A ball falls for 4.6 seconds. From what height was it released?

Star Sorgan of magnitude 1 would appear the brightest out of the following hypothetical stars.  If you use the highest daily position of the Sun to mark the noon time of a day, then you are using Apparant Solar Times. The star magnitude system that goes from 1 to 6 was constructed by Hipparchus. Option 2 is correct.

The apparent brightness of a celestial object in the sky is called its magnitude. The scale is inverted; lower numbers denote greater brightness. The stars are classified using their magnitudes, which is denoted by 'm. 'A star's apparent magnitude is how bright it appears in the sky as seen from Earth. A star's absolute magnitude is how bright it would be if it were a distance of 10 parsecs (32.6 light-years) from Earth.

The highest daily position of the Sun is used to mark the noon time of a day in the Apparent Solar Times timing system. The star magnitude system that goes from 1 to 6 was created by Hipparchus.

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Volume of the parallelepiped determined by the vectors a= ⟨2,4,-1⟩, b=⟨0,3,4⟩, c=⟨2,3,1⟩ using cross product is 20 cubic-units

The volume of a parallelepiped determined by three vectors a, b and c is given by the scalar triple product of these vectors.

Volume = a . (b x c) where x represents the cross product of vectors b and c.

We have a= ⟨2,4,-1⟩, b=⟨0,3,4⟩, c=⟨2,3,1⟩.

Therefore, the cross product of b and c = b x c is given by;b x c=⟨(3x1)-(4x3), (4x2)-(0x1), (0x3)-(2x3)⟩=⟨-9, 8, -6⟩

Now, the scalar triple product is given as follows: a . (b x c)= ⟨2,4,-1⟩ . ⟨-9, 8, -6⟩= 2 (-9) + 4 (8) + (-1) (-6)= -18 + 32 + 6= 20

Thus, the volume of the parallelepiped determined by the vectors a, b and c is 20 cubic units.

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The distance travelled in one direction by an object in unit time is called it's velocity ..

i.e

\(⟹\: velocity\:=\:\frac{distance(metres)}{time(seconds)}\\\)

hey ! ☺️❤️ .

The distance between the base of the hill and the point where the ball hits the ground is approximately 9.72 meters.

We'll use the following terms in our solution:

initial velocity (vi),

time (t),

vertical displacement (h),

and horizontal displacement (x).
Step 1: Find the time it takes for the ball to reach the ground.
We'll use the equation for free fall: h = 0.5 * g * t^2, where g is the acceleration due to gravity (approximately 9.81 m/s²). We'll solve for t.
29.0 m = 0.5 * 9.81 m/s² * t^2
t^2 = (2 * 29.0 m) / 9.81 m/s²
t^2 ≈ 5.92
t ≈ √5.92
t ≈ 2.43 s
Step 2: Calculate the horizontal distance the ball travels.
Now that we have the time, we can find the horizontal distance using the equation:

x = vi * t.
x = 4.00 m/s * 2.43 s
x ≈ 9.72 m
So, the distance between the base of the hill and the point where the ball hits the ground is approximately 9.72 meters.

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The plane travels a distance of 325 miles if the airplane travels for 2.5 hours at an average speed of 130 miles per hour. Using the distance formula (d = rt), we can calculate the distance.

To find the distance traveled by the airplane, we can use the distance formula, which is represented as d = rt. In this formula, "d" represents the distance, "r" represents the rate or speed at which the object is traveling, and "t" represents the time taken for the travel.

Given that the airplane travels for 2.5 hours at an average rate of 130 miles per hour, we can substitute these values into the formula. The rate of the airplane is 130 miles per hour, and the time taken is 2.5 hours.

Using the formula, we can calculate the distance traveled as follows:

d = rt

d = 130 mph × 2.5 hours

Multiplying the rate (130 mph) by the time (2.5 hours) gives us:

d = 325 miles

Therefore, the airplane travels a distance of 325 miles during the 2.5 hours of travel at an average rate of 130 miles per hour.

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Answer:

Yes.

Explanation:

Sound waves travel through metal 17 times faster than air.

Answer:

Positive I believe... because if you drop it it is negative so picking up a book means positive. thanks for the points though!

Explanation:

Can I have brainliest please? <3

The corresponding distance traveled by the orbiter is 1,728.05 feet. Given that the deceleration in feet per second squared during the time that the chute is deployed is −0.0003v2 (speed v in feet per second), the corresponding distance traveled by the orbiter can be found using the equation below;

The equation is:ds=∫v₁ᵛ₂dt Let's put in the values we have;v₁ = 200 mi/hr = 200 * 1.467 = 293.4 ft/s, v₂ = 35 mi/hr = 35 * 1.467 = 51.345 ft/s

∫ds= ∫v₁ᵛ₂ dt = ∫v₁ᵛ₂ (-dv/0.0003v²) = [-1/0.0003 ∫(1/v²)dv] from v₁ to v₂= [-1/0.0003 (-1/v)] from v₁ to v₂ = [1/0.0003 (1/v₁ - 1/v₂)]

The distance covered by the shuttle during the time that the chute is deployed is given by 1/0.0003 (1/v₁ - 1/v₂).∴ d = 1/0.0003 (1/293.4 - 1/51.345) = 1,728.05 feet. Therefore, the corresponding distance traveled by the orbiter is 1,728.05 feet.

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Answer:

the answer to this question is A globular cluster

As an astronaut meal planner, here is a menu for a day's worth of meals in space includes Breakfast, Lunch and Dinner.

Breakfast:

Scrambled Eggs with Vegetables

Special Packaging: Individual vacuum-sealed pouches

Preparation: The scrambled eggs with vegetables will be precooked and dehydrated. Astronauts will rehydrate the meal with hot water, stir, and allow it to sit for a few minutes before consuming. This ensures the eggs and vegetables rehydrate properly in the zero-gravity environment.

Lunch:

Teriyaki Chicken Stir-Fry with Rice

Special Packaging: Sealed pouches for each component (chicken, vegetables, rice, and sauce)

Preparation: The chicken, vegetables, and rice will be precooked and dehydrated separately. The teriyaki sauce will be in a separate pouch. Astronauts will rehydrate each component individually with hot water, then mix them together in a resealable pouch. After a few minutes, the meal will be ready to eat.

Dinner:

Grilled Salmon with Quinoa and Roasted Vegetables

Special Packaging: Vacuum-sealed pouches for each component

Preparation: The salmon will be cooked and then freeze-dried for preservation. The quinoa and roasted vegetables will be precooked and dehydrated separately. Astronauts will rehydrate the quinoa and vegetables with hot water, then warm up the salmon using a food warmer. The components will be combined on a tray and secured with fasteners to prevent them from floating away.

Modifications for space include using dehydration and freeze-drying techniques to remove water content from the food while preserving nutrients. Vacuum-sealed and sealed pouches are used to prevent spoilage and maintain freshness. Rehydration with hot water is necessary to restore the food's texture and taste.

Additionally, it's important to consider portion control and individual packaging to prevent cross-contamination and maintain food safety. The use of condiments and seasonings may be limited to avoid loose particles floating in the spacecraft.

By designing meals that are easy to prepare, consume, and clean up, astronauts can enjoy nutritious and satisfying meals while adapting to the unique challenges of the zero-gravity and non-refrigerated environment in space.

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Nuclear energy is is used practically for many energy requirements because the reactions are controlled to regulate energy output

Nuclear energy is the energy reaelesed during nuclear relations.

Nuclear energy is a clean form of energy which is available in enormous amounts.

Nuclear energy is is used practically for many energy requirements because the reactions are controlled to regulate energy output.

Therefore, the control of nuclear reactions make the use if nuclear energy possible.

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Answer: A or the reactions are controlled to regulate energy output.

Explanation: did it on edge!

Answer:

Explanation:

acceleration is the change i velocity with respect to time.

Acceleration = change in velocity/time take

Acceleration = final velocity - initial velocity/time taken

Given initial velocity = 15m/s

final velocity = 25m/s

time = 6sec

Substituting the given value into the formula above to get acceleration

acceleration = 25-15/6

acceleration = 10/6

acceleration = 1.67m/s²

Hence Mia acceleration is 1.67m/s²

In the photoelectric effect, the higher the frequency of the illuminating light on the metal surface, the greater the energy of the emitted electrons, not the greater their number.

The photoelectric effect refers to the phenomenon where electrons are emitted from a metal surface when it is illuminated by light or electromagnetic radiation. The energy of the incident photons plays a crucial role in determining the kinetic energy of the emitted electrons.

According to the photoelectric effect, if the frequency (or energy) of the incident light is below a certain threshold value (known as the "threshold frequency"), no electrons are emitted regardless of the intensity of the light. However, once the frequency of the incident light exceeds the threshold frequency, electrons are emitted, and their kinetic energy depends on the difference between the energy of the incident photons and the energy required to overcome the binding forces holding the electrons within the metal.

The energy of a photon is directly proportional to its frequency. Therefore, higher-frequency (higher-energy) photons carry more energy. When these high-frequency photons interact with the metal surface during the photoelectric effect, they can transfer more energy to the electrons, resulting in greater kinetic energy of the emitted electrons.

In summary, the higher the frequency (energy) of the illuminating light in the photoelectric effect, the greater the energy (kinetic energy) of the emitted electrons.

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Answer:  La velocidad inicial es 6m/s

Explanation:

Primero escribamos las ecuaciones de movimiento:

Sabemos que la aceleración es 8m/s^2.

a(t) = 8m/s^2.

Para obtener la velocidad, tenemos que integrar sobre el tiempo:

v(t) = (8m/s^2)*t + v0

donde v0 es la velocidad inicial.

Para la posición volvemos a integrar sobre el tiempo, y tenemos:

p(t) = (1/2)*(8m/s^2)*t^2 + v0*t + p0 = (4m/s^2)*t^2 + v0*t + p0  

Donde p0 es la posición inicial.

Nosotros sabemos que en el tercer segundo, el móvil recorre 26m

Esto significa que:

p(3s) - p(2s) = 26m = (4m/s^2)(3s^2 - 2s^2) + v0(3s - 2s) + p0 - p0

26m = (4m/s^2)*5s^2 + v0*1s

De aquí podemos despejar el valor de v0:

26m  = 20m + v0*1s

6m = v0*1s

v0 = 6m/s

Since the point of application of the force acting on a particle remains constant as it goes around a circular orbit after starting at rest, this indicates that the body is still in motion.

The angular acceleration vector's direction is parallel to the plane in which the rotation occurs. The angular acceleration vector is said to point away from the observer if the increase in angular velocity seems to the observer to be clockwise.

A uniform circular motion is one that has a constant angular velocity, or t. The velocity of a non-uniform circular motion varies over time and with the rate at which the angular velocity changes.

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Answer:

seismic

Explanation:

I'm not 100 percent sure but I hope this helps

Light rays first pass through the transparent layer called the cornea and then refracted again as they pass through the transparent lens.

How do light rays flow in the eyes?

The first factor in the journey of light via the eye is the objects being seen and how they produce, reflect, or change the light in various ways.

The visual cortex of the brain's occipital lobe serves as the destination of the light pathway, which starts with photoreceptors in the retina. Rod and cone cells are two different types of photoreceptors. When it comes to eyesight in low light and in peripheral vision, rods can be especially helpful.

The cornea is where most of the refraction occurs as light enters the eye's curved, transparent front surface. The natural or crystalline lens of the eye also distorts light rays. When an item passes in front of the eye, its rays pass through the transparent cornea and enter the eye.

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Answer:Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. When electrons are "lost" from an atom, the free movement of these electrons constitutes an electric current. Electricity is a basic part of nature and it is one of our most widely used forms of energy.

Explanation:

Answer:

Explanation:

When an object rolls without slipping down an inclined plane, the true statement(s) about static friction force are: It provides the torque to cause the angular acceleration and it goes against gravity to reduce the acceleration caused by gravity. The correct answer is B and E.

Friction is the force that opposes relative motion between surfaces in contact. It is also called a contact force because it operates between the surfaces in contact when they're in motion or when a force tries to move them relative to one another.

An inclined plane is a simple machine that consists of a sloping surface that connects a lower point to a higher point. It is one of the six classical simple machines that is used to reduce the effort needed to raise a weight to a certain height.

Rolling without slipping is a combination of translational motion (movement in a straight line) and rotational motion (movement around an axis) without any slipping occurring between the surfaces in contact. A wheel or any other circular object rolls without slipping when its forward motion is the same as its rotational motion.

Static friction is the force that keeps an object at rest or in a state of uniform motion on a surface when a force is applied on it. When two surfaces are in contact, static friction is the force required to overcome the sticking between them that resists motion.

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Answer:

(I will talk in my opinion only)

electronics do harm our mental health but they are also helpful ones like mobile both a boon and a curse

physical health is greatly affected and it's something no need to explain

social ( for me ) my only place to be social and talk people is brainly so for me mobile is very important

Answer:

Just a little bit. You should not be on electronics all the time. I know some people that are so addicted to there electronics that they won't even hang out with people. If you are at the point where you think about things other than school, friends, and family...you should think about getting off of your electronics and go play with a neighborhood friend outside, or have a sleepover! Your whole life should not count on your phone, iPad, or your laptop.

Explanation:

Hope this helps! No recorces included in this writing.

Both frequency and wavelength will change. We perceive an increase of frequency as the increased pitch that you described. As the frequency (pitch) increases, the wavelength becomes shorter according to the universal wave equation ( v=fλ ).

Answer:

Use IGG Games or get money.

Explanation:

Answer:

Go to Undertale.com and buy it

Explanation:

sorry i don't really know how to answer this

The magnitude of the magnetic field at the location of the charge due to the current-carrying wire is given as B = μI/2πr.

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.

The magnitude of the magnetic field at the location of the charge due to the current-carrying wire is calculated as follows;

B = μI/2πr

where;

Thus, the magnitude of the magnetic field at the location of the charge due to the current-carrying wire is given as B = μI/2πr.

