hey!! need this asap!! will mark brainliest! thank you in advance!

Answer:

Newton's Second Law of Motion states that a force on an object is equal to the mass of the object multiplied by its acceleration (F=ma). ... When the punter kicks the ball, his foot exerts a force on the ball. The football then exerts an equal amount of force in the opposite direction on the kicker's foot.

In football, the foot of a kicker applies force to the ball when he kicks it, as the force acting on a ball is equal to that ball's mass times its acceleration, so Newton's second law is applied here.

The precise explanation of how a force can change a body's motion is given by Newton's second law. A body's momentum is said to vary at a rate equal to the force acting on it over time, both in magnitude and direction. A body's momentum is determined by its mass and velocity together.

According to Newton's Second Law of Motion, a force acting on an object is equal to that object's mass times its acceleration (F=ma). The punter's foot applies force to the ball when he kicks it. The kicker's foot is then subjected to an equivalent force from the football acting in the opposite direction.

Therefore, In football, the foot applies force to the ball when he kicks it, so Newton's second law is applied here.

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The speed of a vintage turntable is 33 1/3 mph (rotational speed). b) Calculate the duration of a 45 mph record.

a circular motion, particularly one centred on a fixed point, or the induction of a circular motion: To open the door, turn the handle 180 degrees. Axle-driven wheels revolve around them. The spacecraft circles the planet slowly as it rotates.

Geometry can be used to explain rotation's meaning in mathematics. As a result, it is described as an object moving around with a centre or axis. Any rotation is regarded as the movement of a certain space which freezes as least one point. We are aware of the earth's rotation.

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Answer:

the correct answer is option C , 2.0 V( volts ) !!

explanation : Total potential difference = 6 V

Total resistance = ( 3 + 4 + 5 ) ohms = 12 ohms

so , applying ohm's law to the whole circuit , we get :

V/ I = R

6/ I = 12

I = 6/ 12 = 1/2 = 0.5 ( total current ) ampere or A

now Current through 4 Ohms Resistance = 0.5 A

Resistance we know= 4 Ohms

Applying ohm's law :

V/I = R

V/0.5 = 4

V = 0.5 × 4 = 2 V

The potential difference (p.d.) across the resistor is 2.0 V.

The individual voltage drops across each resistor can be simply calculated as V = I*R where R represents the resistance value.

Total potential difference = 6 V

Total resistance = ( 3 + 4 + 5 ) ohms = 12 ohms

so, applying ohm's law to the whole circuit, we get :

V/ I = R

6/ I = 12

I = 6/ 12 = 1/2 = 0.5 ( total current ) ampere or A

Now Current through 4 Ohms Resistance = 0.5 A

The resistance we know= 4 Ohms

Applying ohm's law :

V/I = R

V/0.5 = 4

V = 0.5 × 4 = 2 V

Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant.

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Two units of magnetic field named after famous Western scientists are Weber and Gauss.

In electromagnetism, the magnetic field is a vector field that represents the magnetic effects of electric charges in motion. The magnetic field is defined as a field in which an electric charge will experience a magnetic force. It is produced by electric charges and currents. A magnetic field is created by a magnet or a moving electric charge or other magnetic fields.

The strength of a magnetic field is determined by the number of magnetic field lines or magnetic fluxes that pass through a surface placed perpendicular to the direction of magnetic field lines. It is calculated in the unit of Tesla (T). In addition to Tesla, there are two other units of magnetic field named after famous Western scientists: Gauss and Weber. A magnetic field with a strength of one gauss is equivalent to one ten-thousandth (0.0001) of a Tesla.

Gauss is a unit of magnetic flux density and is named after the famous German mathematician Carl Friedrich Gauss. Weber is named after Wilhelm Eduard Weber, and it is a unit of magnetic flux. The Weber is equivalent to the magnetic flux that crosses one square meter of surface area at right angles to a magnetic field of one tesla.

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The sprinter's changing speed, as well as the speed of any other moving object or person, is displayed on a velocity-time graph. The slope of the graph line on a velocity-time graph is used to represent acceleration.

Velocity's rate of change with time, both in terms of speed and direction. A point or object going straight ahead is accelerated when it accelerates or decelerates. m/s2 is the unit of acceleration. The term "constant acceleration" refers to the pace at which a particle's velocity changes.

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Among the options given, the use of "autoclave" is the most preferred in a disinfection process for salon implements. Autoclave is a method of sterilizing materials through high-pressure steam.

Autoclaves are the best means of disinfecting salon implements because they kill both bacterial spores and fungi, as well as viruses.An autoclave is used in beauty salons to sterilize items that may have been contaminated with blood, fungi, or bacteria. An autoclave, unlike other forms of sterilization, completely eliminates all types of microorganisms, including viruses and spores, from tools and equipment.

Disinfection is the method of reducing the number of microorganisms on an item to a degree where it is no longer harmful. Bacterial endospores are the most challenging microorganisms to remove or kill. An autoclave is the only method of sterilization that effectively kills all types of bacterial endospores.

An autoclave is the best way to disinfect salon implements since it destroys both bacterial spores and fungi as well as viruses. Sterilization, the process of killing or removing all types of microorganisms, is necessary for beauty salons to guarantee the safety of their customers. Disinfection is the procedure of reducing the number of microorganisms to a point where they are no longer dangerous. Autoclaving is the preferred method of sterilization for salon equipment since it is the only method that can kill bacterial spores.Autoclaves have been used in beauty salons for a long time to sterilize tools and equipment. They are highly effective and have been shown to kill all types of microorganisms, including spores. Autoclaves work by subjecting the objects being sterilized to high-pressure steam. This procedure ensures that all microorganisms are killed and that the objects are safe to use. In conclusion, the use of autoclave is the most preferred in a disinfection process for salon implements because it is the only method that can kill all types of microorganisms, including bacterial spores, fungi, and viruses.

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The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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To find the period of the motion of point A, we need to consider the time it takes for point A to complete one revolution.

Since the wheel is rotating at a constant angular speed, the time it takes for point A to complete one revolution is equal to the time it takes for the grinding wheel to complete one revolution.

The period of the motion of point A can be found by dividing the circumference of the wheel by the tangential speed of the putty.

The circumference of the wheel is equal to 2π times the radius of the wheel (C = 2πR).

So the period T is given by T = C/v, where v is the tangential speed of the putty.

Substituting the value of C, we get T = (2πR)/v.

Therefore, the period of the motion of point A is (2πR)/v.

This means that it takes (2πR)/v seconds for point A to complete one revolution.

In summary, the period of the motion of point A is (2πR)/v, where R is the radius of the wheel and v is the tangential speed of the putty.

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In words, the R2 of 0.27 means that 27% of the variability in y (24-hour urinary Na) can be explained by x (estimated 24-hour urinary Na) obtained from casual urine specimens at one point in time.

The INTERSALT Study was designed to investigate the relationship between dietary sodium and blood pressure (hypertension) in populations worldwide.

The study included 10,079 men and women from 52 population samples in 32 countries. One of the goals of the study was to quantify the relationship between 24-hour urinary Na (y) and estimated 24-hour urinary Na (x) obtained from casual urine specimens at one point in time.

The investigators presented a simple linear regression of y on x, separately for men and women. The regression equation for men was: Y = 1.03x + 7.19, with R2 = 0.27, n = 1369.

The coefficient of determination, R2, is a statistical measure that represents the proportion of the variance for a dependent variable (y) that's explained by an independent variable (x) or variables in a regression model.

In this case, the R2 of 0.27 means that 27% of the variability in y (24-hour urinary Na) can be explained by x (estimated 24-hour urinary Na) obtained from casual urine specimens at one point in time. The remaining 73% of the variability in y is due to other factors that are not included in the regression model.

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Answer:

Explanation:'Distance' is the total length travelled by an object. The standard unit is the 'metre'.

A distance-time graph shows how far an object has travelled in a given time.

Distance is plotted on the Y-axis (left) and Time is plotted on the X-axis (bottom)

In conclusion, using the given values of a circular loop of wire carrying a current of 48 A and producing a magnetic field at its center with a magnitude of 1.20 x 10^-4 T, we can determine that the radius of the loop is 0.05 meters.

To determine the radius of the circular loop of wire, we can use the formula that relates the magnetic field to the current and radius.
The formula is given by:
B = (μ₀ * I * r) / (2 * π * R)
Where:
B is the magnitude of the magnetic field (1.20 x 10^-4 T),
μ₀ is the permeability of free space (4π x 10^-7 T m/A),
I is the current flowing through the wire (48 A),
r is the radius of the loop (which we want to find), and
R is the distance from the center of the loop to the point where the magnetic field is measured (which is the radius of the loop itself).
Rearranging the formula, we get:
r = (B * 2 * π * R) / (μ₀ * I)
Substituting the given values:
r = (1.20 x 10^-4 T * 2 * π * r) / (4π x 10^-7 T m/A * 48 A)
The units cancel out, leaving us with:
r = (1.20 x 2 * r) / (4 x 48)
Simplifying the equation:
r = 0.05 m
Therefore, the radius of the circular loop is 0.05 meters.
In conclusion, using the given values of a circular loop of wire carrying a current of 48 A and producing a magnetic field at its center with a magnitude of 1.20 x 10^-4 T, we can determine that the radius of the loop is 0.05 meters.

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We do not have the value of yo, the initial vertical position of the squirrel (height of the tree limb), so we cannot calculate the exact height of the squirrel above the ground without that information.

What is Velocity?

Velocity is a vector quantity that describes the rate of change of an object's position with respect to time. It specifies both the speed and direction of an object's motion. Velocity is defined as the displacement of an object per unit of time, and it is typically denoted by the symbol "v"

We need to convert the horizontal distance from centimeters to meters and use consistent units in our calculations. Plugging in the given values:

x = 0.186 m

xo = 0 m

vox = 0.1 m/s

Using the horizontal motion equation, we can calculate the time of flight (t) of the nut:

0.186 = 0 + 0.1*t

t = 1.86 seconds

Now, we can use the vertical motion equation to calculate the height (y) of the squirrel:

y = yo + voyt - 0.5g*\(t^{2}\)

Since the squirrel loses its grip and has no initial vertical velocity (voy = 0), we have:

y = yo - 0.5g\(t^{2}\)

Plugging in the known values:

g = 9.8 m/\(s^{2}\)

t = 1.86 s

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Answer:

magnitude and direction

Answer:

It will apply the greatest pressure of an area of 1.

Explanation:

To find pressure use the formula P = F/A

P = 100/1

P = 100

Answer:

10 N / cm^2

Explanation:

The Formiula is P = F / A

P = presure

F = Force in Newtons

A = area.

The answer is the smaller the area the larger the pressure.

The smallest area you have given us is 10 cm^2

The Pressure = 100N / 10 cm^2

Pressure = 10 N/cm^2  

Note: the units are not exactly standard units, but I've given the answer the way the question offers the units.

Answer:

Pacific Ocean

Sixty percent of all active volcanoes occur at the boundaries between tectonic plates. Most volcanoes are found along a belt, called the “Ring of Fire” that encircles the Pacific Ocean. Some volcanoes, like those that form the Hawaiian Islands, occur in the interior of plates at areas called “hot spots.”

Explanation:

where are most volcanoes located in the Pacific ocean

Answer:

3.5+35

1.5+1.2

20+22

42 + 16

= 58 ¹²

Answer:

image distance = 40/13=3.08 cm

Explanation:

The relation of the object distance, image distance, and the focal length of a lens.

1/f =1/v -1/u

v = distance of the image from the lens.

u = distance of the object from the lens.

f = the focal length of the lens.

therefore,

1/5= 1/v -1/8

1/5+1/8=1/v

(8+5)/40=1/v

13/40=1/v

v=40/13 cm

v=3.08 cm

The height reached by the two carts after collision is determined as 5.34 m.

Apply the principle of conservation of mechanical energy.

K.E = P.E

v = √2gh

v = √(2 x 9.8 x 12)

v = 15.34 m/s

Apply the principle of conservation of linear momentum for inelastic collision.

m₁u₁ + m₂u₂ = v(m₁ + m₂)

8(15.34) + 4(0) = v(8 + 4)

122.72 = 12v

v = 10.23 m/s

Apply the principle of conservation of mechanical energy.

P.E = K.E

mgh = ¹/₂mv²

h = v²/(2g)

h = (10.23²) / (2 x 9.8)

h = 5.34 m

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I would say the answer is 3 because by falling technically the ball would be kind of moving in the air. Plus potential energy is when for example a soccer ball isnt moving

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a) The return on the bond when the government defaults can be calculated by considering the bond price at default (Pd) and the bond price at issuance (P). The return is given by the formula:

Return = (Pd - P) / P

b) (i) To find the range of Dt such that the bond price for this debt is the same as that for the risk-free T-Bills, we equate the bond price (P) with the risk-free rate (Rf). Since the equations for bond price are not provided, the specific range of Dt cannot be determined without additional information.

(ii) To find the range of D+ such that the bond price is zero, we set the bond price equal to zero (P = 0) and solve for D+. Without the bond price equation, it is not possible to determine the range of values.

(iii) To determine the range of D such that no investors would buy this bond in the government bond auction market, we need to consider the bond price relative to the risk-free rate. If the bond price is lower than the risk-free rate, rational investors would not be interested in buying the bond. However, without the bond price equation, it is not possible to determine the specific range of D.

c) Given it = 0, n = 0.4, Dt = 0.4, and assuming risk-neutral investors, we can calculate the probability of default (pa) on this debt and the sovereign spread.

To calculate pa, we need to integrate the probability density function (PDF) f(yt+1) over the range where default occurs (0.5 to 1.5) and divide by the total range of Yt+1 (0 to 2). Given that Yt+1 is uniformly distributed, we have:

pa = ∫[0.5,1.5] f(yt+1) dyt+1 / ∫[0,2] f(yt+1) dyt+1

Substituting the PDF f(yt+1) = 1 for 0.5 ≤ Yt+1 ≤ 1.5 and 0 otherwise, we can simplify the equation:

pa = ∫[0.5,1.5] 1 dyt+1 / ∫[0,2] 1 dyt+1

= [0.5,1.5] / [0,2]

= (1 - 0.5) / 2

= 0.25

Therefore, the probability of default (pa) on this debt is 0.25.

The sovereign spread is the difference between the interest rate on the government bond (i) and the risk-free rate on T-Bills (Rf). However, the interest rate on the government bond (i) is not provided, so the sovereign spread cannot be calculated without that information.

In summary, the return on the bond when the government defaults can be calculated based on the bond price at default and issuance. Without the bond price equation, we cannot determine the specific ranges of Dt and D+ that correspond to specific bond prices. Additionally, without the interest rate on the government bond, the sovereign spread cannot be calculated. However, given the provided parameters, we can calculate the probability of default (pa) on the debt as 0.25.

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Answer:

Spaghetti.

Explanation:

Answer:

d= 45 m

Explanation:

speed = distance / time

15= d/ 3

d= 45 m

Answer:

Pressure means physical force that is another person or object.

If the distance between the Earth and the Sun were to double, the intensity of sunlight would decrease by a factor of four.

The original distance between the Earth and the Sun is denoted by "r", and the new distance is denoted by "2r", then the ratio of the intensities of sunlight in the new orbit to the original orbit can be calculated as:

(Intensity in new orbit) / (Intensity in original orbit) = (Distance from Sun in original orbit)^2 / (Distance from Sun in new orbit)^2

= r^2 / (2r)^2

= r^2 / 4r^2

= 1/4

Therefore, the intensity of sunlight in the new orbit would be one-fourth (or 25%) of the intensity of sunlight in the original orbit. This would have a significant impact on the climate and the ecosystems of the Earth, as the amount of solar radiation reaching the planet would be reduced, leading to cooler temperatures and changes in weather patterns.

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The collision frequency is k = Ae^(-Ea/RT) in terms of Arrhenius equation. It stands for how frequently reactant molecules successfully collide. It varies in direct proportion to both the frequency and concentration of molecular collisions in the reaction.

The minimal amount of energy that the reactants require to generate a product during a chemical reaction is known as the activation energy and was first used by Arrhenius. All molecules with energies greater than or equal to the activation energy will collide and produce products, according to the Arrhenius Equation.

The rate at which two atomic or molecular species collide in a given volume during a given period of time is known as the collision frequency.

Specifically for gases, the collision hypothesis is used to forecast the rates of chemical methods. The collision theory is predicated on the idea that in order for a reaction to happen, the reactive components (atoms or molecules) must come into contact with one another or collide.

k = Ae^(-Ea/RT)

Where:

k = rate constant of the reaction,

A = pre-exponential factor

e = base of the natural logarithm,

Ea = activation energy of the reaction,

R = gas constant, and

T = temperature in Kelvin

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Answer:

Rotation

Explanation:

i did the test Gl.

The cycle of day and night is a result of Earth’s spinning on its axis, which is Earth’s Rotation.This is further explained below.

Generally, Rotation can be defined as the ability of a body to turn about its axis or its centre.

In conclusion,The full rotation of the earth takes a month

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The time required to reach 2% of the original speed in the pool of water is 0.0067 s.

Given:

Speed, v = 5 m/s

Mass, 75 kg

Drag force, F = -1.1 × 10⁴ V

The drag force acting on an object in a fluid is given by the equation:

F = -bv

Here b is the drag coefficient and v is the velocity of the object.

From Newton's second law of motion:

F = ma

(-1.10 × 10⁴)V = m × a

a = (-1.10 × 10⁴ V) / m

Substituting the given values:

a = (-1.10 × 10⁴ × 5.0 m/s) / 75 kg

a = -733.33 m/s²

The time it takes to reach 2% of the original speed:

v = u + at

0.1 m/s = 5.0 m/s + (-733.33 m/s²)  t

-4.9 m/s = -733.33 m/s^2 × t

t = 0.0067 s

Hence, the time is 0.0067 s.

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Answer:

Explanation:

Sound, seismic, and electromagnetic waves transmit energy through different mediums due to the motion of particles in the medium.

Sound waves transmit energy through the vibration of particles in a solid, liquid, or gas. The energy is transferred from particle to particle as the wave travels through the medium.

Seismic waves are created by the sudden release of energy from earthquakes, volcanic eruptions, or other geological events. These waves travel through the Earth's solid mantle and crust, transmitting energy through the vibration of particles in the rock.

Electromagnetic waves are a type of wave that does not require a medium to travel through. They are created by the motion of charged particles, such as electrons, and can travel through a vacuum, such as space. Electromagnetic waves transfer energy through the oscillation of electric and magnetic fields.