while exploring an ancient mayan tomb, you discover that the walls begin to move and are closing in on you. by exerting 400 n of force, you are able to keep a wall from coming closer. the work you are doing on the wall is

The initial height of a pendulum bob can be determined based on the speed of the bob at the bottom of the swing.

At the bottom of the swing, the pendulum bob possesses only kinetic energy. The relationship between kinetic energy (KE) and potential energy (PE) can be used to find the initial height. Since the bob is released from rest, it has no initial kinetic energy, so all its initial energy is potential energy. At the bottom of the swing, all the potential energy is converted to kinetic energy.

Equating the initial potential energy to the final kinetic energy, we can solve for the initial height. Using the equation PE = mgh, where m is the mass of the bob, g is the acceleration due to gravity, and h is the initial height, we can rearrange the equation to find h = KE/(mg). Substituting the given values, the initial height of the bob is approximately 1.99 meters.

To learn more about Pendulum bob : brainly.com/question/31113926

#SPJ11

Answer:

B. surface wave

Answer:

600 metres

Explanation:

1 minute = 60 seconds

1 second = 10 metres

60 seconds = 60 x 10 = 600

Athlete Mesert Defar runs 600 m in 1 minute. The speed of an object is equal to the distance traveled divided by time elapsed.

The speed of an object is equal to the distance traveled divided by time elapsed.

\(s = \dfrac dt \rm \ \ \ or\)

\(d = s \times t\)

Where,

\(d\) - distance

\(t\) - times = 1 minute = 60 sec

\(s\)  - speed = 10 m /s

Put the values in the formula,

\(d = 10 \times 60 \\\\ d = 600 \rm \ m\)

Therefore, Athlete Mesert Defar runs 600 m in 1 minute.

Learn more about Speed and Distance:

https://brainly.com/question/11528837

Answer:A

Explanation:

Mercury has the largest core relative to its total diameter of any planet in the solar system.

The planet's core is estimated to be about 2,200 kilometers (1,367 miles) in radius, making up about 85% of its total diameter. This large core is thought to be the result of a massive impact that stripped away much of the planet's outer layers early in its history.

The core is also much denser than the planet's mantle and crust, with a density of about 10.6 grams per cubic centimeter, which is nearly twice that of the mantle and crust. The core is believed to be largely composed of iron and nickel, and its high density suggests that it may contain a small amount of sulfur as well.

To learn more about core relative refer to:

brainly.com/question/14362959

#SPJ4

Answer:

See Explanation

Explanation:

m1(v1) + m2(v2)

Opposite turns the plus to subtraction.

80(8) - 120(4.0)

60 - 480 = 160 kg m/s to the right

An 80-kg football player travels to the right at 8 m/s and a 120-kg player on the opposite team travels to the left at 4.0 m/s. The total momentum is 160 kg m/s.

Momentum is a fundamental concept in physics that describes the amount of motion an object has. It is defined as the product of an object's mass and its velocity. Mathematically, momentum (p) is given by:

p = m × v

where p is the momentum, m is the object's mass, and v is its velocity.

The units of momentum are kilogram-meters per second (kg m/s) in the SI system of units. The direction of momentum is the same as the direction of the object's velocity.

Momentum is a conserved quantity, meaning that the total momentum of an isolated system (a system that does not interact with its surroundings) remains constant. This is known as the law of conservation of momentum, and it has many practical applications in physics and engineering. For example, it can be used to analyze collisions between objects, such as in sports or automobile accidents.

Here in the Question,

To find the total momentum of the two players, we first need to calculate the individual momentum of each player, and then add them up.

The momentum (p) of an object is given by the product of its mass (m) and velocity (v):

p = m × v

For the first player with a mass of 80 kg and a velocity of 8 m/s, the momentum is:

p1 = 80 kg × 8 m/s = 640 kg m/s

For the second player with a mass of 120 kg and a velocity of -4.0 m/s (negative because he is traveling in the opposite direction), the momentum is:

p2 = 120 kg × (-4.0 m/s) = -480 kg m/s

The negative sign in front of the momentum for the second player indicates that his momentum is in the opposite direction of the first player.

To find the total momentum, we add the individual momenta:

total momentum = p1 + p2

= 640 kg m/s - 480 kg m/s

= 160 kg m/s

Therefore, the total momentum of the two players is 160 kg m/s.

To learn about Kinetic Energy click:

https://brainly.com/question/26472013

#SPJ2

​

The magnitude of the total displacement is approximately 5056 meters.

To find the magnitude of the total displacement, we can break down the displacement into its horizontal and vertical components and then use the Pythagorean theorem to find the magnitude.

For the first segment, travelling due west with a speed of 23 m/s for 175 s, the displacement is purely horizontal and can be calculated as follows:

Displacement West = (Speed) x (Time) = (23 m/s) x  (175 s) = 4025 m due west

For the second segment, travelling due south at 12 m/s for 255 s, the displacement is purely vertical and can be calculated as follows:

Displacement South = (Speed) x (Time) = (12 m/s) x (255 s) = 3060 m due south

To find the total displacement, we can use the Pythagorean theorem:

Magnitude of Displacement = √((Displacement West)² + (Displacement South)²)

The magnitude of Displacement  = √((4025 m)² + (3060 m)²)

The magnitude of Displacement  ≈ √(16,200,625 m² + 9,363,600 m²)

The magnitude of Displacement  ≈ √25,564,225 m²

The magnitude of Displacement  ≈ 5056 m

Therefore, the magnitude of the total displacement is approximately 5056 meters.

To know more about displacement follow

https://brainly.com/question/31791750

#SPJ4

Answer:

It transfers energy parallel to the direction of wave motion. A transverse wave..

Explanation:

Answer:

The answer is a Wave Motion

Explanation:

A longitudinal wave is a type of wave that transfers energy is called," Wave Motion".

Hope you have a great day :)

Answer:

don't wanna pull anything

Explanation:

A good warm-up before a workout dilates your blood vessels, ensuring that your muscles are well supplied with oxygen. It also raises your muscles' temperature for optimal flexibility and efficiency. By slowly raising your heart rate, the warm-up also helps minimize stress on your heart.

Answer:

Here you go!

Explanation:

A good warm-up before a workout dilates your blood vessels, ensuring that your muscles are well supplied with oxygen. It also raises your muscles' temperature for optimal flexibility and efficiency. By slowly raising your heart rate, the warm-up also helps minimize stress on your heart. “Stretching allows for greater range of motion and eases the stress on the joints and tendons, which could potentially prevent injury. Warming up, such as low-heart rate cardio, prepares the circulatory and respiratory system for the upcoming ‘age- and type-appropriate target heart rate’ exercising, whether it’s endurance or sprint type of activities.” The cool-down is just as critical.  It keeps the blood flowing throughout the body. Stopping suddenly can cause light-headedness because your heart rate and blood pressure drop rapidly. Before you exercise, think about warming up your muscles like you would warm up your car. It increases the temperature and flexibility of your muscles, and helps you be more efficient and safer during your workout.  A warm-up before moderate- or vigorous-intensity aerobic activity allows a gradual increase in heart rate and breathing at the start of the activity.

Tips:

*Warm up for 5 to 10 minutes. The more intense the activity, the longer the warm-up.

*Do whatever activity you plan on doing (running, walking, cycling, etc.) at a slower pace (jog, walk slowly).

*Use your entire body. For many people, walking on a treadmill and doing some modified bent-knee push-ups will suffice.

volume of cube is 21.952 cubic metre

Volume = a3, where an is the length of the cube's sides or edges, is the formula for the cube's volume.

Height =Breadth =Length equals a. As a result, an is the length of each cube edge. The volume of cube formula is therefore ax ax a = a3. The number derived using the cube formula is the ideal cube number, it should be emphasized.

Volume of cube = ( cube of side ) ³

volume of cube = (2.8)³

volume of cube = 2.8 x 2.8 x 2.8

volume of cube = 21.952 cubic metre

volume of cube is 21.952 cubic metre

To know more about volume of cube visit :

https://brainly.com/question/11168779

#SPJ4

Answer:

 total energy is 14.12kj

energy at 85% is 12kJ

Explanation:

The statement 'research indicates that genetics does not influence levels of aggression' is False.

Behavioral genetics is a branch of the genetics field aimed at understanding behavioral human patterns.

In conclusion, the statement 'research indicates that genetics does not influence levels of aggression' is False.

Learn more about Behavioral genetics here:

https://brainly.com/question/25883628

#SPJ4

Answer:

The sand absorbed more heat than the soil.

Explanation:

your welcome

A 200 watt to decibels is option (b) 53 dBm.

To convert 200 watts to decibels referenced to 1 milliwatt, we can use the formula:

dB = 10 * log10(P/Pref)

where P is the power being measured (in this case, 200 watts) and Pref is the reference power (1 milliwatt).

First, we need to convert 200 watts to milliwatts. Since 1 watt is equal to 1000 milliwatts, we have:

200 watts = 200 * 1000 = 200,000 milliwatts.

Now we can calculate the decibel value:

dB = 10 * log10(200,000/1)

dB = 10 * log10(200,000)

Using a calculator, the result is approximately 53 dB.

