Carbon-14, which is present in all living tissue, radioactively decays via a first-order process. A one-gram sample of wood taken from a living tree gives a rate for carbon-14 decay of 13. 6 counts per minute. If the half-life for carbon-14 is 5720 years, how old is a wood sample that gives a rate for carbon-14 decay of 11. 9 counts per minute?.

Answer:

A surface wave is a wave that travels on the crust of the earth after an earthquake; surface waves cause the destruction of an earthquake

Explanation:

A surface wave is a wave that travels on the crust of the earth after an earthquake; surface waves cause the destruction of an earthquake

Archimedes' principle is stated as "an object wholly or partially immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object."

It explains that the buoyant force acting on an object is equal to the weight of the fluid displaced by the object.In the experiment the object will float, and if the buoyant force is less than the force of gravity, the object will sink. The aim of this experiment was to calculate the density of an object using Archimedes' principle.

The object was suspended from a string, and its weight was measured. Then it was immersed in water, and the weight was measured again. The difference in weight of the object in air and water is equal to the weight of the displaced water. Therefore, the volume of the displaced water could be calculated, and hence the density of the object.

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Answer:

A fuse and circuit breaker both serve to protect an overloaded electrical circuit by interrupting the continuity, or the flow of electricity. ... Fuses tend to be quicker to interrupt the flow of power, but must be replaced after they melt, while circuit breakers can usually simply be reset.

Answer:

t = 0 1.697 seconds

Explanation:

Comment

This is a standard question where the time is the same for both the vertical distance the ball has to drop and the time it takes to go horizontally.

Formulas

dv = vi*t + 1/2 a t^2

dv is the vertical distance that the ball has to travel in a downward direction

dh = vh * t

Givens

a = 9.81

dv = 1.44

vi = 0

t = ?

dh = 2 m

t = same as above (but not given)

Solution

dv = 1/2 a * t^2

1.44 = 1/2 * 9.81 *t^2                 Multiply by 2

2*1.44 = 1/2 * 2 * t^2

2.88 = t^2

t = 1.697 seconds

Note that you do not have to use the horizontal information to get the time. You only have to realize that the ball has no vertical velocity to begin with.

The magnitude of vertical component of the velocity  of the plane when a ball is shot 58 m/s at 40 degree to the ground is 37.28 m/s.

Velocity can be defined as the rate of change of displacement, The S.I unit of velocity is m/s.

To calculate the magnitude of the vertical component of the velocity, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, The magnitude of the vertical component of the velocity is 37.28 m/s.

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(i) Switch k1 is closed:

The current passing through the circuit is:  0.25 amps

R_total = R1 + R2 = 3 + 5 = 8 ohms

The current passing through the circuit is:

i = V / R_total = 2 / 8 = 0.25 amps

(ii) Switches k1 and k2 are closed:

The current passing through the circuit is: 1.07 amps

1/R_total = 1/R1 + 1/(R2 + R3) = 1/3 + 1/(5 + 0) = 8/15

R_total = 15/8 ohms

The current passing through the circuit is:

i = V / R_total = 2 / (15/8) = 1.07 amps

(iii) Switch k1 is open and k2 is closed:

The current passing through the circuit is: 1.07 amps

1/R_total = 1/R2 + 1/(R1 + R3) = 1/5 + 1/(3 + 0) = 1/5 + 1/3 = 8/15

R_total = 15/8 ohms

The current passing through the circuit is:

i = V / R_total = 2 / (15/8) = 1.07 amps

So the current passing through the circuit depends on which switches are closed, and can range from 0.25 amps to 1.07 amps.

What is current?

Crrent refers to the flow of electric charge through a conductor, such as a wire. It is measured in amperes (A) and is defined as the rate at which electric charge flows past a given point in a circuit. current is caused by the movement of charged particles, such as electrons or ions, through a conductor.

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Answer:

D

Explanation:

because it is.

Answer:

velocity is vector Quantity

Answer:

0.75kg into gram = 0.75 * 1000 = 750g

potential energy = mgh

potential energy = 750 * 10 * 0.35

potential energy = 2625 joules

Answer:

analysis the force is zero

Explanation:

Let's apply Newton's second law

         F = m a

In this equation we see that the force is directly related to the acceleration, as they indicate that the rocket is far from any planet or star has no force applied to it, therefore they also relate it to zero.

Change we can analyze the exercise with Newton's first law, which indicates that an object maintains its constant speed in a straight line has no forces applied to it.

In either analysis the force is zero

When the upper half of a converging lens is covered by an opaque screen, only the lower half of the image will be visible on the screen.

This is because a converging lens refracts light rays that pass through it, causing them to converge at a focal point.

When the upper half of the lens is covered, only the lower half of the light rays can pass through the lens and converge at the focal point. As a result, only the lower half of the image will be visible on the screen.

The intensity of the image will not be affected by covering the upper half of the lens. The intensity of the image is determined by the amount of light that reaches the screen, which is not affected by covering part of the lens.

However, the overall brightness of the image may be affected if the amount of light entering the lens is reduced by the opaque screen.

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Consider the two points A(-4, -1) and B(2, 7) in the xy-plane. Distances are given in centimeters. the magnitude of the moment of the 75 N force about the origin is 150 N.

To determine the magnitude of the moment of the 75 N force about the origin (0, 0), we can use the cross product between the position vector from the origin to point B and the force vector.

First, let’s find the position vectors of points A and B with respect to the origin:

Vector OA = (x₁, y₁) = (-4, -1)

Vector OB = (x₂, y₂) = (2, 7)

Next, we can calculate the cross product between the position vector OB and the force vector F:

Moment = |OB × F|

      = |(x₂, y₂) × (0, 0, F)|

      = |(0, 0, (x₂ * F) – (y₂ * 0))|

      = |(0, 0, 2 * F)|

      = 2F

Substituting the given force magnitude of 75 N:

Moment = 2F

      = 2 * 75 N

      = 150 N

Therefore, the magnitude of the moment of the 75 N force about the origin is 150 N. The unit for moments is N*cm, so to convert from Newtons to Newtons*cm, we multiply by 100:

Magnitude of the moment = 150 N * 100 cm

                     = 15,000 N*cm

                     = 15,000 cm

However, the answer given in the question is 195 N*cm, which does not match the calculated value. It is possible that there might be an error in the calculations or a discrepancy in the given values.

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Explanation:

0.023, 1.0000004, 1.100

No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

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circulation of blood between the heart and lungs, then to the heart.

Lungs.bronchi, or bronchial tubes.Bronchioles.an air sac (alveoli)

In the lung, the trachea splits into two main bronchi, which then branch into more tertiary and secondary bronchi and lastly into bronchioles.

The three lobes that make up the right lung are indeed the right upper lobe (RUL), right middle lobe (RML), & right lower lobe (RLL) (RLL).Left upper lobe (LUL) & left lower lobe (LLL) make up the left lung's two lobes (LLL)

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The peak of the Earth's emission is 10 microns, while the sun's peak is 0.5 micron. Therefore, the correct answer is C. 10 microns.

Micron is a unit of measure equivalent to one millionth of a meter or one thousandth of a millimeter. Microns are usually used to measure very small things, such as dust, bacteria, or airborne particles. One micron is equal to 0.001 millimeter or 0.000001 meter.

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The magnitude of the rod's angular momentum is 619.91 Kgm²/sec.

Angular momentum is really significant in physics because it is a conserved quantity, the total angular momentum of a closed system remains constant. Both the direction and magnitude of angular momentum are conserved.

Given the following;

r is the radius of the rod=3.15 m

l is the length of rod=3.15 m

ω is the angular velocity=4.25 rad/s

m is the mass=14.7 kg

The angular momentum, L is given by;

L=m*r^2*ω

L=14.7*(3.15)^2*4.25

L=145.8608*4.25

L=619.91 Kgm²/sec

Hence the magnitude of the rod's angular momentum is 619.91 Kgm²/sec.

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Aswer:

False, the values ​​of the distance traveled and the displacement only coincide when the trayectorie is a straight line. Otherwise, the distance will always be greater than the offset.

Although these terms are used synonymously in other cases, they are totally different. Since the distance that a mobile travels is the equivalent of the length of its trajectory. Whereas, the displacement will be a vector magnitude.

xXCherryCakeXx.

Answer:

(I UNDERLINED AND MADE ITALIC THE MOST IMPORTANT INFORMATION) A vocation is an occupation to which a person is especially drawn or for which they are suited, trained, or qualified. Though now often used in non-Latin vocātiō 'a call, summons')religious contexts, the meanings of the term originated in Christianity.  (from

Explanation:

A call, summons, or impulsion to perform a certain function or enter a certain career, esp. a religious one. Vocation is defined as a call to do something, especially regarding religious work. The woman's desire to become a nun is an example of vocation. a strong impulse or inclination to follow a particular activity or career. a divine call to God's service or to the Christian life. a function or station in life to which one is called by God: the religious vocation; the vocation of marriage. There are many different types of vocations in today's society. The three significant vocations are, single life, married life, and religious life. Single life is one of the three types of vocation. Definition of Vocation and Career: Vocation is what you strive to do in your life. It is the career you want to be in. Career, on the other hand, is a series of jobs, even change of professions, in a lifetime of an individual. Vocation is literally your "calling", what you are good for or destined for. It usually is a property/talent/predisposition of your person. A mission, in contrast, is a particular task given to you. Even if you are on "a mission from God", there may be retirement from it eventually.

A hurricane is a big rotating storm system that forms over warm ocean waters and often moves toward the western coast of the United States.

A tropical storm is a hurricane in the northern Pacific Ocean or the Atlantic Ocean.

A hurricane is a big rotating storm system that forms over warm ocean waters and often moves toward the western coast of the United States. Hurricanes are either classified as tropical storms or hurricanes, depending on the greatest sustained wind speeds. Tropical storms have winds between 39 and 73 mph, whereas hurricanes have winds of 74 mph or greater.

When a hurricane makes landfall, storm surges, powerful winds, and copious amounts of rain can cause flooding. Storm surge refers to the rise in sea level that occurs as a cyclone approaches shore.

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The Taylorsville Volunteer Organization participating in the community is the subject of a key motion.

The motion of an object is the change in its position over time. It can be measured in speed, velocity, and acceleration. Speed is how fast an object is moving, velocity is speed in a particular direction, and acceleration is the rate of change of velocity. Motion can be linear, circular, or oscillatory. Linear motion is the movement of an object in a straight line, circular motion is the movement of an object in a circle, and oscillatory motion is the movement of an object back and forth. Motion can also be described in terms of forces like gravity, friction, and momentum.

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Answer:

4,050

Explanation:

I did the math.

Answer:

its 4,050

Explanation:

i just took the test 100%

Answer:

548800J

Explanation:

Given parameters:

Mass of roller coaster  = 800kg

Height of hill  = 70m

Unknown:

Change in potential energy  = ?

Solution:

The change in potential energy is the difference between the potential energy at the bottom and at the top.

Potential energy at the bottom is 0J

  So;

      Change in potential energy  = mgh - 0

m is the mass, g is the acceleration, h is the height

  Change in potential energy  = 800 x 9.8 x 70  = 548800J

mass = 2.76 g

volume = 25.5 mL

density of the fluid = 2.5 g/mL

R. D = Density of fluid

Density of water

Density of water = 1g/mL

R. D = 2.5/1

R. D = 2.5

Answer:

Explanation:

When an earthquake causes vertical movement of the sea floor displacing an enormous amount of water, a tsunami can form on the ocean floor.

Tsunamis are large waves that are generated by undersea earthquakes, landslides, or volcanic eruptions. The vertical displacement of the sea floor during an earthquake can cause a massive wave to form and travel across the ocean, often with devastating consequences for coastal communities.

Tsunamis can travel at high speeds and can cause widespread destruction when they hit land. It is important to have early warning systems and evacuation plans in place to minimize the impact of these natural disasters.

Answer:

Asteroids and comets have a few things in common. They are both celestial bodies orbiting our Sun, and they both can have unusual orbits, sometimes straying close to Earth or the other planets. They are both “leftovers” — made from materials from the formation of our Solar System 4.5 billion years ago. But there are a few notable differences between these two objects, as well. The biggest difference between comets and asteroids, however, is what they are made of.

While asteroids consist of metals and rocky material, comets are made up of ice, dust, rocky materials and organic compounds. When comets get closer to the Sun, they lose material with each orbit because some of their ice melts and vaporizes. Asteroids typically remain solid, even when near the Sun.

Right now, the majority of asteroids reside in the asteroid belt, a region between the orbits of Mars and Jupiter which may hold millions of space rocks of varying sizes. On the other hand, the majority of comets are in the farthest reaches of our Solar System: either 1. in the Kuiper Belt — a region just outside the orbit of the dwarf planet Pluto that may have millions of icy comets (as well as many icy dwarf planets like Pluto and Eris); or 2. the Oort Cloud, a region where trillions of comets may circle the Sun at huge distances of up to 20 trillion kilometers (13 trillion miles).

Answer:

they are both leftovers materials

Explanation:

think about how the solar system is made the comets and asteroids are both rocks and remains of the solar system

Answer:

The magnification of the lens is 21

Explanation:

Please see full answer in the attached image since the system kept on refusing to accept my typed answer complaining of bad use of words or presence of a link.

The magnification of the lens is m = 21

Answer:

its 21 for Acellus

Explanation:

Answer:

2 м/с

Explanation:

Скорость надо разделить на время, за которое она достигается (10/5=2)