Answer:
0.00000408
Explanation:
List 5 possible effects of not adhering to standards of measurement
Explanation:
Without the metric system, we'd have a different International System of Units, the metric system is important because 1mm is 0.1cm, 1 cm is 0.01m, with the imperial system the conversion is tedious. The most important feature of the metric system is its base in scientific fact and repeatable standards of measurement
Describe an example of Newton’s 1st Law of Motion (the motion of an object remains the same unless it is acted upon by a force)
Answer:
if your in a car and you suddenly stop since you were in motion you fling forward while the car is stopped because an object in motion stays in motion unless it's stopped by an outside force and that's why we have seatbelts
Newton’s 1st Law of Motion is the motion of an object remains the same unless it is acted upon by a force.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
If your in a car and you suddenly stop since you were in motion you fling forward while the car is stopped because an object in motion stays in motion unless it's stopped by an outside force and that's why we have seatbelts.
Newton’s 1st Law of Motion is the motion of an object remains the same unless it is acted upon by a force.
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what are electromagnetic waves?
a) things like longitudinal waves
b) ocean waves
c) sound waves
d) electric magnetic fields that travel through a space very quickly
When the Moon passes through Earth's penumbra, it is a:
a.Solar eclipse
b. Penumbral eclipse
c.Total lunar eclipse
d Partial eclipse
Answer: it is B
Explanation: A penumbral lunar eclipse occurs when the Moon passes through Earth's penumbra. The penumbra causes a subtle dimming of the lunar surface, which is only visible to the naked eye when about 70% of the Moon's diameter has immersed into Earth's penumbra.
The speed of sound through diamond is about 12,000 m/s. The speed of sound through wood is about 3,300 m/s. Which statement explains why the speed of sound is different through these materials?(1 point)
They have different rigidities.
They have different temperatures.
They have different phases of matter.
They have different salinities.
Answer: They have different rigidities.
Explanation:
The speed of sound is different through these materials because, they have different rigidities.
What is meant by rigidity of a material ?The property of a material that prevents its shape from changing as a result of an external force is known as rigidity.
Here,
Given that, the speed of sound through diamond is about 12,000 m/s and the speed of sound through wood is about 3,300 m/s.
This is due to the variation in rigidity of the materials through which the sound is travelling.
The stiffness of the medium (or compressibility in the case of gases) and its density work together to define the speed of sound in that medium. The speed of sound increases with the rigidity of the medium. The speed of sound decreases with increasing medium density.
Hence,
The speed of sound is different through these materials because, they have different rigidities.
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TRUE or FALSE? If an object moves in a circle at a constant speed, its velocity vector will be constant. Explain your answer.
It's false. The length of the vector is going to remain the same but the direction is going to change.
Many objects within our solar system remain in constant motion and maintain predictable orbital patterns. What force governs the motion and patterns of objects in our solar system?
Answer:
Gravitational pull of the sun
Explanation:
How is the Heisenberg uncertainty principle related to electron orbitals?
Explanation:
Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrödinger equation, and the Heisenberg uncertainty principle. Electron spin and the Stern-Gerlach experiment.
How do you calculate the average velocity of mercury as it orbits the sun?
Answer:Hope this helps!!!!!
Explanation:
People are fascinated with high-speed travel. A Boeing 747 flies at about 550 miles per hour. The Concorde Supersonic Transport flew over twice as fast at about 1350 miles per hour. That is impressively fast, but consider the speeds that we passengers on planet Earth always travel. The circumference of the Earth at the equator is 24900 miles and the residents of the tropic areas travel that distance every 24 hours. They are traveling over a thousand miles an hour. At 38° latitude we are traveling about 820 miles per hour. That is quite impressive but it pales in comparison with the orbital speed of the Earth, The average distance of the Earth from sun is 93.5 million miles. This means that in 365.25 days the Earth travels 587.5 million miles. This works out to about 67 thousand miles per hour. This is the speed we travel 24 hours a day, 365.25 days a year.