The decibel (dB) is a logarithmic unit used to express the ratio of two power levels. In this case, we are comparing the power of 200 watts to the reference power of 1 milliwatt. By converting the power to decibels, we can more easily express and compare power levels on a logarithmic scale. In telecommunications and electronics, dBm is often used, which is a decibel measurement referenced to 1 milliwatt. In this context, 53 dBm indicates that the power of 200 watts is 53 decibels higher than 1 milliwatt.

Therefore, the answer is option (b) 53 dBm.

To know more about decibels click on below link :

https://brainly.com/question/1851849#

#SPJ11

When a 9-volt battery is connected across a light bulb, the electrical energy supplied by the battery is dissipated by the light bulb in the form of light and heat.

As the battery provides a potential difference across the circuit, the electric current flows through the filament of the light bulb. The filament is usually made of tungsten and it has high resistance, which causes it to heat up rapidly. The high temperature of the filament causes it to emit light, which is the main purpose of the light bulb.

However, some of the electrical energy is also converted into heat energy due to the resistance of the filament. This heat energy is radiated from the filament and also heats up the surrounding air. Therefore, the electrical energy supplied by the battery is dissipated by the light bulb in the form of light and heat energy.

To learn more about electrical energy click here

brainly.com/question/18739636

#SPJ11

Answer:

The methodology employed by Galileo contributed to the development of Physics by find moons of Jupiter. (I think)

sorry if it's wrong

Answer:

yes

Explanation:

Answer:

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

We have

distance = 5 × 3

We have the final answer as

Hope this helps you

Newton's Second Law of Motion states that the net force acting on an object is directly proportional to its acceleration. The proportionality constant, which is the object's mass, gives the equation ma = f (force equals mass times acceleration). This means that if a force is applied to an object with a certain mass, it will accelerate proportionally to the magnitude of the force.

Applying Newton's Second Law of Motion allows us to determine the force required to move an object of a certain mass a certain distance. We can also use it to calculate the acceleration of an object given its mass and the force acting on it. The second law states that the acceleration of an object is proportional to the force applied to it and inversely proportional to its mass. If the mass of the object remains constant, the acceleration produced is directly proportional to the force applied.

The second law also tells us that if a net force is acting on an object, it will accelerate in the direction of that force. This law can be used to explain the motion of objects in both linear and rotational motion. For example, when a bat hits a ball, the force of the bat on the ball causes it to accelerate, and the ball moves in the direction of that force. In summary, applying Newton's Second Law of Motion is a powerful tool for understanding the motion of objects and how they respond to forces acting on them.

to know more about Newton's Second Law of Motion visit:

https://brainly.com/question/15280051

#SPJ11

The angular momentum of the moon in its orbit around the earth is 28854.80* 10³⁰ kg.m²/s.

Given that,

Mass of the moon = 7.35 * 10²² kg

Radius of the orbit = 3.84 * 10⁸ m

Let us find the tangential velocity,

v = 2π* r/ T = (2π* 3.84 * 10⁸ )/ 2.36 * 10⁶ = 1022.35 m/s

T is transformed from days to seconds.

T = 27.3 * 86400 sec/ 1 day = 2.36 * 10⁶ s

The formula to find out angular momentum is, L = r *m* v

where, L is the angular momentum

r is the radius

m is the mass

v is the tangential velocity

L = 3.84 * 10⁸ * 7.35 * 10²² * 1022.35 = 28854.80* 10³⁰ kg.m²/s

Thus, the angular momentum of the moon in its orbit around the earth is 28854.80* 10³⁰ kg.m²/s.

To know more about angular momentum:

https://brainly.com/question/29159511

#SPJ4

The, IU {v} = d for all formulas v.

Here is the proof:

Suppose I is a set of propositional formulas and and are propositional formulas. If I U{0} ¬¬, then IU {v} = d.

Proof:

By the definition of entailment, I U{0} ¬¬ if and only if for every model M, if M satisfies all formulas in I, then M satisfies 0.

By the definition of the join of sets of formulas, IU {v} is the set of all formulas that are satisfied by every model that satisfies at least one formula in I and at least one formula in {v}.

Since I U{0} ¬¬, every model that satisfies all formulas in I must also satisfy 0.

Therefore, every model that satisfies at least one formula in I and at least one formula in {v} must also satisfy 0.

Therefore, IU {v} = d.

Learn more about formula with the given link,

https://brainly.com/question/29797709

#SPJ11

Answer:

answer is C

Explanation:

i just took the test

If the lens of our eyes were concave, we would not be able to see. We would be blind. This is because our eyes form a visual image on the same side of the lens at the object being viewed. Thus, a concave lens would result in the visual image focusing in front of the eye, not the retina inside the eye. This would mean that no signals would be sent to the brain, and vision would not be possible.

The X₅ impulsive flare has a total X-ray flux that is four times greater than the X1 long-duration flare.

The total X-ray flux for the X5 impulsive flare is:

5x10-4e⁻² W/m² * 3600 s/hour * 1 hour

= 5.4 J/m²

The total X-ray flux for the X1 long-duration flare is:

1x10⁻⁴ e-t/3 W/m² * 3600 s/hour * 1 hour

= 1.2 J/m²

As you can see, the X₅ impulsive flare has a total X-ray flux that is four times greater than the X1 long-duration flare. Therefore, the X impulsive flare is more likely to signal the beginning of a significant space weather event.

The reason for this is that the X₅ impulsive flare is a much more powerful event. It releases a much larger amount of energy in a much shorter period of time.

Learn more about impulsive on

https://brainly.com/question/3220593

#SPJ4

Answer:

moved farther apart

Explanation:

Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.

Additionally, the gravity of earth makes it possible for all physical objects to possess weight.

"Influence" between bodies is reduced as the bodies are moved farther apart based on Newton's law of universal gravitation.

Newton's law of universal gravitation states that the force of attraction (gravity) acting between the Earth and all physical objects is directly proportional to the Earth's mass, directly proportional to the physical object's mass and inversely proportional to the square of the distance separating the Earth's center and that physical object.

Jack and jill travel up a hill at a speed of 2 mi/h. They travel back down the hill at a speed of 4 mi/h. Their average speed for the entire trip is 8/3 mi/h

The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity

Let x be the distance of hill from one side.

⇒ Distance for round trip = 2x

Let t1 and t2 be the time taken by them when going and returning back respectively.

Total time taken for round trip = t1+ t2

we have,

speed = distance/ time

⇒time = distance/speed

so, t1 = x/2

t2= x/4

Average speed for round trip = total distance/ total time

\(average speed = \frac{2x}{ \frac{x}{2} + \frac{x}{4} } \)

= 8/3 mi/h

therefore, Their average speed for the entire trip is 8/3 mi/h.

learn more about average speed:

https://brainly.com/question/12322912

#SPJ4

Chemical reactions produces new substances and may be a synthesis, decomposition, combustion, replacement, or neutralization reaction.

Chemical reactions are changes which occurs in substances producing changes in the chemical properties of the substance.

The chemical reactions described are as follows:

Learn more about chemical reactions at: https://brainly.com/question/11231920

#SPJ1

The VRIO analysis will provide valuable insights into the internal factors that contribute to Mercedes Benz's competitive position in the automotive industry.

VRIO Analysis

In addition to the Strategy Diamond, the group will also conduct a VRIO analysis as part of their collective analysis of Mercedes Benz.

VRIO stands for Value, Rarity, Imitability, and Organization, and it is a framework used to evaluate the resources and capabilities of a company.

The VRIO analysis helps assess the competitive advantage of a company by examining whether its resources and capabilities are valuable, rare, difficult to imitate, and well-organized.

This analysis allows the group to identify the company's key strengths and weaknesses and understand how they contribute to its overall strategy.

By applying the VRIO framework to Mercedes Benz, the group can determine which aspects of the company's operations and resources provide a sustainable competitive advantage.

They will evaluate the value of Mercedes Benz's brand reputation, technological innovation, manufacturing capabilities, and distribution network.

They will also assess the rarity of these resources and capabilities and analyze whether competitors can easily imitate or replicate them. Lastly, the group will examine how well Mercedes Benz's organization and management effectively leverage these resources to create value for the company.

The VRIO analysis will provide valuable insights into the internal factors that contribute to Mercedes Benz's competitive position in the automotive industry.

It will help the group understand the unique aspects of the company's operations and guide their analysis of the broader strategic context outlined in the Strategy Diamond.

To know more about Mercedes refer here:

https://brainly.com/question/978174#

#SPJ11

Answer:

inertia is due to friction

The given statement "The horizontal velocity of a projectile changes by 9.8 m/s each second. A projectile with a horizontal component of motion will have a horizontal component of acceleration." is true.

The horizontal velocity of a projectile remains constant unless acted upon by an external force in the horizontal direction. In the absence of such forces, the horizontal velocity remains unchanged. Therefore, it does not change by 9.8 m/s each second.

However, the vertical velocity of a projectile does change due to the force of gravity acting vertically downward. The acceleration due to gravity is approximately 9.8 m/s² (ignoring air resistance).

This means that the vertical velocity of a projectile changes by 9.8 m/s every second. The vertical component of motion experiences a constant acceleration of 9.8 m/s².

On the other hand, the horizontal component of motion remains unaffected by gravity. It continues at a constant velocity in the absence of horizontal forces.

Therefore, while the vertical component of a projectile's motion experiences acceleration due to gravity, the horizontal component does not experience any acceleration.

So, the given statement is true.

Learn more about velocity:

https://brainly.com/question/80295

#SPJ11