Imagine you put a canon on the top of a very tall mountain you start firing cannonballs horizontally and each time you add more gun powder to the canon which makes the next cannonball travel further before hitting the ground is it possible that at some point the cannonball will miss the ground what does this have to do with the orbit of the moon

Concavelenses have negative focal length and tlways form virtual images.

The focal length is negative as it lies on the left side of lenses.

Answer:

0.4 g/cm^3

Explanation:

The density of an object can be found using the following formula.

d= m/v

where m is the mass and v is the volume.

The mass of the metal is 6 grams and the volume is 15 centimeters^3

m=6 g

v= 15 cm^3

Substitute these into the formula.

d= 6 g/ 15 cm^3

Divide 6 g by 15 cm^3 (6/15=0.4)

d= 0.4 g/ cm^3

The density of the metal is 0.4 grams per cubic centimeter.

Density = (mass) / (volume)

Density = (6 g) / (15 cm³)

Density = (6/15) (g/cm³)

Density = 0.4 g/cm³

This 'metal' has less than half the density of water, and it floats on water !  It cannot be of Earthly origin, and must have been dropped here by aliens.

Either that, or else the metal has been hammered and stretched and beaten out and shaped so that it has an artificially large volume ... something like the way sailing ships are made out of thick plates of steel.

Answer:

The strain will come to rest after traveling some distance.

distance traveled = 2500 m

Explanation:

The strain will come to rest after traveling some distance.

Applying,

s = ut+at²/2................... Equation 1

Given: u = initial velocity, a = deceleration, t = time, s = distance

From the question,

Given: u = 50 m/s, t = 100s, a = -0.5 m/s²(deceleration)

Substitute these values into equation 1

s = 50(100)+(-0.5)(100²)/2

s = 5000-2500

s = 2500 m

Hence the distance traveled is 2500 m

Answer:The pressure at a depth of 25m in water can be calculated using the formula:

P = ρgh

Where:

P = pressure

ρ = density of water = 1000 kg/m³

g = acceleration due to gravity = 9.81 m/s²

h = depth = 25m

Substituting the values, we get:

P = (1000 kg/m³)(9.81 m/s²)(25m) = 2.4525 x 10⁵ Pa

The total pressure 25m beneath the surface of the lake is 2.4525 x 10⁵ Pa.

Explanation:

This system's potential energy changed by 40 J.

Energy = charge * potential difference

=> Energy = (8v)*5

=> Energy = 40 J

Hence the answer is 40 J.

Potential difference, often known as voltage, is equal to the amount of current times the resistance. One Joule, or one Volt, of energy is required for one Coulomb of charge to flow from one place in a circuit to the another.

V=U q, The change in the potential energy of a charge q transported from point A to point B, divided by the charge, is what is used to determine the electric potential difference between points A and B, or VBVA. The joules per coulomb unit of the potential difference is called the volt (V).

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The electrolyte that has a higher concentration in the extracellular fluid than in the intracellular fluid is sodium ions.

Ions are atoms that have lost or gained electrons due to reactions, they are classified into anions and cations: Anion: atom that receives electrons and is negatively charged.

Ions are atomic species formed when an electrically neutral species loses (cations) or gains electrons (anions).

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Answer:

20

Explanation:

force=work done÷distance

Answer:

In physics and engineering, a resultant force is the single force and associated torque obtained by combining a system of forces and torques acting on a rigid body. The defining feature of a resultant force, or resultant force-torque, is that it has the same effect on the rigid body as the original system of forces.

I hope it's helpful!

Answer:

it is a force that result in anything to be done

We can use the kinematic equations for circular motion to solve this problem. The equation we will use is:

θ = (s / r)

where θ is the angle of rotation (in radians), s is the displacement, and r is the radius of the circular path.

In this case, the object makes 3/4 revolution, which is equivalent to an angle of rotation of:

θ = (3/4) x 2π radians = 1.5π radians

The displacement is given as 6 m.

Therefore, we can rearrange the equation to solve for the radius:r = s / θ

r = 6 m / (1.5π radians)

r ≈ 1.273 m

Therefore, the radius of the circular path is approximately 1.273 meters.

What is a path ?

A path is a route or way that someone or something follows to reach a destination or achieve a particular goal. It can be physical or abstract, and can refer to a variety of contexts such as travel, communication, decision-making, or personal development.

A physical sense, a path can refer to a trail, road, or sidewalk that people use to walk, cycle, or drive to a particular location. In computing, a path refers to the sequence of directories and that lead to a specific file or folder.

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Answer:

0.018 cm

Explanation:

The increase in length can be calculated using the formula:

ΔL = α * L * ΔT

where ΔL is the increase in length, α is the linear expansivity of iron, L is the original length of the rod, and ΔT is the change in temperature.

Plugging in the values, we get:

ΔL = 1.2 x 10^-5 * 30 * 50

ΔL = 0.018 cm

So, the iron rod increases in length by 0.018 cm when heated through 50 Kelvin.

A four-column table with four sub-columns and five rows could present a wealth of information about different aspects of employment, making it a useful tool for human resources professionals, job seekers, or anyone interested in the job market.

A four-column table with four sub-columns and five rows can present various types of information related to employment. The first column of the table could be used to provide information about different job titles or positions, while the second column could list the number of people currently employed in each position.

The third column could be used to display information about the salary or hourly wage associated with each job title. This information could be further broken down into sub-columns that list the base salary, any bonuses or commissions, and any benefits or perks associated with each position.

The fourth column could be used to display other relevant employment-related data, such as the average tenure of employees in each position, the required education or experience level for each position, or the projected job growth rate for each industry.

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Divide the square of the velocity by the sum of the acceleration caused by gravity multiplied by two times the friction coefficient. a = 2.5 m/s2. = 2500 N.

The observation distance, reaction distance, and braking distance are added up to form the total stopping distance. Shortly after the driver decides to slow down or stop, some time has passed. The response distance is the length of time it takes too respond and enter the proper braking position.

For every 10 meters, taking an level path along a road encircling the mountain is substantially less expensive (in terms of both effort and time), but the overall cost increases over a much greater distance. The frictional of distance is measured in each case by the time and/or effort needed to go ten meters.

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The wavelength of the fundamental tone in this case is 10.00M

What is Wavelength?

Wavelength is a physical quantity that measures the distance between two consecutive points in a wave that are in phase, that is, that have the same degree of oscillation or displacement from their rest position. It is usually represented by the symbol λ (lambda) and is expressed in units of distance, such as meters, centimeters, or nanometers, depending on the scale of the wave being considered. In general, the wavelength of a wave is inversely proportional to its frequency, with longer wavelengths corresponding to lower frequencies and shorter wavelengths corresponding to higher frequencies.

The fundamental tone of an organ pipe that is open at one end and closed at the other has a wavelength that is four times the length of the pipe. Therefore, the wavelength of the fundamental tone in this case is:

λ = 4L = 4(2.50 m) = 10.00 m

where L is the length of the pipe.

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The breakdown electric field of polyethylene foam alone cannot be used to estimate the highest voltage that can be applied to the wire before it breaks down.

The biggest electrical potential difference that a system can withstand without experiencing harm or failure is known as the maximum voltage. As exceeding the maximum voltage can lead to electrical failure, fire, or even harm, it is crucial in the design and operation of electrical and electronic devices. The design, manufacturing method, and material properties of the device, as well as the environment in which it will be utilised, all influence the maximum voltage. It is crucial to follow the manufacturer's recommendations for maximum voltage and to routinely test and maintain equipment to make sure it is operating within its limitations in order to ensure safe operation.

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The center of gravity of a baseball bat is typically closer to the heavy end of the bat. As a result, the center of gravity of the bat will be located closer to the heavy end than to the handgrip. Therefore, the correct answer is C) closer to the heavy end.

This is because the mass of the bat is concentrated in the barrel end, which is heavier than the handle. When the bat is balanced on a fulcrum, the heavy end of the bat will naturally want to fall downward due to the force of gravity.

The center of gravity is the point at which the weight of an object can be considered to be concentrated. It is the average position of the weight distribution of the object. When a baseball bat is balanced on a fulcrum, the center of gravity of the bat must be directly above the fulcrum in order for the bat to remain in a state of equilibrium.

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Answer:

B

Explanation:  HELP ME PLEASE, WRITE A ONE PAGE ESSAY TO EXPLAIN THE AUTHOR'S PURPOSE IN WRITING HOM SMART ARE ANIMAL

During the resting phase,  −80 mV is the electric potential energy of a typical Na ion outside of the cell

The power required to move a charge in opposition to an electric field is known as electric potential energy. A charge must be moved through a stronger electric field with more energy, but it also must be moved through a weaker electric field with more energy.

You cannot see the charge that is waiting to pass through the wires when a light switch is off. That is but one illustration of electric potential energy. Other instances include: a switched-off incandescent light bulb.

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The latent heat of fusion is 335714.29 J/kg.

To calculate the latent heat of fusion, we can use the equation:

Q = m * L

Where:

Q = heat energy transferred

m = mass of the substance

L = latent heat of fusion

Given:

Mass of water (m) = 700 g = 0.7 kg

Heat energy transferred (Q) = 235200 J

To find the latent heat of fusion (L).

Since the water is being transformed into ice, we know that the heat energy transferred during this phase change is equal to the latent heat of fusion.

Rearrange the equation to solve for L:

L = Q / m

L = 235200 J / 0.7 kg

L ≈ 335714.29 J/kg

Therefore, the latent heat of fusion is approximately 335714.29 J/kg.

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Answer:

Work = Work out

Work in = 5 N * d     where d is the distance the handle travels

Work out = 50 N * 7 m = 350 Joules

d = 50 N * 7m / 5 N = 70 m

This is the distance traveled by the force of 5 N

A man lifts a bucket of water from a well that is 7 meters deep. The bucket and water together weigh 50 Newtons. He turns the crank handle with a force of 5 Newtons. The effort force is 70 Newtons.

If a force is applied for a machine to move or change the position of the object is known as Effort force.

The effort force formula can be described as,

Fe = Fl. dl / de

Fe is effort force (N, lb)

Fl is load force (N, lb) (note that weight is a force)

dl is distance from load force to fulcrum (m, ft)

de is distance from effort force to fulcrum (m, ft)

Here, the given data to find the effort force is,

Fl =50 Newtons

dl = 7 meters

de = 5 Newtons.

Substituting all the values, we get,

Fe = 350/5

Fe = 70 Newtons.

Thus, the effort force is 70 Newtons.

Hence, Option A is the correct answer.

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Answer:

Explanation:

and please add me on sñap

The ocean is very calm and beautiful its so soft and the waves are beautiful especially at night.

Some people are afraid of the ocean because of probably sharks, fish, or those grass in the ground. some times they think the ocean is going to take them away i think thats a phobia.

To determine the minimum constant acceleration required for the aircraft to become airborne after a takeoff run of 204 m, we can use the following kinematic equation:
v^2 = u^2 +  as

Where:v is the final velocity (liftoff speed) in m/s.u is the initial velocity (zero in this case) in m/s.a is the acceleration in m/s^2.s is the distance traveled in meters.First, we need to convert the liftoff speed from km/h to m/s:
129 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 35.83 m/s
Now, we can rearrange the kinematic equation to solve for the acceleration:
a = (v^2 - u^2) / (2s)a = (35.83 m/s)^2 / (2 * 204 m)a ≈ 31.51 m/s^2
Therefore, the minimum constant acceleration required for the aircraft to become airborne after a takeoff run of 204 m is approximately 31.51 m/s^2.

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Answer:

Kinetic energy=1/2mvsquare

1/2 x 1400 x 25 x25

Therefore kinetic energy= 437500Joules

Explanation:

Answer:

437,500 Joules

Explanation:

KE= 1/2 × M

x V^2, where

M = Mass,

V = Velocity

KE = 1/2 × 1400 × 25^ 2

KE= 1/2 × 1400 × 625

KE = 437,500 Joules.

Answer:

a1)gravity

not sure on others

Explanation:

cause the gravity force pulls u down

Answer:

a) i) Gravitational force

ii) Air resistance

b) (I cannot understand what is the question saying but the unit of acceleration is m/\(s^{2}\) or \(ms^{-2}\))

ii) Because when the parachutist is falling, the gravitational force is pulling him down. But the air resistance is pushing him upwards acting against the gravitational force resulting in a decreasing acceleration.

iii) This is because soon the air resistance catches up with that of the gravitational force and it cancels the gravitational force so he is falling in a constant velocity. This is called terminal velocity when the gravitational force gets cancelled resulting in a free fall where his weight brings him down.

Answer:

opaque

Explanation:

Materials such as wood, stone, and metals are opaque to visible light.