The orbital velocity is 2πR/T where R is the average radius of the orbit and T is the length of the year. The orbital velocity of a planet relative to that of Earth's is then the relative radius divided by the relative length of the year.
Which of the following best compares the structures in protists and fungi that allow these organisms to explore their environment. Question 2 options: Protists and fungi move using cilia, flagella, and hyphae. Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae. Protists move using hyphae. Some fungi move using cilia, and flagella. Neither protists nor fungi have cilia, flagella, and hyphae. They obtain energy only if the food source moves by them.
Answer:
Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae.
Explanation:
trust me
Why does an iceberg have more HEAT than a cup of coffee.
Explanation:
Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee
Answer:
The hot coffee has a higher temperature, but not a greater internal energy. Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee.
Explanation:
describe tension force (FT) in your own words
Answer In the field of physics, tension is called the force that is exerted by the action of a cable, rope, chain or other similar solid object. ... Since tension is a magnitude of force, it is measured in newtons and is always measured in a direction parallel to the chord on which it is applied.
Explanation:
A skydiver of mass mmm jumps from a hot air balloon and falls a distance ddd before reaching a terminal velocity of magnitude vvv. Assume that the magnitude of the acceleration due to gravity is g.
Required:
Find the power Pd supplied by the drag force after the skydiver has reached terminal velocity v. (in same terms)
Answer:
Explanation:
When the object falling attains terminal velocity , net force on it becomes zero. That means drag force becomes equal and opposite to its weight.
So drag force = mg
where m is mass of falling body and g is acceleration due to gravity .
The drag force is constant . It is doing work against the weight of falling body . Object is falling v m /s . That means drag force is doing work per second as follows
Work done per second = force x displacement per second
= mg x v
So
Power of drag force = mgv.
Pd = mgv.
a boy throws a small stone into a pond. waves spread out from where the stone hits the water and travel to the side of the pond. the boy notices that eight waves reach the side of the pond in a time of 5.0 s. what is the frequency of the waves
Answer: 1.6Hz
foe[vqefmvkeqmvkevkefmvqelkfveklveqv
What is an effect of an object getting wet?
Answer:
once light hits a wet shirt, that water layer causes less of the blue shirt's blue wavelengths of light to be reflected toward your eyes and more of the blue light to be refracted, or bounce away from you, back into the fabric.
Explanation:
How do our previous experiences apply to attribution theory?
Answer:
Attribution theory is concerned with how ordinary people explain the causes of behavior and events. ... “Attribution theory deals with how the social perceiver uses the information to arrive at causal explanations for events. It examines what information is gathered and how it is combined to form a causal judgment”. Therefore it is like cause and effect, but just with our feelings and actions.
Explanation:
It basically helps us reflect and open up on what we have done in an easier way...
A vector is 0.888 m long and
points in a 205 degree
direction.
Find the y-component of the
vector.
hing
y-component (m)
Answer:
182.04
Explanation:
0.888×205=n
that where you the answer
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2) Describe the qualities and the location of supergiant stars based on the H-R diagram.
Answer:
55
Explanation:
A car is left overnight in a parking lot. What is its instantaneous speed at 12:01 a.m.?
Answer:
0 mph
Explanation:
Answer:
0 mph
Explanation:
Hello, I need help answering and explaining the question in the attached image. It includes the figures plus the question and the multiple choice answers. Thank you!
Answer:
d.
Explanation:
Since the dart's initial speed v at angle has both vertical and horizontal components v₀sinθ and v₀cosθ respectively, the vertical component of the speed continues to decrease until it hits the target. It's displacement ,s is gotten from
s = y - y₀ = (v₀sinθ)t - 1/2gt² where y₀ = 0 m
y - 0 = (v₀sinθ)t - 1/2gt²
y = (v₀sinθ)t - 1/2gt²
which is the parabolic equation for the displacement of the dart.
Note that the horizontal component of the dart's velocity does not change during its motion.
