Answer:
25z
Explanation:
AN AIR CRAFT HEADS NORTH AT 320KM/H RELATIVE TO THE WIND THE WIND VELOCITY IS 80KM/HFROMNORTH .FIND THE VELOCITY OF THE AIR RELATIVE TO THE GROUND
Answer:
Explanation:
See attached file for answer.
What is the Martian atmosphere like ?
Answer:
Mars' atmosphere however is 95% carbon dioxide, 3% nitrogen, 1.6% argon, and it has traces of oxygen, carbon monoxide, water, methane, and other gases, along with a lot of dust. Dust hanging in the air colors Martian skies tan in photos taken from the surface. Relative to Earth, the air on Mars is extremely thin.
Explanation:
what is principal focus and focus length with examples
Explanation:
Principle focus is the point on the axis of a convex lens, where the parallel rays of light from one side of the lens. meet on other side after refraction. Distance between optical centre to principle focus point is the focal length.
Noah and Nina are 15 m apart in a closed room. Noah
says the same sentence twice. The first time, Nina
does not hear the sound, but she does hear the
sentence the second time.
What best describes the difference between the
second sound wave and the first?
The second sound wave reflects off the walls of the
room, so Nina is able to hear the sound.
O The second sound wave travels faster to Nina, so
less energy is dissipated through the air.
O The air molecules in the compressions of the
second wave are more dense, so the sound is
louder
The air molecules in the second wave are spaced
evenly, so a high-frequency wave is produced.
Answer:
The air molecules in the compressions of the second wave are more dense, so the sound is louder.
Explanation:
In a closed room, Noah and Nina are sitting 15 m apart.
As Noah says the same sentence twice, Nina does not hear the sound the first time but she does hear the sentence the second time.
This happens as the air molecules in the compressions of the second wave are more dense. As a result, the sound is louder.
The correct option is ''The air molecules in the compressions of the second wave are more dense, so the sound is louder''
Answer:
C. The air molecules in the compressions of the second wave are more dense, so the sound is louder.
Explanation:
I can confirm that the answer to your question is C.
If C is the vector sum of A and B, C = A + B, What must be true if C = A + B?. What must be true if C = 0?.
What happens to the electrical force if the distance increased by 4 times
A.) 4x the force
B.) 1/4 of the force
C.) 1/16 of the force
D.) 40x the force
If an object is tossed up into the air, what is its velocity at the top of the object's path? (Units are ms-1)
Answer: [tex]0\ ms^{-1}[/tex]
Explanation:
Given
If an object reaches the topmost point i.e. it cannot travel beyond that point as its velocity is zero at the topmost point
As some velocity is needed to move the object, so velocity at topmost point is zero
An 1876 N crate is being pushed across a level force at a constant speed by a force of 747 N. What is the coefficient of kinetic friction?
0.16
0.40
0.08
not enough information
The crate only moves horizontally, so its net vertical force is 0. The only forces acting in the vertical direction are the crate's weight (pointing downward) and the normal force of the surface on the crate (pointing upward). By Newton's second law, we have
∑ F (vertical) = n - mg = 0 → n = mg = 1876 N
where n is the magnitude of the normal force.
In the horizontal direction, the crate is moving at a constant speed and thus with no acceleration, so it's completely in equilibrium and the net horizontal force is also 0. The only forces acting on it in this direction are the 747 N push (pointing in the direction of the crate's motion) and the kinetic friction opposing it (pointing in the opposite direction). By Newton's second law,
∑ F (horizontal) = 747 N - f = 0 → f = 747 N
The frictional force is proportional to the normal force by a factor of the coefficient of kinetic friction, µ, such that
f = µn → µ = f / n = (747 N) / (1876 N) ≈ 0.398188 ≈ 0.40
5. What things would settle in pond water, making it turn to land (terrestrial) succession?
Answer:
Organic matter
Explanation:
As organic matter continue to build up in a pond, vegetation will begin to appear in the pond. The first set of vegetation to appear are the floating vegetation. Subsequently, submersed plants begin to grow also.
With time, organic sediments continue to fill the pond and its depth is gradually decreased. A swamp or bog is now formed.
This trend of succession continues until the pond eventually turns into land.
Where is the most and the least KENETIC ENERGY
Answer:
Where is kinetic energy the least?, and most?
Explanation:
Least : When the Moon is farthest from Earth in its nearly elliptical orbit, its speed is least. Its kinetic energy has become least, and its potential energy is greatest.
Further : Kinetic energy, form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.
May be different for you, but i really hope I helped out.
Imagine you are in a car that’s going 50 mph on the highway. All of the sudden the car comes to a very quick and sudden stop. What happens to your body when the car comes to a stop?
Answer:
you would fall forward due to inertia of motion..
The momentum of an object is determined to be 7.2 x 10-3 cm kg x m/s. Express this as provided or use any equivalent unit. How is this expressed in value and units?
Complete Question:
The momentum of an object is determined to be 7.2 × 10-3 kg⋅m/s. Express this quantity as provided or use any equivalent unit. (Note: 1 kg = 1000 g).
Answer:
7.2 gm/s.
Explanation:
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
[tex] Momentum = mass * velocity [/tex]
Given the following data;
Momentum = 7.2 * 10^-3 kgm/s
1 kg = 1000 g
Substituting the unit in kilograms with grams, we have;
Momentum = 7.2 * 10^-3 * 1000 gm/s
Momentum = 7.2 gm/s.
What are the subsystems of a machine that pops a balloon?
Answer:
The answer is simple machine!!
Distance is best described as
Please help!!!!
Answer:
How much an object has moved
If the frequency of an electromagnetic wave is reduced to one third, what happens to the wavelength?
How many oxygen (O) atoms are in a molecule of SiO2?
O A. 1
OB. 3
C. 4
D. 2
3) 3 A force of -4.4x10^33 N exists between a positive charge of 8.0x10^-4 C and a
negative charge -3.0x10^-4 C. What is the distance that separates the charges?
Answer:
[tex]r=7\times 10^{-16}\ m[/tex]
Explanation:
The force between charges, [tex]F=-4.4\times 10^{33}\ N[/tex]
Positive charge, [tex]q_1=8\times 10^{-4}\ C[/tex]
Negative charge, [tex]q_2=-3\times 10^{-4}\ C[/tex]
We need to find the distance between charges. The force of attraction between charges is given by :
[tex]F=\dfrac{kq_1q_2}{r^2}[/tex]
Where
r is the distance between charges
[tex]r=\sqrt{\dfrac{kq_1q_2}{F}} \\\\r=\sqrt{\dfrac{9\times 10^9\times 8\times 10^{-4}\times 3\times 10^{-4}}{4.4\times 10^{33}}} \\\\r=7\times 10^{-16}\ m[/tex]
So, the distance between charges is [tex]7\times 10^{-16}\ m[/tex].
How do humans impact the carbon cycle?
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification. Humans create horrible pollution, making climate change.
There are 1187 students in a large city school.
There are 42 classes in the school.
Approximately, how many students are in
each class?
Hur decision
Answer:
29 students
Explanation:
1187÷42= 28.26
A football is kicked 40 m. if the ball is is the air for 4 s, with what initial speed was it kicked.
Answer:
10m/s
Explanation:
formula will be speed = distance / time
distance = 40m
time= 4s
if you put them together will be
speed = 40m/ 4s
speed =10m/s
how can we realize that light travel in straight line ?
Answer:
It can be seen from the operation of pin-hole camera, formation of shadows and eclipse.
Explanation:
The phenomenon of light traveling in a straight line is known as rectilinear propagation of light.
One this evidence can be seen from the operation of pin-hole camera, which depends on rectilinear propagation of light
Also two natural effects that result from the rectilinear propagation of light are the formation of Shadows and Eclipse.
8. A partial food web is shown. The mourning dove is a bird that is often part of this food web. Which of these describes the mourning dove when it is part of the food web shown? A Parasite-host relationship with the robin because it uses the robin's nest. B Predator-prey relationship with tent caterpillars because they both use the same resources from the sugar-maple tree. C Producer-consumer relationship with sugar-maple trees because it gets food from the trees. D Producer-consumer relationship with its young because it feeds its young regurgitated food
Answer:
It has producer-consumer relationship with sugar-maple trees because it gets food from the trees.
Explanation:
The mourning bird is primarily a seed eater and not an insect eater. Since it is a seed eater, it will directly from the sugar-maple tree which is the producer.
In an ecosystem, the producers are plants which can trap energy directly from the sun during photosynthesis. This energy is passed on to the consumers.
Hence, the mourning bird has producer-consumer relationship with sugar-maple trees because it gets food from the trees.
Which of these objects has kinetic energy?
Answer:
A ball moving through the air.
Explanation:
The ball has momentum which is a form of kinetic energy.
I don't know if that is correct, but I hope it helps!!!!
What combination of things happen on earth that helps make wind, and the weather on earth? (Please list at least two factors, and explain the best you can!)
Answer:
There are six main components, or parts, of weather. They are temperature, atmospheric pressure, wind, humidity, precipitation, and cloudiness. Together, these components describe the weather at any given time. These changing components, along with the knowledge of atmospheric processes, help meteorologists—scientists who study weather—forecast what the weather will be in the near future.
separate sheet of paper for your answer.
1. A natural hazard that is triggered by a prolonged, heavy rainfall or by other
sources of water which increases the water content of the slope materials
A. Earthquake B. Landslides C. Sinkhole D Volcanic eruption
one carbonate
Answer:
I think its B. Please keep in mind that I could be wrong.
Explanation:
A net force of 125 N is applied to a certain object. As a result, the object accelerates with an acceleration of 24 m/s2. The mass of the object is
Answer:
5.2 kg
Explanation:
mass Is force divided by the acceleration125÷4 5.2083333333The planets move around the stars in different orbits .which planet will have the shortest of revolution (year)?
Planet 1
Planet 2
Planet 3
Planet 4
4 because it's closest to the star
Define 1 pascal pressure
Answer:
Hey mate....
Explanation:
This is ur answer.....
A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared. For example, standard atmospheric pressure (or 1 atm) is defined as 101.325 kPa. The millibar, a unit of air pressure often used in meteorology, is equal to 100 Pa.
Hope it helps you,
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pascal is the SI unit of pressure symbolized by Pa
1 Pa=1N/m^2
1Pa=1kg/ms^2
III. A vehicle is travelling 105 km/h on a highway when the driver sees a moose in the
middle of the lane.
A. Determine the distance travelled by the vehicle while the driver is reacting.
Assume the driver's reaction time is 1.50 S.
what are the four main elements of matter
Answer:
Earth, Water, Air, Fire.
Explanation:
Answer:
Earth, Water, Air, Fire
Explanation:
