If the plane is flying horizontally and suddenly pulls upward, the nose of the plane tends to move upwards as the tail moves downwards.
A plane (formally an airplane) is a fixed-wing aircraft that is propelled forward by the thrust of a jet engine, propeller, or rocket engine.
All flight controls use the same basic lift principles as wings. When the pilot moves the controls, they produce lift of nose either up or down.
When the pilot pulls on the control column, the elevator moves up. This creates a wing-like curve on the surface that pulls the tail down. By moving the tail down, the nose of the aircraft rises.
When the pilot pushes forward on the controls, the elevator points down. The opposite happens and there is a lift that pulls the tail up. Pulling the tail up causes the nose of the plane to drop down.
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A dart with a mass of 0.6 kg is thrown at 10.8 m/s and sticks into a 1.9 kg apple hanging
on a string. What is the velocity of the dart and apple just after the dart is embedded?
The x component of the center of mass's velocity vector cannot change since the overall momentum is conserved. Consequently, the apple's and dart's velocity is 5 m/s.
What is the speed of the apple and dart right after the dart has pierced it?Equation 1: According to the equation of conservation of momentum, mu+m'u' = V(m+m')
Where m is the dart's mass, m' is the apple's mass, u is the dart's initial velocity, u' is the apple's initial velocity, and V is the dart and apple's subsequent velocity after becoming embedded.
Making V the equation's object,
V = (mu + m'u ) / (m + m )
Given: u = 15 m/s, u' = 0 m/s, m = 50 g = 0.05 kg, m' = 100 g = 0.1 kg ( at rest)
Replace in equation 2
V = (0.05×15+0.1×0)/(0.05+0.1)
V = 0.75/0.15
V = 5 m/s.
Consequently, the apple's and dart's velocity is 5 m/s.
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a car starts from rest and goes down a hill with a constant acceleration of 5 m/s2 after 5s the car reaches the bottom of the hill what is the car's final speed
Answer:
25m/s
Explanation:
Velocity Final is equal to velocity initial plus acceleration times time
(Vf=Vi+at)
Vi=0
A=5
T=5
Vf=0+5x5
vf=5x5
Vf=25 m/s
5-ohm resistor is connected to a 1.5 V battery. The 5-ohm resistor is replaced with a smaller resistor.
In order to keep the current through the resistor the same, what should be done to the voltage of the
battery?
(A) Increase it
(B) Decrease it
(C) Keep it the same
sara, who weighs 69 kg, is on a guilt trip after eating a 838-calorie (838 kcal) breakfast of pancakes loaded with fruits, cream, and syrup. she decides to work out before going to her weekly weight-watchers' meeting. if the height of a single stair is 12 cm, and her body is only 27% efficient in converting chemical energy to mechanical energy, determine the number of stairs sara must climb to cancel out the calories consumed.
The number of stairs Sara must climb to cancel out the calories consumed is 11667 stairs
How do I determine the number of stairs?To obtain the number of stairs Sara much climb, we'll begin by obtained the total height. This can be obtained as follow:
Mass (m) = 69 KgEnergy consumed = 838 Kcal = 838 × 4184 = 3506192 JPercentage conversion = 27%Mechanical energy (E) = 27% × 3506192 = 946671.84 JAcceleration due to gravity (g) = 9.8 m/s² Total Height (h) = ?E = mgh
946671.84 = 69 × 9.8 × h
946671.84 = 676.2 × h
Divide both sides by 676.2
h = 946671.84 / 676.2
h = 1399.99 m
Finally, we shall determine the number of stairs. Details below:
Total height = 1399.99 m = 1399.99 × 100 = 139999 cmHeight of one stair = 12 cm Number of stairs =?Number of stairs = Total height / height of one stair
Number of stairs = 139999 / 12
Number of stairs = 11667 stairs
Thus, the number of stairs is 11667 stairs
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look at picture for question
Answer:
third one
Explanation:
x is always the least sum of a calculation as per as the chart it's nb-90
A charge of 3 C flows through a lamp and loses 12 J of electrical energy.
a) What is the potential difference across the lamp?
b) What happens to the 12 J of electrical energy?
