JA spring is used to launch na ball vertically into the air. The spring has a spring constant of 200 N/m and is compressed by 5cm. A ball of mass 10 g is placed just above the spring. Calculate: ) a)the energy stored in spring b)assumingthespringtransferallofitsenergytotheballthevelocityoftheballjustasitlaunches c)theheightreachedtheballassumingallthe EK isconvertedinto gpe
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Hydrogen and helium are formed due to big bang event whereas heavy elements are formed inside very hot environment.

The lightest elements i.e. hydrogen, helium, lithium etc were produced in the Big Bang event. According to the Big Bang theory, the temperatures in the early stage of universe were so high that leads to fusion reactions.

Light elements such as hydrogen and helium are formed during the big bang event while on the other hand, the iron molecules are made due to the fusion in the cores of stars. Many heavier elements like gallium and bromine need supernova condition for their formation.

So w can conclude that big bang event is responsible for the formation of  Hydrogen and helium whereas heavy elements are formed inside the supernova.

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Answer:

“The only true wisdom is in knowing you know nothing.” ― Socrates. Socrates had it right. Remain humble and appreciate the fact that you don't know everything. ... Thankfully, one's search for knowledge has no end as there is always something new to learn, giving one's life meaning and purpose.

Explanation:

Answer:

knowing wisdom cool

Explanation:

lol

Answer:

1 inch = 2.54 cm

12.9 inches= 12.9 x 2.54

= 32.766

= 32.8 cm (approximately)

Hope it helps...

Answer:

B) I just solved it

Explanation:

The unusually bright centers found in some galaxies are called "active galactic nuclei" (AGN).

These centers are characterized by their extreme brightness, which is due to the intense emission of energy across the electromagnetic spectrum, from radio waves to X-rays. The source of this energy is believed to be the accretion of mass onto supermassive black holes at the heart of these galaxies. When the matter surrounding the black hole is drawn towards it, it forms an accretion disk, which heats up due to friction and emits radiation. The emitted radiation can be so powerful that it outshines the entire galaxy, making the AGN easily observable from great distances. Examples of galaxies with active galactic nuclei include quasars, blazars, and Seyfert galaxies.

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Answer:

I believe it is vacuum of space

Explanation:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

The resultant voltage is calculated as 0.315 V

It is given that

E = 91.9 mj

Q = 2.91c

V = E/Q

=91.9 x \(10^{-3}\) / 2.91

= 31.58 mV

= 0.03158 V

Thus, the resultant voltage is calculated as 0.315 V

The difference in electric potential between two points, which is defined as the work required per unit of charge to move a test charge between the two points, is known as voltage, electric potential difference, electric pressure, or electric tension.

Voltage can also be described as the pressure from an electrical circuit's power source that helps to push the charged electrons (current) through a conducting loop, that enables them to do work such as illuminating a light.

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Answer:

It is 4,250 N

Explanation:

Mass of each boot:

\( = \frac{1}{2} \times 850 \\ \\ = 425 \: g\)

Weight:

\({ \sf{weight = mass \times acceleration}} \\ { \sf{weight = 425 \times 10}} \\ { \sf{weight = 4250 \: newtons}}\)

Answer:

about 5000 °F

Explanation:

Using the theories of electromagnetic radiations, we got that  4×\(10^{4}\)nm. is the  frequency of a photon of electromagnetic radiation for red light

We know very well that there is a relation between velocity of light, frequency and wavelength of light.

The relation is given by c=vλ where v is the frequency of light and λ is the wavelength of the light.

We are given for wavelength as 750nm or 750×\(10^{-9}\)m

We, know that speed of light is =3×\(10^{8}\)m/sec

So putting the values in formula, we get

=>3×\(10^{8}\)=v×750×  \(10^{-9}\)

=>v=(3/750)×\(10^{17}\)

=>v=0.004×\(10^{17}\)

=>v=4×\(10^{13}\)m or 4×\(10^{4}\)nm.

Hence, the frequency of a photon of electromagnetic radiation for red light(750nm) is 4×\(10^{4}\)nm.

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Answer:

For an object resting upon a non-accelerating surface, the normal force is equal to the ... Suppose that a person weighs 800 N and sits at rest upon a table. ... applying a downward force of 200 N. With the additional downward force of 200 N acting upon the person, the total upward force must be 1000 N.

Explanation:

A thermometer is a device that measures temperature. Clinical and non-clinical thermometers are two types of thermometers with different purposes.

A clinical thermometer is designed to measure the human body temperature. It usually has a range from 95°F to 110°F or 35°C to 43°C. Clinical thermometers have a narrow range of measurement and high sensitivity. They are typically made of glass and contain a liquid (usually mercury) that expands as temperature increases, causing the level of mercury to rise up the calibrated tube. These thermometers may have a bend in the tube called a kink to prevent the mercury from returning to the bulb after measurement.

