at an angle of 20.0 0 below the horizontal. It strikes the ground 3.00s later. (a) How far horizontally from the base of the building does the ball strike the ground? (b) Find the height from which the ball was thrown. (c) How long does it take the ball to reach a point 10.0m below the level of launching?
(a) 14.94 m horizontally from the base of the building the ball strikes the ground.
(b) The height from which the ball was thrown =15.44 m
(c) It takes 1.86 seconds for the ball to reach a point 10.0m below the level of launching
(a) The horizontal distance from the building can be found using the equation:
x = vi * t
where
vi = initial horizontal velocity = 8.00 m/s * cos(20.0°)
t = time = 3.00 s
x = vi * t = 8.00 * cos(20.0°) * 3.00 = 14.94 m
(b) The height from which the ball was thrown can be found using the equations:
y = vi * t - 0.5 * g * t^2
where
vi = initial vertical velocity = 8.00 m/s * sin(20.0°)
g = acceleration due to gravity = 9.8 m/s^2
t = time = 3.00 s
y = vi * t - 0.5 * g * t^2 = 8.00 * sin(20.0°) * 3.00 - 0.5 * 9.8 * 3.00^2
= 15.44 m
(c) To find the time it takes for the ball to reach a point 10.0 m below the launch point, we can use the equation:
y = vi * t - 0.5 * g * t^2
Rearranging and solving for t, we have:
[tex]t = \sqrt{(2 * (y - vi * t) / g)[/tex]
where
y = -10.0 m (below the launch point)
vi = initial vertical velocity = 8.00 m/s * sin(20.0°)
g = acceleration due to gravity = 9.8 m/s^2
[tex]t = \sqrt{(2 * (-10.0 - 8.00 * sin(20.0°) * t) / 9.8)}[/tex]
Numerically solving,
t = 1.86 s
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Write a function: class Solution { public int solution(int N); } that, given an integer N, returns the smallest integer greater than N, the sum of whose digits is twice as big as the sum of digits of N. Examples: 1. Given N = 14, the function should return 19. The sum of digits of 19 (1 +9 = 10) is twice as big as sum of digits of 14 (1 + 4 = 5). 2. Given N = 10, the function should return 11. 3. Given N = 99, the function should return 9999. Assume that: • N is an integer within the range (1..500]. In your solution, focus on correctness. The performance of your solution will not be the focus of the assessment.
Here is one way to implement the solution in Java:
class Solution {
public int solution(int N) {
int sumOfDigitsN = getSumOfDigits(N);
for (int i = N + 1; ; i++) {
if (getSumOfDigits(i) == 2 * sumOfDigitsN) {
return i;
}
}
}
private int getSumOfDigits(int n) {
int sum = 0;
while (n > 0) {
sum += n % 10;
n /= 10;
}
return sum;
}
}
What is Java?Java is a high-level programming language developed by Sun Microsystems (now owned by Oracle Corporation) in the mid-1990s. It is class-based, object-oriented, and designed to have as few implementation dependencies as possible, meaning that code written in Java can run on any device with a Java Virtual Machine (JVM) installed, regardless of the underlying architecture.
Java is widely used for developing applications for desktop computers, mobile devices, web servers, and enterprise applications. It is also a popular language for creating Android mobile apps. Java's popularity stems from its simplicity, portability, security, and scalability
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A car starts from rest at a stop sign. It accelerates at 2.0 m/s2 for 6.9 s, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s2 for the next stop sign. How far apart are the stop signs?
The distance between the stop signs is 138.7 m. The car moves with acceleration and constantly.
How to count the total distance of a moving object?A car starts from rest at a stop sign. It accelerates at 2.0 m/s² for 6.9 s, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s² for the next stop sign.
Determine the distance between the stop signs!
In this case, there are three conditions. The car is accelerated, moving constantly, and decelerated.
When the car is accelerated from rest, the distance is
x₁ = v₀t + ½ at²
x₁ = 0 + ½ (2.0)(6.9)²
x₁ = 1.0(47.61)
x₁ = 47.6 m
At t = 6.9 seconds, it reach the velocity of
v₁ = v₀ + at
v₁ = 0 + (2.0)(6.9)
v₁ = 13.8 m/s
When the car is moving constantly at 13.8 m/s, the distance is
x₂ = vt
x₂ = 13.8(2.0)
x₂ = 27.6 m
When the car is decelerated to a stop, the distance is
v₁² = v₀² - 2ax₃
0 = 13.8² - 2(1.5)x₃
190.44 = 3x₃
x₃ = 190.44/3
x₃ = 63.5 m
The total distance traveled will be
= x₁ + x₂ + x₃
= 47.6 + 27.6 + 63.5
= 138.7 m
Hence, the stop signs has a distance of 138.7 m.