Answer: yo your in high bro u need to learn this stuff if you want to past u fell me ? Explanation:
a wire with mass 40.0 g is stretched so that its ends are tied down at points 80.0 cm apart. the wire vibrates in its fundamental mode with frequency 60.0 hz and with an amplitude at the antinodes of 0.300 cm. (a) what is the speed of propagation of transverse waves in the wire? (b) compute the tension in the wire. (c) find the maximum
The speed of propagation of the transverse wave in the wire is 4800 cm/s. The tension in the wire is 15.71 N and the maximum transverse acceleration is 11,105,600 cm/s².
A transverse wave is a type of wave in which the particles of the medium move in a direction perpendicular to the direction of energy propagation. Examples of transverse waves include light, radio, and other types of electromagnetic waves.
The speed of propagation is the speed at which a signal travels through a medium, such as a wire, fiber optic cable, or radio wave.
(a) Speed of propagation of the transverse wave in the wire =
v = λf
= (80.0 cm) (60.0 Hz)
= 4800 cm/s
b)Tension in the wire = F/A
= m(ω² X A_max) / A
= (40.0 g)(2π² X 60² X 0.300 cm²) / (80.0 cm)²
= 15.71 N
(c) Maximum transverse velocity = A_max X ω
= 0.300 cm X 2π X 60 Hz
= 1842.4 cm/s
Maximum transverse acceleration = A_max X ω²
= 0.300 cm X (2π X 60)²
= 11,105,600 cm/s²
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How much heat is removed from 60.0 g of steam at 100.0°C to change it to 60.0 g of water at 20.0°C?
Explanation:
this question we need to find the amount of heat they just removed from 60 g of steam At 100°C. To change too 60 g of water two 20 degrees Celsius. The specific heat of liquid water As 4.184 jewel program degree Celsius specific heat of steam As 1.84 joules per gram degree C. Heat off vaporization of water to is 40.67. Kill a jewel family. First this 60 g of 18 has converted to 60 g of water at 100°C. As the heat removed will be en indu L status and as the number of malls and Elysa heat of vaporization, that is 40.67. Hello Joel palmer so that each one that is the heat removed is equal to 60 indu 40.65 divided by 18. That is the given Mars by Moller mass gives the number of moles. That is by 16 to 40.65 by 18. Such that H one. The heat remote is obtained us 1 35.5 kg jule. Now the water is converted from 100°C to 20 degrees Celsius. The heat at a more can be calculated by mm indu C'e, hindu deity. That is M is the mass. C is the specific heat capacity. That is 4.18 Joule per kilogram and DT is the change in temperature that is 100 minus 20. That is 80°C says that he'd removed H2 is equal to .06 Hindu 4.18. For in due 100 minus 20 obtained us 20 kg jokes. Thus the total heat. Little mood will be H one Plus H two. That is 1 35.5 plus 20 And it has obtained as 155.5 kilo jule.
If you could take an escalator up the stairs instead of walking, how much work would the escalator do compared to your walking up the stairs?
The amount of work required to climb steps or to remain motionless while mounting a moving escalator is the same in both situations, however in the first case, the effort is in pushing the body upward, whereas in the second, it is in pushing the escalator downward.
What is work?In physics, the term "work" refers to the measurement of energy transfer that takes place when an item is moved over a distance by an external force, at least a portion of which is applied in the direction of the displacement.
The length of the path is multiplied by the component of the force acting along the path to calculate work if the force is constant. The work W is theoretically equivalent to the force f times the distance d, or W = fd, to represent this idea. Work is done when a force is applied at an angleα of to a displacement, or W = fd cosα.
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as the glacier melts, water travels toward the ocean along the geological feature labeled x. when water erodes soil along this feature, the feature will most likely become —
When water erodes soil along the feature, the feature will most likely become wider.
What does the volcanoes' tectonic behavior imply?The creation of an island arc by the volcanoes indicates a converging plate boundary. A diverging plate boundary is shown by the line of volcanoes. Two plates clashing results in faulting and magma formation. These tectonic motions result in earthquakes, mountain formation, and volcanism.
How does the water change when a glacier melts?Temperature increases cause mountain glaciers to melt, changing the water supply. As the glacier melts, more water first moves lower and away from the glacier. The water supply will be diminished as the glacier retreats, and towns, cities, and farms could lose a significant source of water.
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define from which of Earth's systems are mineral resources obtained?
Sources of mineral resources are most commonly magma, sediments, or hydrothermal fluids.
Examples of mineral resources are iron, diamond, gold, silver, copper, aluminum, granite, marble, clay, salt, rare earths or fossil fuels.
What are mineral resources?
A mineral resource is a concentration of natural solid inorganic or fossilized organic matter, including metals, coal and minerals, in sufficient quantity and quality to have reasonable prospects for economic exploitation. This definition has a broader scope than mineral reserves that are likely to be economically recovered based on consideration of technical, economic, and legal concerns.
Mineral resources means minerals, naturally occurring solid inorganic substances, or naturally occurring solid fossilized organic substances (including base metals, precious metals, coal and industrial minerals), in or on the earth's crust, such Means concentrated or occurring in form and quantity and in its grade or quality. There are reasonable prospects for economic development. The location, quantity, grade, geological features and continuity of Mineral Resources are known, estimated or interpreted on the basis of specific geological evidence and knowledge.
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Gwen Goldfish, a speed swimmer, loves to race around the park’s pond, which is 1 kilometer around. If she can swim 20 laps around the track in 2 hours, what is her average speed?
The average speed of swimmer is 10 km/hr.
Speed is the rate of change of position of an object in any direction.
Distance is the total movement of an object without any regard to direction.
Given distance of pond is 1 km.
She swims 20 laps , i.e. total distance = 20 * 1 km = 20 km
Time taken to complete = 2 hr
There a relation between speed distance and time which is given by:
Speed = Distance / Time
⇒Speed = 20/2 = 10 km/hr
So the average speed of swimmer is 10 km/hr.
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what is the magnitude of the momentum of a billiard ball if it is traveling with a velocity of 3m/s due to east, and has a mass of 0.2 kg?
This is the magnitude of the momentum of the billiard ball is 0.6kgm/s.
The magnitude of the momentum of an object is given by the formula
p = mvwhere m is the mass of the object and v is its velocity. Substituting the given values, we find that
p = (0.2 kg)(3 m/s) = 0.6 kgm/s.Momentum is a measure of an object's tendency to continue moving in a straight line at a constant velocity. It is defined as the product of the object's mass and its velocity. The magnitude of an object's momentum is a measure of its strength or force and is directly proportional to the object's mass and velocity.
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b) if the moon followed the same orbital plane but was twice as far away, would there be solar eclipses?
The Moon's phases would not change, and total solar eclipses would not be conceivable. A 5° angle separates the Moon's orbital plane from the Earth's (ecliptic) orbital plane.
What would happen if the moon was in the same orbital plane as Earth?The Moon could never entirely cover the solar disk if it were any smaller or orbited the Earth any further away. If the Moon were a little bit bigger or orbited the Earth a little bit closer, it would cover much of the sun's corona during totality, making eclipses far less impressive. One orbit of the moon around the Earth is completed in around one month.
There would be at least two eclipses per month if the moon orbited in the same plane as the ecliptic, the Earth's orbital plane. Ides would be far higher.The moon would produce eight times more powerful tidal forces (tides are inversely proportional to the cube of distance). The moon would seem in the night sky four times as brilliant and twice as large.
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A 2400-kg car is moving at 20 m/s when it slams on the brakes and skids to a stop with a leftward acceleration
of 7 m/s/s.
