what is the foemula for this problem

Answer:

No photo or graph is there

Explanation:

The horizontal force superman apply to the boulder is F = 2142.9 N.

The boulder has a weight of

W = 1400 N

The weight of an object is the product between its mass m and the gravitational acceleration g:

W = mg

Rearrange the equation, we can calculate the mass of the boulder:

m = W / g

m =  1400 N / 9.8 m/s

m = 142.86 kg

As we know that Superman applies a horizontal force to this object, and as a result, the acceleration of the boulder is

a = 15 m/s²

We can find the force applied by using Newton's second law of motion:

F = ma

As, now we have m that is 142.86 kg and a is 15 m/s²

So, putting these values in formula we have,

F = 142.86 kg x 15 m/s²

F = 2,142.9 N

Hence, the horizontal force superman apply to the boulder is F = 2142.9 N.

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For zero work ,either force acts perpendicular to displacement so emily pulls upward on her briefcase to support it as she stands at the bus stop, waiting for the bus to arrive is Zero work.

When force and displacement are perpendicular to one another or when neither of them is present, the work performed is referred to as zero work. For instance, when we hold an object and walk, the force acts downward while the displacement acts forward. A straightforward illustration of zero work is when you stand still while holding a bag in your hands. In order to counteract the gravitational force acting on the bag, you exert a force with your hands, but since the bag is not moved, neither gravity nor your force have any effect. When we carry an object while walking, displacement always moves the object forward rather than downward.

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Answer:

b

Explanation:

Answer:

h=mv^2/mg

h=v^2/g

Explanation:

please make me as brainlest

Answer:

Answer is in attached photo.

Explanation:

The solution is in the attached photo, do take note for this question, we are making h the subject, and in equations, we can cancel like terms.

Answer:

you to

Explanation:

sleep well and long and thank you for the points

Answer:

All planets have an elliptical orbit

all planets have roughly the same SHAPE of orbit

Answer:

Explanation:

For every action (or force), there is an equal and opposite action (or force).

Answer:

In order to calculate the required force ratio for the vulcanizer to raise the vehicle with the screw jack, we first need to determine the required torque for the screw jack to lift the load. The torque required is equal to the force applied to the end of the arm of the screw jack multiplied by the length of the arm.

If the pitch of the screw is 0.45 cm, and the arm is 60 cm long, the required force to lift a load with the screw jack can be calculated using the following formula:

Force = Torque / Arm length

Plugging in the values we know, we get:

Force = (Torque / 60 cm) / (0.45 cm/rev)

Where "rev" refers to one revolution of the screw.

To raise the load with an efficiency of 75/pi%, we need to input a force that is sufficient to overcome the load and the friction in the system. The required input force can be calculated using the following formula:

Input Force = (Required Force / Efficiency) * (100 / pi)

Plugging in the values we know, we get:

Input Force = (Required Force / (75/pi)) * (100 / pi)

The input force ratio is the ratio of the input force to the required force. To get the required input force ratio, we can divide the input force by the required force:

Input Force Ratio = Input Force / Required Force

I hope this helps! Let me know if you have any other questions.

Answer:

3 significant figures

Explanation:

here  zero is counted as one of the significant figures since it lies next to an integer.

hence the number has 3 sfg

Answer: There are many problems associated with digitized DNA storage.

Explanation:

The cost of encoding the DNA data is high and lot of working efficiency is required for the same. The encoding process requires a considerable amount of time and encoding is slow. It takes about 400 bytes per second. This is done in a silicon memory chip. The process is millions of times slower.

Cultural phases can overlap in different regions, and regional variations and local cultural developments may also exist within each period.

The Upper Paleolithic is a period of prehistoric human history that occurred approximately between 50,000 and 10,000 years ago. During this time, various material cultures emerged and evolved. While the specific chronology can vary depending on the region, here is a general chronological order of the material cultures of the Upper Paleolithic:

Initial Upper Paleolithic (50,000 - 40,000 years ago): This phase marks the transition from the Middle Paleolithic to the Upper Paleolithic. It is characterized by the emergence of anatomically modern humans (Homo sapiens) and the development of more sophisticated stone tools, including blades and bladelets.Aurignacian (40,000 - 28,000 years ago): The Aurignacian culture iassociated with the earliest Homo sapiens in Europe. It is characterized by the production of finely crafted tools made from bone, antler, and ivory. Artistic expression, such as cave art and personal adornments like beads, also emerged during this period.