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a rock climber stands on a 50 m high cliff that juts into a pool of water. he threw two stones vertically downward 1.0 s apart and observed that they caused a single splash. the initial velocity of the first stone is 2.4 m/s. what is the acceleration of a?
The acceleration is g (the acceleration of gravity--- 9.8 m/s2 )
The initial velocity of the first stone is 2.4 m/s. what is the acceleration of a?
For the first stone:
The distance travelled is the initial velocity times time + distance for an acceleration from 0.
In this case, the acceleration is g (the acceleration of gravity--- 9.8 m/s2 )
So
d = vi * t + 1/2 * g * t2
Plug in the numbers:
50 = 2*t + 9.8/2 * t2
Put in standard format:
4.9t2 + 2t - 50 = 0
not obviously factorable, so use the quadratic formula:
t = (-2 ± √( 22 - 4*4.9*(-50)) ) / 2(4.9)
t = (-2 ± √984 ) / 9.8
t = (-2 ± 31.4) / 9.8
A negative value has no meaning so t = 29.4/9.8 = 3 (This is the (a) answer)
This is the time after the 1st throw that BOTH stones hit the water, so the time for the second stone is 2 seconds.
Use the same equations to get the initial velocity of the 2nd stone. (This time, you'll be entering d and t and solving for vi )
For the velocity hitting the water, use v = vi + g*t = vi + 9.8t
plug in vi and t, and solve
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Vector A has a magnitude of 74 units and points west, while vector B has the same magnitude and points due south. Find the magnitude and direction of a) A + B and b) A - B. Specify the directions relative due west.
Answer:here is your answer
Explanation:
a) The magnitude and direction of the sum of two vectors can be found by using the Pythagorean theorem and the concept of angles. If we consider A and B to be the components of the sum vector, then the sum vector can be represented as follows:
A + B = (74 units, West) + (74 units, South) = √(74^2 + 74^2) units, arctan(74/74) = 106 units, arctan(1) = 45° South of West
So, the magnitude of A + B is 106 units and the direction is 45° South of West.
b) The magnitude and direction of the difference of two vectors can be found similarly. If we consider A and B to be the components of the difference vector, then the difference vector can be represented as follows:
A - B = (74 units, West) - (74 units, South) = √(74^2 + 74^2) units, arctan(-74/74) = 106 units, arctan(-1) = 45° North of West
So, the magnitude of A - B is 106 units and the direction is 45° North of West.
Where do you plan
to use text in your
political cartoon? Check all that apply.
in the title
in a thought or speech balloon
on a figure or object
in a short statement banner
On a figure or object and in a short statement banner you can plan to use text in your political cartoon.
What exactly are political cartoons used for?
A drawing that offers a humorous or unfavorable opinion about particular political persons or occasions. The objective is to influence the audience to take a particular stance on a historical event. A political cartoon expresses the views of its artist. It has an effect on the brain of spectators. But more often than not, they are attempting to persuade you than to amuse you. An effective political cartoon tries to convince you to agree with the cartoonist's point of view while also provoking discussion about current events by making their image in your brain.
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Steam at 100°C enters a radiator and leaves as water at 70°C. The mass of the
steam is 5.5 kg. Take the heat of vaporization to be 2.3x106 J/kg. How much
energy was released? Remember that Cwater = 4180 J/kg.K.
Answer:
below
Explanation:
to condense to water at 100 degrees C the steam gives off
5.5 kg * 2.3 x 10^6 j /kg of heat....then the water cools to 70 degrees C
Going from 100 to 70 C Gives off
(100 - 70) degree C * 4182 J kg /degree C * 5.5 kg
Total heat given off = 13 340 030 J
Answer:
Explanation:
Energy released= m*c*T(water)+m*L(Steam)
energy released= 5.5*(4180*30+2300000)
energy released=13339700J
For the following circuit, find the energy stored in capacitor C4 for a supplied voltage of 2.7 Volts. The answer is in Micro Joules
C1=10 Micro Farad C2=5 Micro Farad
C3= 20 Micro Farad
C4= 10 Micro Farad
C1
C2
C3
11
24V
C4
The energy stored in the capacitor C4 is 36.5 μJ.
What is the energy stored in the circuit C4?
The energy stored in the circuit C4 is calculated by applying the following formula as shown below.
U = ¹/₂C₄V²
where;
C₄ is the capacitance of capacitor 4V is the voltage supplied in the circuitThe energy stored in the capacitor C4 is calculated as follows;
U = ¹/₂ (10 x 10⁻⁶) (2.7)²
U = 3.65 x 10⁻⁵ J
U = 36.5 x 10⁻⁶ J
U = 36.5 μJ
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A new planet is discovered orbiting the Sun, and scientists have determined that the semi-major axis of its orbit is 10.5 AU. How many Earth years will it take for this
planet to orbit the Sun once?