The braking force that caused the car to skid to a stop is given by the equation:
Force = mass * acceleration
Plugging in the values for the mass of the car (2400 kg) and its acceleration (-7 m/s/s), we get:
Force = 2400 kg * (-7 m/s/s)
= -16800 N
This is the force that the brakes had to exert on the car in order to bring it to a stop. This force would have acted in the opposite direction to the car's motion, or to the right in this case.
nuclear decay occurs according to first-order kinetics. a nuclide decays in 3.40 days from 45.0 g to 12.1 g. what is the rate constant for the nuclide?
The equilibrium law for the nuclide is 0.388 days per one, according to the release.
We may make comparable calculations using the half-lives of isotopes to calculate the ages of geological and archaeological objects since nuclear decay reactions follow first-order kinetics and have a rate constant that is independent of temperature and the chemical or physical environment.
The elimination rate in relation to the total plasma concentration is the primary distinction between zero and first-order kinetics. No matter the plasma concentration, zero-order kinetics exhibit constant elimination, which is followed by a linear elimination phase as the system reaches saturation.
The first-order radioactive decay law states that the number of radioactive atoms (N) present at time t determines the rate of decay (number of disintegrations per second) i.e. N = No e-λt
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a 60 kg load is located at the very end of a uniform board of length l, which is supported one-quarter of the way from the end and is balanced. what is the mass of the board?
The Mass of the board is also 60kg when a 60 kg load is located at the very end of a uniform board of length l, which is supported one-quarter of the way from the end and is balanced.
What is the Mass of the board ?The Mass of the board is also 60kg because of a 60 kg load is located at the very end of a uniform board of length l which is also balanced and supported by one end.
Given:
Load is located at the very end of a uniform board= 60Kg
length of uniform board = L
Solution:Now to find the mass of the board do as follows;
⇒FN(l/4)-Mg(l/4)-60g(l/4)=0
⇒Mg(1/4)=60g(1/4)
⇒M(mass)=60kg
Hence , the Mass of the board is also 60kg .
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a 250 word formal essay Describe factors that influence one's food choices. Include explanations on how food choices reflect one's culture, ethnic backgrounds, and/or perhaps one's religious beliefs.
In writing an essay you must consider the structure of the essay, Hence, the structure of the essay should be considered;
The Introduction The body'The conclusionWhat are the factors that influence one's food choices?Generally, Individual factors, such as expertise, personal taste choice, emotions, hunger level, health status, special dietary requirements, ethnicity, and personal income, are some examples of these influences that make a contribution to an individual's food choices.
Other examples of these influences that contribute to a person's food choices include outside factors.
A person's religious beliefs may have a significant impact on the kinds of meals they purchase. For instance, individuals who follow the religion of Islam will not consume cattle or lamb that has not been killed using the halal procedure, but those who follow the religion of Jews will only consume items that have been certified as kosher.
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a hiker of mass 59 kg is going to climb to the top of mount tam, which has an elevation of 2,574 ft.part (a) if the hiker starts climbing at an elevation of 560 ft, what will their change in gravitational potential energy be, in joules, once they reach the top? assume the zero of gravitational potential energy is at sea level.
457280.13 8 J change in gravitational potential energy is needed.
where
m = 68 kj
H = 2574 ft
where = 32 5 ft
a )if Gravitational potential energy is zero at see level .
then at strating
point,
Equation
G. P . E ( Ui ) = mgh
Change in G PE ;
AU = UJ - Vi
= mgy- mgh = mg ( H-h)
= 68 x9.81 [2574 - 325 0.3048
AU = 457280' 138 Joules
at top
GPE ( Uf ) = mgy
P . E = 0
GPF = Gravitational potential Energy .
at Top ape = 0
b)then change in GPE ;
ΔU = U(top) - Vata
= 0 - [-mg ( 4-h )]
= mg ( H-h j
= 68 * 9 . 81 [ 257 4 - 325 ) 0.3048
ΔU = 45 7280 . 13 8 J.
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What is the relationship between the magnetic force and the distance between the magnets?
The strength of the magnetic force is inversely proportional to the square of distance between the magnets. Thus, as the distance increases, force between the magnets decreases.
What is magnetic force?Magnetic force, is the force generated by magnetic flux lines arised from a magnetic field. A magnet have a south pole and north pole. There will be repulsive force between two like poles and attractive force between two unlike pole.
The force between two objects is always in inverse proportion with the distance and this is well explained by Coulomb's law of forces.
Thus, F ∝ 1/r² where, r is the distance.
Therefore, as the distance between two magnets increases the magnetic force between them decreases.
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Someone in a car going past you at the
speed of 45 m/s drops a small rock from a
height of 2.1 m.
How far from the point of the drop will the
rock hit the ground? The acceleration due to
gravity is 9.8 m/s Answer in units of m.
Answer:
The rock hits the ground 29.25 m far from the point of drop.
Explanation:
We know,
s = ut + 1/2 at²
to find the time taken for the rock to hit the ground, where u is 0 and a = g,
2.1 = 4.9t²
t = 0.65
The horizontal distance covered in this time:
distance = speed x time
d = 45 x 0.65
d = 29.25 m
consider a wave passing through a single slit. what happens to the width of the central maximum of its diffraction pattern as the slit is made half as wide?
Therefore, if the slit width an is cut in half, the central maximum expands to double its original size.
What do waves in physics mean?A wave is an energetic disruption in a fluid that doesn't include any net particle motion. Elastic deformation, a change in pressure, an electrical or magnetic intensity, an electric potential, or a shift in temperature are a few examples.
A unit of wavelength?The SI system for wavelength is the meter, which is frequently abbreviated as m. Frequency is measured using multiples or subdivision of a meter. Notably, exponential ratios of 10 are employed when widths are a key aspect.
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The complete question is-
Consider a wave passing through a single slit. What happens to the width of the central maximum of its diffraction pattern as the slit is made half as wide?
Its width does not change.
It becomes one-half as wide.
It becomes twice as wide.
It becomes one-fourth as wide.
It becomes four times wider
a 2.3 kg box, starting from rest, is pushed up a ramp by a 10 n force parallel to the ramp. the ramp is 2.0 m long and tilted at 17 ∘. the speed of the box at the top of the ramp is 0.80 m/s.
The force exerted on the system produces WD = 20J and K.E = 0.736J of work if a speed of a box that appears of ramp is 0.80 m/s.
What is force in science?At this point, describing a force as pushing or pulling is quite acceptable. There is no such thing as a force how an item "has in it" and "contains." A force is applied to one thing by another. The idea of the a force encompasses both living and non-living things.
Briefing:Mass m = 23kg
Force F = 10N
Length of the ramp = 2m
Velocity V = 0.8m/s
The force's efforts on the system that results in
WF = F × D = 10 × 2.0 = 20 J
The force's efforts on the system that results in, u = 0.
dKE = ½mv² = 0.5 × 2.3 × 0.8 × 0.8
= 0.736 J
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Calculating Net Force
For each diagram net force and direction calculated.
Part - 1
1) Net force = 0
no direction
balanced
2) Net force = 87
direction →
unbalanced
3) Net force = 42
direction →
unbalanced
4) Net force = 0
no direction
balanced
5) Net force = 24
direction →
unbalanced
6) Net force = 0
no direction
balanced
7) Net force = 92
direction ←
unbalanced
8) Net force = 0
no direction
balanced
Part - 2
1) Net force = 0
2) Net force = 10N
3) Net force = 12
4) Net force = 0
5) Net force = 39N.
How is net force balanced calculated?Here g stands for gravitational force. Numerous additional forces, such as gravitational force Fg, frictional force Ff, and the normal force, act on the body when a force is applied to it. These additional forces serve to balance the applied force. FNet = Fa + Fg + Ff + FN is the result, and it represents the net force formula.
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1) A net force of 2.5 N is applied to an object with a mass of 16.2g what’s the acceleration?
Answer: To determine the acceleration of an object in response to a net force, you can use the equation a = F/m, where a is the acceleration, F is the net force, and m is the mass of the object. In your case, the net force is 2.5 N and the mass of the object is 16.2 g. Since the units of force are in newtons and the units of mass are in grams, you will need to convert the mass to kilograms before plugging the values into the equation.
One kilogram is equal to 1000 grams, so 16.2 grams is equal to 0.0162 kilograms. Plugging this value into the equation, we get:
a = F/m
a = 2.5 N / 0.0162 kg
a = 154.32 m/s^2
Thus, the acceleration of the object in response to the net force of 2.5 N is 154.32 m/s^2.
A 2100-kg car is traveling at 25 m/s when it crashes into the rear end of a 1650-kg
car traveling at 21 m/s in the same direction on nearly frictionless ice. The two cars
become stuck together and slide on the ice. How fast do the two cars move together
immediately after the collision?
A)22 m/s
B)23 m/s
C)21 m/s
D)18 m/s
The two cars will move with a velocity of 23m/s(optionB)
What is linear momentum?Linear momentum is the product of a system’s mass and its velocity. In equation form, linear momentum p is
p=mv.
Where m is the mass of the body and v is the velocity at which it moves.
The momentum of the first call = 2100× 25=52500kgm/s
The momentum of the second car = 1650×21= 34650kgm/s
The total momentum before collision = 52500+34650=87150kgm/s
momentum after collision= (2100+1650)v= 3750v
law of conservation of Linear momentum states that; momentum before collision = momentum after collision
Therefore 87150= 3750v
v = 87150/3750
v= 23m/s( nearest whole number)
Therefore the velocity of the two cars after collision is 23m/s.
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Drag each tile to the correct location.An aspect of climate change involving cloud cover is one example of a negative feedback loop. Complete the steps of this negative feedback
loop.
increased formation
of clouds
decreased temperatures
increased evaporation
from oceans
increased carbon dioxide in
atmosphere
increased greenhouse effect
and warmer temperatures
1
+
increased precipitation
Edmentum. All rights reserved.
The term "climate change" refers to a long-term change in the average weather or climate.
How to illustrate the information about climate change?Changes in the average temperature, the direction of the dominant wind, and the water cycle, which affects cloud cover and precipitation on earth, are the most obvious signs of the change. The size of ice caps and glaciers as well as desertification, wetlands, flooding from rivers that overflow their banks, and desertification are all affected by these changes. Long-term climate changes also have an impact on sea currents, sea level, and seawater salinity.
The observed global warming at the turn of the 20th century brought climate change to light. There have been times in the past that were particularly hot and humid on land or extremely hot and dry. On Earth, it has also been much colder than it is right now, such as during the ice ages. The polar regions and areas near latitudes with a moderate climate today show the biggest variations in climate between the various periods.
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According to ___ in the nec®, unused knockouts and other openings in electrical boxes and cabinets are required to be closed.
For a hit in baseball, compare the force exerted by the bat on the ball to the force exerted by the ball on the bat. Why do bats sometimes break ?
Answer:
Bats sometimes break when the ball is hit with too much force, it could cause the ball to crack or even sometimes break the bat itself.
roller coasters are popular attractions at amusement parks. a cart on a roller coaster approaches the highest point on the coaster. as the cart reaches the top, it slows down.
The roller coaster slows down as it ascends yet another hill. Potential energy is created from kinetic energy.
At the top of the loop, what kind of potential energy does the roller coaster have?The energy that an item has due to its height is called gravitational potential energy (PE = mgh), and it is equal to the mass of the object times its height times the gravitational constant. On a roller coaster, the gravitational potential energy is greatest at the top and lowest at the bottom. As the roller coaster speeds down the hill, the potential energy it had while on a slope is transformed into kinetic energy. The roller coaster slows down as it ascends yet another hill. Potential energy is created from kinetic energy.
How is a roller coaster propelled by energy?The roller coaster is propelled by the conversion of potential energy to kinetic energy, and after it has descended the first hill, it has all the kinetic energy it will require for the trip. Once you're moving, various wheel designs contribute to a pleasant ride. The coaster's running wheels direct it along the track.
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