If the resultant force vector is 10 N magnitude in the positive y axis direction (North), find the equilibrant force.

Explanation:

because the track and the car moved same speed there their acceleration will be the same

a) The acceleration of the car and the truck are equal since  for both vehicle is 15km/h and the time taken for both vehicle is also the same 5s.

b) The acceleration of the each vehicle is 0.83334 m/s².

Given data in the question is,

Time taken for both car and truck, t = 5 seconds

Initial velocity of car, Uc =50km/hr =13.8889 m/s

Final velocity of car, Vc = 65 km/hr = 18.0556 m/s

Since the truck starts from rest,

Initial velocity of the truck Ut =0

Final velocity of the truck Vt = 15 km/hr = 4.16667 m/s

Acceleration can be defined as the rate of change of velocity.

a) The acceleration of the car and the truck are equal since  for both vehicle is 15 km/h time taken for both vehicle is also the same 5s.

b) The acceleration of each vehicle is to determine.

To determine the acceleration for car and the truck , we use the first equation of motion:

v = u+ at

Where v is the final velocity,

u is the initial velocity,

a is the acceleration,

t is the time.

Now, For the car,

13.8889 m/s = 18.0556 m/s + ( a × 5)

a = \(\frac{ 18.0556 m/s- 13.8889 m/s}{5}\)

a = \(\frac{4.1667}{5}\)

a = 0.83334 m/s².

Hence, the acceleration of the car is 0.83334 m/s².

For the truck,

4.16667 m/s = 0 + (a× 5)

a = \(\frac{0-4.16667}{5}\\\)

a = \(\frac{4.16667}{5}\)

a = 0.83334 m/s²

Hence, the acceleration of the bicycle is 0.83334 m/s².

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Answer:

Protection – Protect the wounded area with a support or something similar.

Rest – Do not continue to exercise while your wound is healing. It may take a few weeks or months to recover. You may need crutches or a sling.

Ice – Wrap a bag of ice or a bag of frozen peas in a towel and apply it to the wounded area for 15–20 minutes every two to three hours.

Compression – Apply elastic compression bandages to the wounded area during the day to reduce swelling.

Elevation – Make sure the injured body part is elevated above the height of your heart as much as possible to help reduce swelling.

Explanation:

Just did it.

Answer:

The five-step process for treating a muscle or joint injury such as an ankle sprain is called "P.R.I.C.E." which is short for Protection, Rest, Ice, Compression, and Elevation).

It can be used even by someone without first-aid training, and should be used immediately when an injury occurs – the earlier, the better – while further medical attention is being sought.

If the athlete experiences too much pain during the process, stop immediately.

"P" is for Protection

Protect the injured person and the area being treated but also protect yourself. If the injury occurs on the sports field, stop the game.

Protect the area being treated with a splint if possible.

If the athlete can move, carefully move them to a safer area using a stretcher or a crutch, but if there is any doubt, do not move the injured athlete.

"R" is for Rest

When a child is injured, the body responds in an effort to defend, localize, protect, and clean up the injured area, a response called inflammation. At the time of injury small blood vessels at the injury site rupture and cause tissue bleeding, which, in turn, can cause bruising and swelling.

Explanation:

There are five warning signs of inflammation:

Pain

Redness;

Tissue hotness;

Swelling, and

Loss of function.

Not every injury exhibits all these signs, but if your child is in pain then it is important to stop exercising immediately to avoid further damage.

"I" is for Ice

As soon as possible after injury, begin applying ice continuously for the first 15-20 minutes to decrease swelling and pain.

An ice bag can be applied directly to the skin (except on the outside of the knee) unless the child has a known cold allergy.

The safest form of icing is to use a plastic bag with ice cubes or crushed ice, or instant cold packs. Do not use “blue ice” or “gel packs”.

While icing will be uncomfortable at first, in 2 to 3 minutes, the skin will go numb and the ice bag will feel more comfortable.

If the child is very uncomfortable with ice bag, then a barrier like a wet towel can be placed between the ice and skin.

The ice bag can be secured in place using an elastic bandage, but the compression should not be too tight.

During the application of the ice, ask the child to wiggle their fingers/toes and monitor tissue around area that is being iced to ensure that they are not experiencing a lost of sensation.

Icing for 15-20 minutes with an ice bag is unlikely to cause nerve damage or frostbite; however, any loss of sensation and any changes in tissue coloration in areas other than the area that is being iced indicate that the application is no longer safe.

Because ice and plastic bags are so important, make sure that someone brings these to every practice and game. Better yet, to be on the safe side, bring your own!

The acceleration of the object is determined as -2.5 m/s².

Acceleration is the rate of change of velocity with time.

Mathematically, acceleration is given as;

a = Δv/Δt

a = (v₂ - v₁)/(t₂ - t₁)

where;

From the graph;

the initial velocity = 40 m/s

the final velocity = 10 m/s

the final time = 12 seconds

the initial time = 0 second

acceleration = (10 - 40) / (12 - 0)

acceleration = -30/12

acceleration = -2.5 m/s²

Thus, the acceleration of the object is determined as -2.5 m/s².

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The weight of the object from the information provided in the question is  1500 N.

We know that pressure = Force/area. We have the following information from the question;

Pressure =500 Nm-2

Area = 3 m2

Hence;

Force = Pressure × area

Force = 500 Nm-2 × 3 m2

Force = 1500 N

Hence, the weight of the object is 1500 N

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The elasticity and Poisson's ratio for this metal is 0.232.

What is ratio?

The realation between two numbers which shows how much bigger one quantity is than another.

Sol-

As per the given question

P=190KN

d=16 mm

Lo=50mm

X=50.1349-50=0.1349mm

Y=15.99-16=-0.01mm

The formula-

E=ó/€

Ó=P/A

A=r/4 d^2 =π/4(16)^2=201.062 mm

ó={190(1000)}201.062=944.982 Mpa

E=944.982/0.002698=350.253 GPa

€y=-0.000625

v=0.232(answer)

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Answer:

The momentum and the kinetic energy remains constant.

Explanation:

A uniform circular motion is defined as the motion of a body which moves in a constant speed or at the same speed during the motion.

In the context, it is given that a satellite is moving around the earth in a circular orbit at a constant speed. The satellite has certain momentum as well as energy.

We can conclude that the kinetic energy and the momentum of the satellite remains constant as the momentum and kinetic energy depends on the speed of an object And here the speed of the satellite is constant, so the moment as well as the kinetic energy of the satellite remains constant while moving in a circular path.

Answer:

9.8

Explanation:

distance=vt

1.40*7=distance

Answer:

Hey, bro here is the explanation....

Explanation:

Hope it helps...

Answer: The equation p=3g/4πRG is correct. And I hope this helps you.

Explanation:

Answer:

a)  y = 42 t - 4,905 t² ,      v = 42 - 9.81 t,  b)   t = 4.281 s , c)   y = 89.9 m

Explanation:

This problem is an example of vertical launch

a) the expression for the position is

         y = v₀ t - ½ g t²

we substitute

          y = 42 t - 4,905 t²

the expression for speed is

        v = v₀ - gt

        v = 42 - 9.81 t

b) the speed is null when v = 0

         v₀ = gt

          t = v₀ / g

          t = 42 / 9.81

          t = 4.281 s

c) for the maximum height we can use the expression

        v² = v₀² - 2gy

    at maximum height v = 0

         y = v₀² / 2g

     let's calculate

        y = 42 2/2 9.81

        y = 89.9 m

Answer:

Explanation:

The most important thing to remember about parabolic motion in physics is that when an object reaches its max height, the velocity right there at the highest point is 0. Use this one-dimensional motion equation to solve this problem:

v = v₀ + at and filling in:

0 = v₀ + (-9.8)(4.0) **I put in 4.0 for time so we have more than just 1 sig fig here**

0 = v₀ - 39 and

-v₀ = -39 so

v₀ = 39 m/s

Answer: Yes. Please find the answer in the explanation.

Explanation:

Yes. Since velocity is a vector quantity, that is, it has both magnitude and direction.

If the displacements covered are not of the same direction, the velocity will not also of the same direction.

Take for instance, if the velocity in a positive is 40 m/s and velocity in the opposite direction is - 20 m/s . Then, the resultant velocity will be 40 - 20 = 20 m/s

Therefore,  it is possible that at any time during their trip their velocity was -20 m/s.

Metallic bonding contributes to characteristic properties such as conductivity, malleability, ductility and others of metal due to their presence.

Metallic bonding is characteristic of metals where electrons and postive charges in metal participate in bonding. It has multiple significance such as it provides electrically conductive nature to the metal. The free delocalized electrons move under the influence of applied voltage giving the property of conductivity.

They are also responsible for thermal conductivity. The metallic bonding can also be attributed to malleability, ductility, strength, toughness and metallic luster.

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The scattered photon retains an energy of 29.7 keV after interacting with a barium electron in the N-shell, which has a binding energy of 0.3 keV.

The initial photon energy (E₁) is 45 keV, and it interacts with a barium (Ba) electron in the N-shell, which has a binding energy (Eb) of 0.3 keV. The ejected electron carries away an energy (Ee) of 15 keV.

During the interaction, the photon transfers part of its energy to the electron, causing it to be ejected from the N-shell. The remaining energy is carried by the scattered photon.

To determine the energy of the scattered photon (Es), we can use the conservation of energy:

E₁ (initial photon energy) = Es (scattered photon energy) + Ee (energy carried away by the ejected electron) + Eb (binding energy)

Substituting the given values:

45 keV = Es + 15 keV + 0.3 keV

Simplifying:

Es = 45 keV - 15 keV - 0.3 keV = 29.7 keV

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The effective resistance of the Parallel circuit is 3 ohms.

option B.

In a parallel circuit, the sum of the currents through each path is equal to the total current that flows from the source.

The total resistance or effective resistance in a Parallel circuit with the following formula:

1/Rt = 1/R1 + 1/R2

where;

1/Rt = 1/4 + 1/12

1/Rt = (3 + 1 ) / 12

Rt = ( 12 ) / ( 4 )

Rt = 3 ohms

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Answer:

B. Energy

Explanation:

Sound is a kind of energy. In physics, sound is seen as anenergy that is generated through vibrations

Answer:

Energy

Explanation:

If the motorcyclist applies the front brake too hard, the front wheel may lock and the motorcycle may flip over, causing a dangerous situation.

When a motorcyclist applies the front brake too hard, the front wheel may lock up due to a loss of traction, causing the motorcycle to flip over and resulting in a hazardous scenario. This is known as a front wheel lockup, and it can occur if the motorcyclist is going too fast or if there is insufficient weight on the front wheel

When the front wheel of a motorcycle stops spinning abruptly and the motorcycle flips forward, it is known as a front wheel lockup. This occurs because the motorcyclist applies the front brake too hard, causing the front wheel to lose traction and lock up. When a motorcyclist applies the front brake too hard, the motorcycle's weight shifts forward and places more weight on the front wheel, causing it to lose traction and lock up.

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To convert g/cm³ to kg/m³, multiply the value in g/cm³ by 1000. For example, 2.5 g/cm³ is equivalent to 2500 kg/m³.

To convert grams per cubic centimeter (g/cm³) to kilograms per cubic meter (kg/m³), you can use the following conversion factor:

1 g/cm³ = 1000 kg/m³

To convert from g/cm³ to kg/m³, simply multiply the value in g/cm³ by 1000.

For example, let's say you have a density of 2.5 g/cm³. To convert it to kg/m³, you would do the following calculation:

2.5 g/cm³ * 1000 = 2500 kg/m³

So, 2.5 g/cm³ is equivalent to 2500 kg/m³.

Certainly! Density is a measure of how much mass is contained in a given volume. It is typically expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

The conversion from g/cm³ to kg/m³ involves scaling the density by a factor of 1000. This is because there are 1000 grams in a kilogram and 1 cubic meter is equivalent to 1,000,000 cubic centimeters.

When you convert from g/cm³ to kg/m³, you are essentially converting from a smaller unit (gram) to a larger unit (kilogram) and from a smaller volume (cubic centimeter) to a larger volume (cubic meter). This means that the resulting value in kg/m³ will be larger than the original value in g/cm³.

For example, if you have a material with a density of 0.75 g/cm³, to convert it to kg/m³, you would multiply by 1000:

0.75 g/cm³ * 1000 = 750 kg/m³

So, the density of the material is 750 kg/m³.

It's important to remember that when converting units, you need to consider the relationship between the units and the appropriate conversion factors. In this case, the conversion factor is based on the relationship between grams and kilograms (1000 grams = 1 kilogram) and the relationship between cubic centimeters and cubic meters (1,000,000 cubic centimeters = 1 cubic meter).

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Answer: 1.6 hours

Explanation: 40/1.6 = 25

Answer:

False

Explanation:

Answer:

convection because it's not a conductor nor does it have radiation.

The spectrum observed from the Sun (or any star) would exhibit an absorption spectrum. This is because the outer gaseous atmosphere of the star absorbs specific wavelengths of light, resulting in dark absorption lines in the spectrum.

In the cooler, lower-density outer atmosphere, where white light from the star travels, some atoms or molecules in the atmosphere absorb photons with particular energy. In the spectrum, these absorptions show up as black lines at specific wavelengths. The specific set of absorption lines that each element or molecule generates results in a distinctive pattern that can be used to identify the elements that are present in the star's atmosphere.

The absorption spectrum offers insightful data on the chemical make-up and physical characteristics of the star. Astronomers can ascertain the elements present, their abundances, and other characteristics like the temperature, pressure, and velocity of the star's atmosphere by examining the absorption lines.

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The toddler would travel a distance of 15 meters if they crawl at a rate of 0.75 m/s for 20 s.

Given:

Speed of toddler = 0.75 m/s

Time traveled = 20 s

Unknown:

Distance traveled

Equation used:

Distance = Speed x Time

Distance = 0.75 m/s x 20 s

Distance = 15 m

Therefore, the toddler would travel a distance of 15 meters if they crawl at a rate of 0.75 m/s for 20 s.

Given:

Speed of dragonfly = 4.2 m/s

Time traveled = 17 s

Unknown:

Distance traveled

Equation used:

Distance = Speed x Time

Distance = 4.2 m/s x 17 s

Distance = 71.4 m

Therefore, the dragonfly can travel a distance of 71.4 meters if it flies for 17 seconds at a speed of 4.2 m/s.

Given:

Distance traveled by the flying disk = 139 m

Average speed of the disk = 13 m/s

Unknown:

Time the disk remained in the air

Equation used:

Time = Distance ÷ Speed

Time = 139 m ÷ 13 m/s

Time ≈ 10.69 s

Therefore, the flying disk remained in the air for approximately 10.69 seconds if it traveled a distance of 139 meters at an average speed of 13 m/s.

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The hardness values were obtained for Al, Cu, and Al-Cu alloys. The tensile strength (in MPa) of each alloy can be determined by using the hardness-tensile strength correlation.

For Al-Cu alloys, the correlation is given by: σuts = 4.27 x HBRHV - 96.3, where σuts is the ultimate tensile strength (MPa), HB is the Brinell hardness, and HV is the Vickers hardness. The average hardness values for the Al, Cu, and Al-Cu alloys were 47.5 HRB, 61.5 HRB, and 90.3 HV, respectively.

Using the above equation for Al-Cu alloys: σuts = 4.27 x HBRHV - 96.3 = 4.27 x 90.3 - 96.3 = 302 MPa.

Therefore, the tensile strength of the Al-Cu alloy is 302 MPa.

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To find the expression for the force as a function of Δx, we need to use the work-energy principle, which states that the work done by a force is equal to the change in kinetic energy of the object. In this case, we have W(Δx) = aΔx + b(Δx)^3, which represents the work done by the force.

To find the force as a function of Δx, we can differentiate the work equation with respect to Δx. This gives us the expression for the force as follows: F(Δx) = dW/d(Δx) = a + 3b(Δx)^2

So, the expression for the force as a function of Δx is F(Δx) = a + 3b(Δx)^2. This equation shows that the force is a function of Δx, and it depends on the values of a and b. The force increases with the square of Δx, which means that it is a non-linear function.

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After canceling out the common units, we can observe that the friction factor (f) is dimensionless, meaning it has no units.

The formula that has been provided for head loss through a straight pipe is commonly known as the Darcy-Weisbach equation, which relates the head loss to the flow rate and properties of the pipe. The friction factor f is a measure of the resistance to flow through the pipe and is determined by the roughness of the pipe wall and the Reynolds number of the flow. A detailed explanation of how to calculate the friction factor is beyond the scope of this answer, but it involves solving the Colebrook-White equation, which is an empirical relation derived from experimental data. The friction factor is an important parameter in many fluid mechanics problems, as it affects the pressure drop and energy losses in the system.

The unit of the friction factor (f) in the equation for head loss (h) through a straight pipe can be determined from the

equation h = (4 * f * l * u²) / (2 * g * d). In this equation, h is the head loss (m), l is the pipe length (m), u is the average flow velocity (m/s), g is the gravitational acceleration (m/s²), and d is the pipe diameter (m).

To find the unit of friction factor (f), we need to rearrange the equation to solve for f. This can be done by multiplying both sides by (2 * g * d) and then dividing by (4 * l * u²):

f = (h * 2 * g * d) / (4 * l * u²)

Now, we can substitute the units of each variable into the equation:

f = [(m) * (m/s²) * (m)] / [(m) * (m/s)²]

Thus, after canceling out the common units, we find that the friction factor (f) is dimensionless, meaning it has no units.

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Answer:

\(\huge\boxed{\sf V_f=45.2 \ m/s}\)

Explanation:

Initial velocity = \(V_i\) = 6 m/s

Time = t = 4 sec

Acceleration due to gravity = g = 9.8 m/s²

Final velocity = \(V_f\) = ?

\(v_f=v_i+gt\)

Put the givens in the formula

\(V_f=6 +(9.8)(4)\\\\V_f=6+39.2\\\\V_f=45.2 \ m/s\\\\\rule[225]{225}{2}\)

Happy Holidays!

Recall that:

Impulse = Change in Momentum = mass × change in velocity

Since both cars are identical and have the same initial velocity of 60 mph, them breaking to a stop means that they both experience the same change in velocity.

Thus, both of the cars' impulses are equal.

The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.

The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.

It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.

They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.

Haley noticed a small spot on her skin that turned out to be skin cancer.

Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.

Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.

The treatment most likely to use is Superficial External bean Radiation Therapy.

Then the correct option is B.

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