Since the target falls vertically, with initial velocity u = 0 (since it was stationary before the string cut), it's displacement ,s' is gotten from
s' = y - y₀' = ut - 1/2gt² where y₀' = initial height of target above the ground
= (0 m/s)t - 1/2gt²
= 0 - 1/2gt²
y - y₀' = - 1/2gt²
y = y₀' - 1/2gt²
which is the parabolic equation for the displacement of the target.
The equation for both the displacement of the dart and the target can only be gotten if we considered vertical motion. So, the displacement component of both the dart and target are both vertical.
So, the answer is d.
At which position is the LOWEST potential energy?
The recoil of a cannon is probably familiar to anyone who has watched pirate movies. This is a classic problem in momentum conservation. Consider a wheeled, 500 kg cannon firing a 2 kg cannonball horizontally from a ship. The ball leaves the cannon traveling at 200 m/s. At what speed does the cannon recoil as a result?
Answer:
0.8 m/s
Explanation:
From the question,
MV = mv............................. Equation 1
Where M = mass of the cannon, m = mass of the cannonball, V = velocity of the cannon, v = velocity of the cannon ball.
make V the subject of the equation
V = mv/M........................ Equation 2
Given: m = 2 kg, M = 500 kg, v = 200 m/s
Substitute these value into equation 2
V = (2×200)/500
V = 400/500
V = 0.8 m/s
Though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data.
True or False?
Select one:
True
False
The statement "though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data" is true.
What is a survey?A survey is a means of gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.
It is given that:
The statement is:
Though some self-report errors may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data.
As we know from the definition of the survey, the gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.
Even while surveys and interviews aren't perfect, you may still get a lot of information from them.
Thus, the statement "though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data" is true.
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How do I solve for the maximum height of someone who jumps straight up leaving the ground at 6.0 m/s.
Answer: 3.0 m/s
Explanation:
sound waves have a frequency of 1000 hz what is their period?
Answer:
Solve it
Explanation:
The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.
What are some indicators of energy transformations?
Explanation:
Contact, vision, sound, flavor, and smell are all markers of energy transformations. The most basic example would be when we notice something has begun to pass through vision. Whenever an entity accelerates or slows down, energy is constantly transformed.
4. A 3000 kg plane has an acceleration of 12 m/s/s on take off. What net force is exerted on the plane?
Answer: 36000 N
Explanation: I REALLY HOPE THIS HELPS I'M KINDA NEW AT THIS:] :]
17. How long does it take a giraffe running at a speed of 33 m/s to run 200 meters !
Answer:
6600sec
Explanation:
T=sv
T=200m*33m/s
T=6600sec
Kara drops a rock from the edge of a cliff and it takes 7.00 s for the rock to reach the ground. What is the cliff’s height?
Answer:
h = 204.1 m
Explanation:
Given that,
Time taken to reach the ground, t = 7 s
We need to find the height of the cliff. We can find it using second equation of kinematics as follows :
[tex]h=ut+\dfrac{1}{2}at^2[/tex]
Here,
u = 0 (at rest initially)
a = g
So,
[tex]h=\dfrac{1}{2}gt^2\\\\h=\dfrac{1}{2}\times 9.8\times 7^2\\\\h=204.1\ m[/tex]
So, the cliff's height is 204.1 m.
The helium-filled balloons below are carrying negative electric charges, as shown. Attach two of the balloons to the hooks below to show what would happen if a red balloon and a blue balloon were brought near each other. Plzz help
Answer:
these are in the hooks the balloons repel each other if the hooks are isolated.
Explanation:
In electrostatics, charges of the same sign repel and of a different sign attract each other.
With this explanation we analyze the situation presented, they indicate that the balloons have a negative taste, so when these are in the hooks the balloons repel each other if the hooks are isolated.
If the hooks are connected to Earth, the poop of the balloons is neutralized, so there is neither attraction nor repulsion.
Answer:
Here you go : )
Explanation: