A 500 N force is applied to a 25m/s2 object. The mass of the object is ____.

A. ) 20kg
B. ) 20 m/s
C. ) 12,500 m/s
D. ) 12,500 kg​

Answer:

greatest displacement = 44.1m

initial velocity= 29.4m/s

Explanation:

Greatest displacement

s=1/2at^2

= (9.8/2 ×9)m

= 44.1m

initial velocity

s=ut-1/2at^2

44.1= 3u -(1/2×9.8×9)

44.1=3u-44.1

3u=88.2

u=29.4m/s

Answer:

answer is D.it will decrease

Answer:

D. It will decrease

Explanation: Study island ;)

Answer:

0

Explanation:

as Newton 1st Law said that every object will remain at rest or in uniform motion (constant speed) in a straight line unless compelled to change its state by the action of an external force

Net Force = 0

The internal resistance of a 12V car battery is around 0.01 ohms. The value of internal resistance depends on the battery's state of charge and temperature. When a battery is fully charged, it has a low internal resistance, which can vary between 0.005 and 0.01 ohms.

When the battery is discharged, its internal resistance increases, which can vary between 0.02 and 0.07 ohms. However, it must be noted that this variation is relative, as a 12V car battery has a relatively low internal resistance compared to other types of batteries. Car batteries are used to power a car's starter motor, lights, and other electrical components. Internal resistance is a critical parameter of a car battery, as it determines the battery's ability to deliver high current. The internal resistance of a car battery can vary with the state of charge and temperature. A fully charged battery has a lower internal resistance than a discharged battery. When a battery is discharged, its internal resistance increases, which can lead to voltage drop and other performance issues. A car battery's internal resistance also plays a role in determining its power output. High internal resistance can lead to power loss, which reduces the battery's efficiency. In contrast, a low internal resistance ensures that the battery can deliver high current without significant power loss.

The internal resistance of a 12V car battery is typically around 0.01 ohms. This value can vary with the state of charge and temperature. A fully charged battery has a lower internal resistance than a discharged battery. The internal resistance of a car battery is an essential parameter that determines the battery's power output and efficiency. A low internal resistance ensures that the battery can deliver high current without significant power loss, while high internal resistance can lead to power loss and other performance issues.

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Junita will do more work on the square box. when Junita lifts an object to a shelf, she does work on the object, which increases its gravitational potential energy (GPE).

The amount of work done on an object is equal to the increase in its GPE.

Junita lifted a round box and a square box to a shelf. She did work on the boxes, increasing their GPE. The round box's GPE increased by 50 J, meaning Junita exerted 50 J of work.

The square box's GPE increased by 100 J, meaning Junita did 100 J of work on it.

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The displacement of the woman at 6:25 pm is zero (0) while her total distance at 6:25 pm is 20 km.

The given parameters;

Displacement is defined as the change in the position of an object. It can be described as 'how far' an object is displaced from the initial position.

The woman's displacement = x₂ - x₁ = 10 km - 10 km = 0

Distance is the total path covered by an object during motion.

Total distance of the woman at 6:25 pm = 10 km + 10 km = 20 km

Thus, we can conclude that the displacement of the woman at 6:25 pm is zero (0) while her total distance at 6:25 pm is 20 km.

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Given that the coefficient of kinetic friction of block A traveling up the bar BC when the angle associated with θ is 30 degrees is 0.3, what is the acceleration (in ft/s²) of the block while it is moving?The formula for frictional force is given by;Ff = μ*FNWhere,Ff = Frictional forceμ = Coefficient of kinetic frictionFN = Normal forceNormal force is given by;FN = m*gWhere,m = Mass of the blockg = acceleration due to gravity.

When the block is traveling up the bar BC, it will experience two forces; weight and friction. These two forces will affect the block's motion. Using trigonometry, the weight can be resolved into two components.The formula for acceleration is given by;F - Ff = m*aWhere,F = Force in the direction of motionFf = Frictional force acting in the opposite directionm = Mass of the blocka = Acceleration of the blockSubstitute the value of the weight and calculate for the force in the direction of motion.F = m*g*sin(θ)F = 5*32.2*sin(30)F = 80.83 lbfNow substitute the value of frictional force in the opposite direction.Ff = μ*FN = 0.3 * m * g*cos(θ)Ff = 0.3 * 5 * 32.2 * cos(30)Ff = 42.16 lbfSubstitute the given values to calculate the acceleration of the block while it is moving;a = (F - Ff)/ma = (80.83 - 42.16)/5a = 9.13 ft/s²Therefore, the acceleration (in ft/s²) of the block while it is moving is 9.13 ft/s² (main answer).

A block moving up an incline experiences friction. As the incline angle θ increases, the amount of force required to move the block up the incline increases as well. When the block moves up the incline, its weight is resolved into two components: one component acting in the direction of motion, and another component acting perpendicular to the incline. When the block moves up the incline, the force in the direction of motion is equal to the component of weight that is acting in that direction minus the force of friction. The acceleration of the block can be calculated using the formula F - Ff = ma.

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The acceleration of block A while it is moving up the bar BC at an angle of 30 degrees is approximately 7.73 ft/s².

Since the acceleration is in the direction of motion, we can rewrite the equation as:

ma = (m * g * sin(theta)) - (μ * m * g * cos(theta))

The mass cancels out from both sides of the equation, leaving us with:

a = g * (sin(theta) - μ * cos(theta))

Now we can substitute the known values into the equation:

a = 32.2 ft/s² * (sin(30°) - 0.3 * cos(30°))

Using trigonometric identities, we can simplify the equation:

a = 32.2 ft/s² * (0.5 - 0.3 * √(3)/2)

a = 32.2 ft/s² * (0.5 - 0.3 * √(3)/2)

a = 32.2 ft/s² * (0.5 - 0.3 * √(3)/2)

a ≈ 32.2 ft/s² * (0.5 - 0.3 * 1.732/2)

a ≈ 32.2 ft/s² * (0.5 - 0.3 * 0.866)

a ≈ 32.2 ft/s² * (0.5 - 0.2598)

a ≈ 32.2 ft/s² * (0.2402)

a ≈ 7.73 ft/s²

Therefore, the acceleration of block A while it is moving up the bar BC at an angle of 30 degrees is approximately 7.73 ft/s².

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Answer:

W = 0.15 J

Explanation:

Given that,

The force acting on the ball, F = 15 N

It makes contact with the ball for a distance of 0.01 m

We need to find the work done on the ball. The work done can be calculated as :

W = Fd

So,

W = (15 × 0.01) J

W = 0.15 J

So, the work done is 0.15 J.

As the hanging mass increases, the time taken by the weight to reach the ground decreases. This happens because an increase in the mass leads to an increase in gravitational force.

The difference between the 15g run and the 25g run in the video was that the 25g run took less time than the 15g run. The concrete evidence to support this observation is that the time taken by the weight on the 25g run was less than the time taken by the weight on the 15g run.

As the hanging mass increases, the time taken by the weight to reach the ground decreases. This happens because an increase in the mass leads to an increase in gravitational force. This results in an increase in the acceleration of the weight towards the ground.

Therefore, as the hanging mass increases, the time taken by the weight to reach the ground decreases.

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Answer:

the surface this works out to 9.8 m/s squared.

A 200.0 lb pumpkin is dropped from the roof of a 5-story (15 m) building. assuming it starts from rest and ignoring drag forces, with what speed does it impact the ground below is as follow:

The potential energy (P.E.) of an object is the energy it has due to its place, and the higher the object's height, the more potential energy it has. As a result, the pumpkin, with a weight of 200.0 lb, is at a height of

5 x 3.28 = 16.4 meters.

Its gravitational potential energy is equal to the product of the mass of the object, the acceleration due to gravity (9.8 m/s²), and its height above the ground. The gravitational potential energy can be calculated as follows:

Gravitational Potential Energy = mgh

where m is the mass, g is the acceleration due to gravity, and h is the height above the ground.

So, Gravitational Potential Energy

= (200.0 lb) x (1 kg/2.2 lb) x (9.8 m/s²) x (16.4 m)

= 1.867 kJ (rounded to three significant figures)

Now, we know that all of this potential energy will be transformed into kinetic energy (K.E.) when the pumpkin is released and starts falling. The kinetic energy formula is:

K.E. = ½mv²

where m is the mass of the object, and v is the velocity (speed) of the object.

Using the above formula, we can calculate the velocity (speed) of the pumpkin when it reaches the ground below.

K.E. = P.E. (since potential energy equals kinetic energy)

½mv² = mgh

We'll substitute in the numbers we've computed so far and solve for v.

v = √(2gh)

Where v is the speed, g is the acceleration due to gravity, and h is the height above the ground.

So, v = √(2gh) = √(2 x 9.8 m/s² x 16.4 m) = 18.2 m/s (rounded to two significant figures)

Therefore, the speed with which the pumpkin strikes the ground is 18.2 m/s.

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Work can be calculated with the equation given as Work = Force × Distance

When a force acts on an object to cause a displacement, it was said that work was taking place. Three variables must be known in order to calculate the work when a force causes an object to be displaced.

Work = Force × Distance is the formula for calculating work. The joule (J), also known as the Newton meter (N m), is the SI unit for work. When an object is moved over a distance of 1 m with 1 N of force, one joule is equal to the amount of work that is accomplished.

To determine the amount of work, three quantities must be known. The force, the displacement, and the angle between the force and the displacement are the three variables.

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The motorcyclist needs to use a copper wire with a length of 5.3 cm to achieve a current of 5.6 A when connected to the motorcycle's 12 V battery.

To determine the length of copper wire that the motorcyclist needs to use to achieve a current of 5.6 A,

we need to use the formula:

R = ρl/A

where R is the resistance of the wire, ρ is the resistivity of copper, l is the length of the wire, and A is the cross-sectional area of the wire.

We can rearrange this formula to solve for the length of the wire:

l = RA/ρ

where

R = V/I is the resistance of the wire,

V is the voltage of the battery, and

I is the desired current in the wire.

In this case, the voltage of the battery is 12 V and the desired current is 5.6 A.

The cross-sectional area of the wire can be determined using the formula:

A = π\(r^2\)

where r is the radius of the wire, which is half the diameter.

So, A = π \((0.23/2 mm)^2\) = 4.15 x \(10^{-5} \: m^2\)

The resistivity of copper is 1.68 x \(10^{-8}\) Ωm.

Substituting the values into the formula, we get:

R = V/I = 12 V/5.6 A = 2.14 Ω

l = RA/ρ

I = (2.14 Ω) x (4.15 x \(10^{-5}\)) / (1.68 x \(10^{-8 }\)Ωm)

I = 0.0053 m = 5.3 cm

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The car experiment involves the measurement of the distance traveled by the car down the ramp. The statement, "My car traveled 15 cm down the ramp" represents the results of the experiment. Thus, the answer is option c. Results.

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Answer:

results

Explanation:

The force exerted by a spring with a stiffness of 100 N/m that was compressed by 0.02 m can be calculated using the formula F = kx.

where F is the force in newtons, k is the stiffness in newtons per meter, and x is the compression or extension in meters.

Substituting the given values, we get:

F = 100 N/m x 0.02 m
F = 2 N

Therefore, the force exerted by the spring is 2 N.

To find the force exerted by a spring with a stiffness of 100 N/m that was compressed at 0.02 m, we can use Hooke's Law. Hooke's Law states that the force exerted by a spring is equal to the product of its stiffness (k) and the displacement (x) from its equilibrium position:

Force (F) = k x X

Given the stiffness (k) is 100 N/m and the displacement (x) is 0.02 m, we can plug these values into the formula:

Force (F) = 100 N/m x 0.02 m

Now, simply multiply the values:

Force (F) = 2 N

Therefore, the force exerted by the spring is 2 Newtons (N).

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One key difference between living on earth and in space is the effect of gravity on the human body. On earth, gravity provides a constant force that keeps our bones and muscles strong. In space, however, gravity is much weaker and astronauts experience weightlessness. This can lead to various health problems, such as bone loss, muscle atrophy, and fluid shifts. Therefore, astronauts need to exercise regularly and follow a balanced diet to maintain their physical and mental well-being.

Gravity is a natural phenomenon whereby everything that has mass or energy in the universe—including planets, stars, galaxies, and even light—attracts one another.

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Answer:

They transfered more energy in the morning.

Explanation:

This is because, let me put this in simple words, you have more energy, you can run more laps around the track, right? This is the same with  the waves. They have more energy, so they can crash aganst the shore more!

Answer:

Explanation:

just use the gravational force equation which is G x m of earth x m of object divided by r squared (which is radius of earth)

The average force acting on the ball is biggest in the with the cement floor case 2 when in the collision the ball bounce back to half of its initial height.

It is asked that in which case the average net force on the ball is highest.

According to impulse-momentum theorem,

Impulse I = F.Δt

where, F is the net average force and Δt is the time of contact during the collision.

In the case of collision with the rubber piece the time of contact of the ball and the ball increases by large amount while in the case of cement floor the time of contact is very very less.

The change in momentum which is equal to the Impulse is also biggest in the case of cement floor because the transfer of kinetic energy of the ball in the case of cement floor will be almost immediate.

The Bigger change in momentum and the smaller time of contact makes the average force on the ball is biggest in the case of cement floor case.

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An object with greater charge will exert a greater force on an object than an object with smaller charge would. However, if you consider two charges that exert a force on each other, regardless of the magnitude of charge, both charges will exert an equal force on each other because of Newton's third law.

Answer:

 ΔR = 5 s

Explanation:

The absolute uncertainty or error in an expression is

       ΔR = | \(\frac{dR}{dB}\) | ΔB + | \(\frac{dR}{dA}\) | ΔA

the absolute value guarantees to take the unfavorable case, that is, the maximum error.

We look for the derivatives

       \(\frac{dR}{dB}\) = 1

       \(\frac{dR}{dA}\) = -1

we substitute

       ΔR = 1 ΔB + 1 ΔA

of the data

       ΔB = 3 s

       ΔA = 2 s

       ΔR = 3 + 2

       ΔR = 5 s

Explanation:

Mass = m

Velocity = v

If Mass is increased 4 times = 4m

New velocity = 2v

Kinetic Energy

\( \frac{1}{2}m {v}^{2} \)

So it will be 1/2 × 4m × 2v × 2v

\(8m {v}^{2} \)

so Kinetic Energy will increase 4 times

The charge of a particle in a magnetic field can be determined by measuring the force, velocity, and strength of the magnetic field using the Lorentz force equation. There are various methods to measure the charge, such as using a particle accelerator or mass spectrometer.

In a magnetic field, charged particles experience a force that can be used to determine their charge. This force, known as the Lorentz force, is given by the equation F = q(v x B), where F is the force, q is the charge of the particle, v is the velocity of the particle, and B is the strength of the magnetic field.

To determine the charge of a particle in a magnetic field, you can measure the velocity of the particle and the strength of the magnetic field, and then measure the force experienced by the particle. By rearranging the equation F = q(v x B), you can solve for the charge q.

It is important to note that the Lorentz force only applies to charged particles that are in motion. If the particle is stationary, it will not experience any force in a magnetic field.

In practice, there are many ways to measure the charge of a particle in a magnetic field, such as using a particle accelerator or a mass spectrometer. These techniques involve manipulating the motion of the particle in a controlled way and measuring the resulting forces and velocities to determine its charge.

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Complete question:

How can I know the charge of a particle in a magnetic field?

Answer:

60

Explanation:

60secs = 1 minute

if you want to show you work further then

10 divided by 10 = 1

so each second is 1 heart beat

so then just 60 divided by 10 equals 6

so then just do 6 times 10 equals 60 beats

One piece of refuse-compaction and earth-moving equipment is needed at the landfill site for approximately each 80 loads per day. So the correct answer is c.

This means that based on the specific conditions or requirements of the landfill site in question, it is estimated that one piece of refuse-compaction and earth-moving equipment would be needed to handle approximately 80 loads of refuse per day. This information may be based on factors such as the volume of waste generated, the efficiency of the equipment, the capacity of the landfill site, and other operational considerations.

It's important to note that the actual number of loads per day that would require equipment may vary depending on various factors and site-specific conditions. The given answer is an estimate and may not be universally applicable to all landfill sites or situations.

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Answer:

The inventor of the electric cell was:

Alessandro Volta (in other words, Volta)

Explanation:

Answer:

Volta

Hope this helped you!!

Brainliest plsss

Explanation:

Alessandro Volta, in full Conte Alessandro Giuseppe Antonio Anastasio Volta, (born February 18, 1745, Como, Lombardy [Italy]—died March 5, 1827, Como), Italian physicist whose invention of the electric battery provided the first source of continuous current

The normal force applied by the table onto the gingerbread man is 1.96 N.

The normal force is a type of force that is felt when a surface pushes against an object that is placed on that surface.

In other words, a normal force is a type of force directed opposite to the weight of an object. The normal force of an object is always directed upwards while the weight of the object is directed downwards.

According to Newton's third law of motion, the magnitude of the normal force of an object acting upwards is always equal to the weight of the object acting downwards.

The normal force applied by the table onto the gingerbread man is calculated as follows;

Fn = mg

where;

Fn = 0.2 kg  x  9.8 m/s²

Fn = 1.96 N

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Answer:

Explanation:KE = 18 J