On the other hand, non-clinical thermometers are designed for industrial or laboratory use. They measure a wider range of temperatures than clinical thermometers, ranging from -200°C to over 1000°C. Non-clinical thermometers can be made of various materials, such as glass, metal, or plastic. Some common types of non-clinical thermometers include bimetallic thermometers, digital thermometers, infrared thermometers, and thermocouples.

In summary, clinical thermometers are designed for measuring human body temperature and have a narrow range of measurements, while non-clinical thermometers are used for a wider range of temperature measurements in industrial or laboratory settings.

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If an object is traveling in a circle and it is far from the center of the circle, we can say that the object is experiencing a larger centripetal force than if it were closer to the center. This is because the centripetal force required to keep an object moving in a circular path is directly proportional to the distance of the object from the center of the circle.

Centripetal force is the force acting on an object in curvilinear motion directed towards the axis of rotation or centre of curvature.The unit of centripetal force is newton.The centripetal force is always directed perpendicular to the direction of the object’s displacement.Therefore, if the object is far from the center, it requires a larger force to maintain its circular motion.

So, If an object is traveling in a circle and it is far from the center of the circle, we can say that the object is experiencing a larger centripetal force than if it were closer to the center.

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We can confirm that the primary reason that killer whales cause deforestation of the seabed is due to a domino effect caused by one of their food sources.

Killer whales are carnivorous organisms. Among their prey are sea otters. This new source of food for killer whales began to cause a domino effect in that the decline in sea otter population caused the primary meal of the otters, that being sea urchins, to increase greatly in population. Given that the sea urchins feed on kelp, this contributes to the deforestation of the sea bed and the lack of kelp.

Therefore, we can confirm that killer whales cause deforestation of the seabed in an indirect manner by contributing to the increase in sea urchin populations that leads to deforestation of the seabed.

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Answer:

15 kg ball

Explanation:

Answer:

P = 2 pi (L / g)^1/2

Let 1 represent earth and 2 the moon

P2^2 / P1 ^2 = L2 g1 / (L1 g2)       dividing equations

L2 = (P2 / P1)^2 * g2 / g1 * L1

L2 = 1 * 1.62 / 9.80 * 1.9 = .314 m

Answer:

A) (1) and (2)

Explanation:

pls mark me brainliest

Answer: Riding a bike to the park

Explanation:

Answer:

0

Explanation:

Displacement is a vector from initial to final point. Because initial and final point are the same, so displacement is 0.

The required force to push the box straight up at a constant speed is zero.

The net force on the box is calculated by applying Newton's second law of motion as follows;

∑F = 0

F - Ff = ma

(at constant speed, acceleration is zero)

\(F- F_f = ma\\\\F - 0 = 0\\\\F = 0\)

Thus, the required force to push the box straight up at a constant speed is zero.

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In quantum mechanics, the wavefunction is a fundamental concept used to describe the behavior of particles at the microscopic level.

It is a mathematical function that contains all the information about a particle's position, momentum, and other observable properties. The wave function is denoted by the symbol Ψ and varies in space and time. It follows the Schrödinger wave equation, a key equation in quantum mechanics. When the potential energy of a system is not dependent on time, the time-independent Schrödinger equation is derived. It takes the form: HΨ = EΨ, where H is the Hamiltonian operator representing the total energy of the system, Ψ is the wavefunction, E is the energy of the particle, and it describes the stationary states of the system.

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To produce 180 more tanks starting from point "b" (420 tanks and 800 bushels of corn), the society would need to increase its corn production by 540 bushels.

In order to produce more tanks, the society needs to allocate additional resources to tank production. Let's assume that each tank requires 3 bushels of corn as raw material. Since the society wants to produce 180 more tanks, it would need an additional 180 tanks * 3 bushels per tank = 540 bushels of corn.

To meet this increased demand for corn, the society must increase its corn production. Starting from point "b" with 800 bushels of corn, they would need to produce an additional 540 bushels of corn to reach the required total of 1,340 bushels (800 + 540).

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Answer:

The torque applied to the smaller gear is 1200 Nm.

Explanation:

To find the torque applied to the smaller gear, we need to consider the relationship between torque and gear ratios.

The gear ratio between two gears is defined as the ratio of the number of teeth on the larger gear to the number of teeth on the smaller gear. In this case, we are given the radii of the larger and smaller gears.

The gear ratio (GR) can be calculated using the formula:

GR = Radius of Larger Gear / Radius of Smaller Gear

Let's calculate the gear ratio:

Radius of Larger Gear = 30 cm

Radius of Smaller Gear = 10 cm

GR = 30 cm / 10 cm = 3

The gear ratio is 3, which means that for every one revolution of the larger gear, the smaller gear will rotate three times.

Now, the torque is inversely proportional to the gear ratio. In other words, the torque applied to the smaller gear will be three times the torque applied to the larger gear.

Given that the torque applied to the larger gear is 400 Nm, the torque applied to the smaller gear can be calculated as:

Torque of Smaller Gear = Gear Ratio * Torque of Larger Gear

Torque of Smaller Gear = 3 * 400 Nm = 1200 Nm

Therefore, the torque applied to the smaller gear is 1200 Nm.

Answer:

The answer to your question is that A scientific hypothesis is the initial building block in the scientific method. Many describe it as an "educated guess," based on prior knowledge and observation

Explanation:

A hypothesis also includes an explanation of why the guess may be correct, according to National Science Teachers Association

Proving that, a hypothesis is based on a observations and scientific principals.

You r welcome and have a good day.

An example of a hypothesis based on observation and scientific principles is:

A hypothesis is an informed prediction or a tentative statement about what you think that would occur in a scientific experiment as a result of experience from observations accepted by scientific rules and law.

A hypothesis is a testable statement obtained from the research question but questions cannot be tested directly, it is the proposed relationship between the variables that are tested.

An example of a hypothesis is:

This specifies the direction of the hypothesis because one group is faster than the other.

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Answer:

A. ball sitting on the ground

Explanation:

brainliest plz

The work done on an object is the product of the force applied and resultant displacement. Here, the work done by lifting the 78 kg mass up to 6 m is 4586.4 J.

Work done on an object is the measure of how much of the force is used up to displace to a certain distance. Like force, work done is a vector quantity characterized by a magnitude and direction.

The work done on an object is the product of the force applied on it and resultant displacement.

given mass = 78 kg

normal force of the mass by its weight F = mg

F = 78 kg × 9.8 m/s² = 764.4 N.

Then,

work done W = F. ds

ds = 6 m

W = 764.4 N × 6 m = 4586. 4 N.

Therefore, the work done on the object is 4586.4 N.

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Answer:

Temperature is not a measure of the total kinetic energy of all the molecules in a substance. Two liters of boiling water have twice as much kinetic energy as one liter. The temperatures are the same because the average kinetic energy of molecules in each is the same.

The Moon has an elliptical orbit is the main reason that the gravitational attraction between Earth and the Moon changes each day.

Earth's gravity pulls the moon to the center of the earth, while the moon's gravitational force maintains the moon's position, resulting in a centrifugal force that makes the moon rotate on its axis and surround the earth so that it is not attracted to the earth's center of gravity or stays in its orbit.

The influence of the gravitational force of the earth and the moon is the tides of the sea. The moon's gravitational force pulls seawater toward the moon, affecting wave height and sea level. Because the moon revolves around the earth, there will be times when one side of the earth is closer to the moon. The part that is close to the moon will experience high tide, while the other part that is not close to the moon will experience low tide. The tides are also related to the phases of the moon. Usually, sea water will experience high tides during the full moon.

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The cycle of water or H₂O evaporating from lake and other bodies of water forming clouds and rain back to the surface of the earth happens in hydrosphere and stratosphere.

Hydrosphere is defined as water that is on the earth including surface of the planet such as ocean, lake and ice, underground source of water such as groundwater, as well as moisture in the air. The water, also known as H₂O gets heated up by the sun, evaporates into the air forming clouds happen in the atmosphere of the earth, specifically stratosphere, where most of the clouds are forming. After the clouds can no longer hold the accumulation of vaporization of the water, it will eventually get released back into the earth in the form of rain or snow.

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Answer:

I believe the answer would be kinetic energy to thermal energy.

Explanation:

Thermal energy is the heat of the brakes, and the kinetic energy would be when the car is in motion before stopping.

Correct answer is d. He described gravity as curved space time as opposed to force.

Einstein opposed Newton's law of motion saying, that if an object falls from a height, it doesn't experience any force. So, even though that path doesn’t look straight to us, the object experiences no force. This is what is meant by theory of relativity.

Einstein described thus concept in his theory of relativity, also called as a theory of gravity. The basic idea is that instead of being an invisible force that attracts objects to one another, gravity is a curving or warping of space. The more massive an object, the more it warps the space around it.

The Newton's first law of motion states an object remains in uniform motion unless acted by a force.

But einstein opposed this theory saying, that if an object falls from a height, it doesn't experience any force. Thus, einstein realized that massive things like Earth warp spacetime. A freefalling object then follows the straightest possible path in spacetime. So, even though that path doesn’t look straight to us, the object experiences no force. This is what is meant by theory of relativity.

Thus, the most famous equation in the world, E=mc², came into existence.

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