Answer:
30.2 Earth years for the new planet to orbit the Sun once.
Explanation:
An AU (astronomical unit) is the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers. So a semi-major axis of 10.5 AU is roughly equivalent to 987.5 million miles or 1.58 billion kilometers.
The time it takes for a planet to orbit the Sun is called its orbital period. The formula for calculating the orbital period of a world is:
T = 2π * √(a^3 / G(M_s)), where T is the orbital period, a is the semi-major axis, G is the gravitational constant, and M_s is the mass of the Sun.
Since the mass of the Sun is known, we can use the formula to calculate the orbital period of the new planet:
T = 2π * √(10.5^3 / (4π^2)) ≈ 30.2 Earth years
So, it will take approximately 30.2 Earth years for the new planet to orbit the Sun once.
fred (mass 60 kg ) is running with the football at a speed of 5.9 m/s when he is met head-on by brutus (mass 130 kg ), who is moving at 4.3 m/s . brutus grabs fred in a tight grip, and they fall to the ground.
They slide up to 0.0756 meters to the opposite direction.
What is Velocity ?
Velocity is a vector quantity that describes the rate of change of an object's position. It is equal to the displacement of an object divided by the time interval over which the displacement occurred. Velocity has both magnitude and direction, and its units are typically meters per second (m/s).
The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal velocity.
Conservation of momentum:
60x6 -120x4 =180.v
v = 120/180 = 2/3 m/s
After falling,
Kinetic energy = work done against friction
K= 0.5x180x(2/3)2 = 40 J
Work done against friction,
W = f.S = μ.(M +m)g.S = 0.3 x 180x9.8 x S
= 529.2 x S
Equating W = K and solving,
S = 40/529 = 0.0756 m= 7.56 cm
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Which of the following lists is written in order of decreasing particle size?
a. sandstone, siltstone, conglomerate
b. sandstone, conglomerate, siltstone
c. conglomerate, sandstone, siltstone
d. siltstone, sandstone, conglomerate
The correct decreasing order of the particle size is given below:
Conglomerate, Sandstone, Siltstone.
Conglomerates are those rocks, which have a particle size varying from the size of a pebble (2 mm) to the size of a boulder (256 mm).
Sandstones are those rocks, which have particle sizes varying from 1/16 mm to 2 mm. Sandstones are generally sand.
Siltstones (or generally silt) are those rocks, which have particle sizes varying from 1/256 mm to 1/16 mm.
Hence, the conglomerate has the largest particle size, the sandstone has a medium particle size and the siltstone has the smallest particle size.
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which concept is being illustrated when a tablecloth is quickly yanked beneath dishes resting on a table?
a. equilibrium
b. friction
c. support force
d. inertia
Inertia is being illustrated when a tablecloth is quickly yanked beneath dishes resting on a table.
Answer is D.
What is Inertia ?
Inertia is a property of matter that causes an object to resist a change in its state of motion. This means that an object that is at rest will stay at rest, and an object that is in motion will stay in motion, unless an external force is applied to it.
Inertia is one of the fundamental laws of physics and is closely related to mass. Objects with greater mass have greater inertia, meaning that it takes more force to move them. Inertia is also responsible for the resistance of objects to changes in their speed or direction.
This can be seen in motion such as throwing a ball, where the ball will maintain its velocity until it is acted upon by an outside force. Inertia is also responsible for the momentum of objects, which is the product of mass and velocity.
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identify the INDEPENDENT and DEPENDENT variables in each of the following research statements
1) Studying the role of gender on reading scores.
2) Examining the effect of Prozac on symptoms of depression.
3) A researcher is interested in how the activity level of 4 year old children is affected by viewing a 30 minute
video of teenage mutant nijna turtles or a 30 minute video of elmo.
4) A therapist wants to test a new drug designed to increase the ability of teenagers with ADHD to take
accurate notes in class.
5) Participants taking part in a sleep study to determine whether the number of hours of sleep a person gets
determines how well they will do on an exam.
Answer:
Explanation:
INDEPENDENT DEPENDENT
1) gender reading scores
2) taking Prozac symptoms of depression
3) watching turtle video, activity level of 4 YOs
watching elmo video
4) Taking new ADHD drug accuracy of note-taking
5) # of hours of sleep exam scores
The following gives the calorimetric values for water at various phases:
Latent heat of vaporization for water: 22.6 E5 J/kg
Specific heat capacity for liquid water: 4,186 J/kg°C
Specific heat capacity for steam is 2,080 J/kg°C
A 19-g sample of liquid water at 80.0 °C is converted to steam at 115 °C. Using the values from the table above, calculate the heat required for that conversion.