Gravettian (28,000 - 22,000 years ago): The Gravettian culture is known for its innovative stone tools, including the widespread use of microliths. They created highly efficient hunting implements, such as harpoons and spear-throwers. Sculptures and engravings on bone and ivory are common in Gravettian archaeological sites.Solutrean (22,000 - 17,000 years ago): The Solutrean culture is characterized by the development of sophisticated stone tools, including finely crafted spear points with a distinctive leaf shape. They were skilled hunters, and their artifacts show evidence of pressure flaking and retouching techniques.

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Answer:

C.

Explanation:

the earth has a high greavitational pull

Answer: C the person and earth

Explanation: I just answered it on a p e x

One of the most significant observations that has provided the most accurate values of the age, dark matter, dark energy content, and the average density of the universe is the cosmic microwave background (CMB) radiation.

The CMB radiation is the afterglow of the Big Bang and is a remnant of the hot, dense early universe. The CMB radiation provides a snapshot of the universe when it was only 380,000 years old, and its properties can be analyzed to infer the universe's current state.

By analyzing the CMB radiation, cosmologists have determined that the universe is approximately 13.8 billion years old. Furthermore, they have found that dark matter constitutes around 27% of the universe's total energy density, and dark energy constitutes around 68%.

The CMB radiation has also provided insight into the universe's average density. By measuring tiny fluctuations in the CMB, scientists have determined that the average density of the universe is very close to the critical density required for a flat universe. This result is consistent with the inflationary Big Bang model and the concept of a flat universe.

Therefore, the observation of the cosmic microwave background radiation has been crucial in providing some of the most accurate values of the age, dark matter, and dark energy content, and the average density of the universe.

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Answer:

hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9

There are several factors that can lead to a force that pushes people out of their native lands and pulls them toward a new place.

One of the most common reasons is economic pressure, which can be caused by poverty, unemployment, and lack of opportunities in their home country. Political instability, war, and conflict can also force people to flee their homes and seek safety in another country. Climate change and natural disasters can also lead to displacement, as people are forced to leave their homes due to environmental factors such as drought, floods, and hurricanes. Another force that can push people to leave their homes is social and cultural factors such as discrimination, persecution, and human rights violations. On the other hand, pull factors such as better economic opportunities, political stability, and better living conditions in another country can also attract people to move. Ultimately, the force that pushes people out of their native lands and pulls them toward a new place is a complex combination of social, economic, political, and environmental factors.

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Answer:

b

Explanation:

the kidney eliminates waste from the blood hence no kidney will result in accumulation of waste

Answer:

The Greenhouse Gas Equivalencies calculator allows you to convert emissions or energy data to the equivalent amount of carbon dioxide (CO2) emissions from using that amount. The calculator helps you translate abstract measurements into concrete terms you can understand, such as the annual emissions from cars, households, or power plants. This calculator may be useful in communicating your greenhouse gas reduction strategy, reduction targets, or other initiatives aimed at reducing greenhouse gas emissions.

Explanation:

The Greenhouse Gas Equivalencies calculator allows you to convert emissions or energy data to the equivalent amount of carbon dioxide (CO2) emissions from using that amount. The calculator helps you translate abstract measurements into concrete terms you can understand, such as the annual emissions from cars, households, or power plants. This calculator may be useful in communicating your greenhouse gas reduction strategy, reduction targets, or other initiatives aimed at reducing greenhouse gas emissions.

Answer:

A concave mirror is used.

Explanation:

start a fire using a mirror to focus sunlight.

A concave mirror is used as a light concentrator.

When the object is placed at the infinity, the image is formed at focus.

So, the light is focused at the focus and thus the fire is started.

The total distance traveled by the super ball can be represented as a sum of an infinite geometric series.

When the super ball is thrown straight up into the air, it reaches a maximum height of 20 feet. Upon reaching the highest point, it starts descending and rebounds to 75% of its previous height. This means that after the first bounce, the ball reaches a height of 20 * 0.75 = 15 feet. On the subsequent bounces, the ball continues to rebound to 75% of its previous height.

To calculate the total distance traveled by the ball, we need to consider both the ascending and descending portions. The ascending portion is the initial throw, which is 20 feet. The descending portions are the bounces, which continue until the ball's height becomes negligible.