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Answer:

Yes becuase the circuit is fryed like sum french fries so yes yes is the yes option yes okay, yes but no

Explanation:

If you were to insert additional resistors in series, the equivalent resistance increases. The correct option is c.

The resistances when connected in series has the equivalent resistance equal to the sum of all the individual resistances.

In the series circuit, the equivalent resistance is

Req= R₁ + R₂ + R₃

Suppose you had an electrical circuit and decided to change it into a new circuit.

The current through the circuit is the same for each resistor in a series circuit and is equal to the applied voltage divided by the equivalent resistance.

Yes, the equivalent resistance of the new circuit compare to the old one.

If you were to insert additional resistors in series, the equivalent resistance increases.

Thus, the correct option is c.

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The magnitude of the linear impulse experienced by the passenger during this time is 421.2 kg·m/s and the average force experienced by the passenger is approximately 5.44 × 10^2 N.

(a) To calculate the magnitude of the linear impulse experienced by the passenger, we can use the equation:

Impulse = mass × change in velocity

Given:
Mass of the passenger (m) = 70.2 kg
Change in velocity (Δv) = 6.00 m/s - 0 m/s = 6.00 m/s

Substituting the values into the equation, we get:

Impulse = 70.2 kg × 6.00 m/s = 421.2 kg·m/s

Therefore, the magnitude of the linear impulse experienced by the passenger during this time is 421.2 kg·m/s.

(b) To find the average force experienced by the passenger, we can use the equation:

Average force = Impulse ÷ time

Given:
Impulse (I) = 421.2 kg·m/s
Time (t) = 0.774 s

Substituting the values into the equation, we get:

Average force = 421.2 kg·m/s ÷ 0.774 s = 544.0 N (rounded to three significant figures)

Therefore, the average force experienced by the passenger is approximately 5.44 × 10^2 N.

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By deflecting most of the solar wind, magnetosphere and plasmosphere protect Earth.

New magnetic structures known as magnetospheres were found throughout the space era by satellite-borne devices that allowed for physical measurements in remote areas that were previously inaccessible. Earth's magnetosphere was the first one to be found. An additional discovery made shortly after that revealed that ionized gases emitted from the Sun, stars, and other celestial bodies with high temperatures instead of space being empty as previously believed. The presence of magnetospheres in space was then made clear.

Because it is always blowing, the solar wind differs from winds in the lower atmosphere. Every planet engulfed in the solar coronal atmosphere is constantly interacting with it. Around magnetized planets, the electromagnetic (EM) interaction creates large-scale currents and magnetic cavities.

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The length of the rectangle is x ≈ 2.72 inches, to the nearest hundredth of an inch.

We can approach this problem using the Pythagorean theorem and some basic geometry.

We are given that the radius of the semicircle is 1.5 inches and the radius of the chamfering is 0.52 inches. Let's call the height of the rectangle h, the length of the rectangle x, and the thickness of the rectangle y. Then we have:

h + 1.5 + 0.52 = 1.3

Solving for h, we get:

h = 1.3 - 1.5 - 0.52 = -0.72

This doesn't make sense, since the height of the object should be positive. Therefore, there must be an error in the problem statement. Perhaps the height of the rectangle is actually y instead of h?

Assuming that the height of the rectangle is y, we have:

y + h + 1.5 + 0.52 = 1.3

Solving for h, we get:

h = 1.3 - y - 1.5 - 0.52

Now, let's use the Pythagorean theorem to find x. We can draw a right triangle with one leg equal to y and the other leg equal to x/2 + 1.5 + 0.52. The hypotenuse of the triangle is equal to the diameter of the semicircle, which is 3 inches. Therefore, we have:

y^2 + (x/2 + 1.5 + 0.52)^2 = 3^2

Simplifying this equation, we get:

y^2 + x^2/4 + x + 3.04y + 3.04 = 9

Multiplying both sides by 4, we get:

4y^2 + x^2 + 4x + 12.16y + 12.16 = 36

Simplifying again, we get:

x^2 + 4x + 4y^2 + 12.16y - 23.84 = 0

This is a quadratic equation in x. We can solve it using the quadratic formula:

x = (-4 ± sqrt(4^2 - 4(4y^2 + 12.16y - 23.84))) / 2

Simplifying, we get:

x = (-2 ± sqrt(16 - 4(4y^2 + 12.16y - 23.84))) / 2

x = (-2 ± sqrt(4y^2 + 12.16y - 7.84)) / 2

We want to find x to the nearest hundredth of inches. Let's plug in y = 0.35 and use a calculator to solve for x:

x = (-2 ± sqrt(4(0.35)^2 + 12.16(0.35) - 7.84)) / 2

x ≈ 2.72 or x ≈ -6.72

We reject the negative solution since x is a length, so it must be positive.

Therefore, the length of the rectangle is x ≈ 2.72 inches, to the nearest hundredth of an inch.

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