45,000 J
49,000 J
We can calculate the heat required to vaporize the liquid water into steam: q = m * L
q = 0.019 kg * 22.6 E5 J/kg = 4,241 J
So, the total heat required for the conversion of liquid water to steam is the sum of the two:
q = 2,958 J + 4,241 J = 7,199 J
Therefore, the heat required for the conversion of liquid water to steam is 7,199 J.
What is the latent heat of vaporization?The heat required to vaporize a liquid is known as the latent heat of vaporization. It is the amount of heat energy required to change the state of a substance from a liquid to a gas or vapour, without changing its temperature.
What is the importance of latent heat of vaporization?The latent heat of vaporization is a characteristic property of a substance and is specific to each substance. The value of the latent heat of vaporization is usually expressed in units of joules per kilogram (J/kg).
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A company uses drones to fly food to people in regions that have experienced natural disasters. The food is packed in boxes that are attached to parachutes. How can the company change the design of its parachute to reduce the number of boxes that are damaged when they hit the ground? (1 point)
The company can design a parachute with more surface area.
The company can design a heavier parachute.
The company can design a smaller parachute.
The company can design a lighter parachute.
The parachute can be redesigned with more surface area by the company change it and make heavier. Thus, the correct option is B.
What is Air resistance?Air resistance is a force which is caused by the air. This force acts in the direction which is opposite to the direction in which the object is moving through the air.
We know that the way in which the parachute functions would be related to the way in which they are designed. We have to know that if the parachute is very heavy in weight, then it is going to take a shorter time for the parachute to reach the ground level because the air resistance would be overcome by the weight of the parachute only.
For the redesigning of the parachute. The best option is to ensure that the parachute is made in such a way that it is much heavier in weight and able to travel through air more easily.
Therefore, the correct option is B.
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The speed of light is 2.998 times 10^8 m/s. How far does light travel in 1.0 mu/s? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols.
The distance that the light travels in 1.0 μs is 2.998 × 10⁸ m/s × 1.0 × 10⁻⁶ s. It is just a math expression obtained by the equation of speed.
What is the equation of speed?The equation of speed can be expressed as
Speed = Distance/Time
The speed of light = 2.998 × 10⁸ m/s. If the light travels in 1.0 μs, find the distance! Just set up the math and don't do any of it!
We know that μ (read miu or micro) is equal to 10⁻⁶ s.
We can use the equation above to find the distance that the light travels in 1.0 μs.
Distance = Speed × Time
Distance = 2.998 × 10⁸ m/s × 1.0 μs
Distance = 2.998 × 10⁸ m/s × 1.0 × 10⁻⁶ s
We only need the math expression, so that's the answer.
Hence, in 1.0 μs, the light travels in a distance of 2.998 × 10⁸ m/s × 1.0 × 10⁻⁶ s.
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What is the relationship between temperature and humidity? Directly proportional or inversely proportional, if temperature increases/decreases, does humidity decrease/increase?
Simply put, the formula for the relationship between humidity and temperature is that they are inversely proportional.
The relative humidity will drop as the temperature rises, making the air drier; conversely, if the temperature drops, the air will get wet and the relative humidity will rise.
Is the relationship between temperature and humidity inverse?Temperature and humidity have an inversely proportionate relationship. The relative humidity will decrease as temperature rises, making the air drier. As a result of the air becoming wetter as the temperature drops, the relative humidity will rise.
Does temperature cause humidity to rise or fall?With the same quantity of absolute/specific humidity, air will have a HIGHER relative humidity if it is cooler and a LOWER relative humidity if it is warmer because warm air may contain more water vapor (moisture) than cold air.
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What is the atomic number of nitrogen (N)? The periodic table
Answer:7
Explanation:
:)
Answer: It's 7.
Explanation:
This means there are 7 protons and 7 electrons in the atomic structure.
nicole throws a ball straight up. chad watches the ball from a window 5.50 m above the point where nicole released it. the ball passes chad on the way up, and it has a speed of 15.0 m/s as it passes him on the way back down.How fast did Nicole throw the ball?
Nicole threw the ball with an initial velocity of 22.1 m/s.
To determine the initial velocity that Nicole threw the ball, we can use the conservation of energy equation, which states that the initial kinetic energy of the ball plus the potential energy due to its height is equal to the final kinetic energy of the ball plus the potential energy due to its height.
The equation can be expressed as:
1/2 * m * Vo^2 + m * g * h = 1/2 * m * V^2 + m * g * h, where m is the mass of the ball, g is the acceleration due to gravity, h is the height difference, Vo is the initial velocity, and V is the final velocity.
Plugging in the known values, we can rearrange the equation to solve for Vo:
Vo = √(V^2 + 2gh) = √(15^2 + 2 * 9.8 * 5.5) = 22.1 m/s.
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