Each bounce consists of an ascending and descending portion. The ascending portion is equal to the previous height (after rebounding), and the descending portion is also equal to the previous height. Therefore, the total distance traveled during each bounce is twice the previous height.

As the ball rebounds to 75% of its previous height, we can see that the height of each bounce forms a geometric sequence with a common ratio of 0.75. To find the total distance traveled, we need to sum up the heights of all the bounces, which can be done using the formula for the sum of a geometric series.

In this case, the first term (a) is 15 feet (the height after the first bounce), and the common ratio (r) is 0.75. We can use the formula for the sum of a geometric series:

Total distance = a / (1 - r)

Substituting the values, we have:

Total distance = 15 / (1 - 0.75)

Simplifying, we get:

Total distance = 15 / 0.25 = 60 feet

Therefore, the total distance traveled by the super ball, including the initial throw and all subsequent bounces, is 60 feet.

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Answer:

Ionic bonds are formed between cation and anions . A cation is formed when a metal ion loses valence electron while an anion is formed when a non-metal gains a valence electron.

Answer:firt answer corrcect who answerd

Explanation:

Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

Inertia is the resistance of an object to any change in motion. Inertia is proportional the mass of the object: in fact, as we experience in common situations, the larger the mass of an object, the more difficult it is to change its motion.

Inertia of an object is its inherited property. It is the measure of its mass. It is clear that the inertia of an object depends directly on its mass. Mass of an object is the amount of matter contained in it. It is same at every location.

Given that in the case four thing Biscuit, Feather, Elephant, a 1st grader out of which Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

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true

Explanation:

this is because melting point and boiling point decreases down the group because they are held together by attractions between positive nuclei and delocalised electrons

Answer:

v = 27.5 m/s

Explanation:

p = m × v

6,875 = 250 × v

250v = 6,875

v = 6,875/250

v = 27.5 m/s

Answer:

v_f = 3 m/s

Explanation:

From work energy theorem;

W = K_f - K_i

Where;

K_f is final kinetic energy

K_i is initial kinetic energy

W is work done

K_f = ½mv_f²

K_i = ½mv_i²

Where v_f and v_i are final and initial velocities respectively

Thus;

W = ½mv_f² - ½mv_i²

We are given;

W = 150 J

m = 60 kg

v_i = 2 m/s

Thus;

150 = ½×60(v_f² - 2²)

150 = 30(v_f² - 4)

(v_f² - 4) = 150/30

(v_f² - 4) = 5

v_f² = 5 + 4

v_f² = 9

v_f = √9

v_f = 3 m/s

Answer:

acceleration = -1.2 m/s^2

Explanation:

We can use the equation of motion for constant acceleration to solve this problem. When the crate slides along the floor, there is a force of friction acting on it, which opposes its motion. The force of friction can be found using the following equation:

force of friction = mass x acceleration

We can use the kinematic equation to find the acceleration of the crate:    

velocity = initial velocity + acceleration x time

Rearranging this equation, we get:     acceleration = (velocity - initial velocity) / time

Plugging in the values we have:     acceleration = (0 m/s - 12 m/s) / 10 s

Simplifying, we get:   acceleration = -1.2 m/s^2

The required horizontal force to displace the position of a 28-kg chandelier is 33 N.

Here's how to calculate it:

Given: Mass of chandelier, m = 28 kg, Length of the wire, l = 4.0 m, Displacement of position, d = 0.12 m

When the chandelier is in a state of equilibrium, the tension T in the wire and the weight W of the chandelier must be equal.

The tension in the wire is equal to the force that is pulling the chandelier upwards. This force is acting at an angle of 90 degrees to the horizontal component of the tension in the wire.

Here, we can see that the chandelier is moving in a horizontal direction, so we need to calculate the horizontal component of the tension in the wire.

Taking moments about the point where the wire is attached to the ceiling: Anti-clockwise moments = clockwise moments

W * l = F * dF = (W * l)/d

Where W = mg (mass x gravity)

F = (28 kg x 9.8 m/s² x 4 m)/0.12 m= 33 N

The horizontal force required to displace the position of the chandelier 0.12 m to one side is 33 N.

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In studying motion, you need to account for how position changes changes as time passes.

The position of an object is usually described in terms of its distance from a reference point, and motion is the change in position over time. To study motion, you need to observe how an object's position changes as time passes, and use this information to describe and explain the motion. This is done by using different quantities such as distance, displacement, speed, velocity and acceleration, which allow to quantify and analyze the motion.

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