which statement if wrong regarding slip i. initial slip increases strength of a material ii. slip account for the elastic deformation iii. slip is the motion of a crystal plane iv. slip causes the plastic deformation

Answer:

the heart

Explanation:

length time width is hearts for captain americas sheild sirs iro

Answer:

because if it's won't be wider so the building have a chance to be distracted in any distuction

that's why they are made wider..

The wavelength of the sound waves with a constant frequency of 250 Hz traveling through air at STP (Standard Temperature and Pressure) is 1) 0.76 m.

The speed of sound in air at STP is approximately 343 m/s. The relationship between wavelength (λ), frequency (f), and speed of sound (v) is given by the formula:

v = λ * f

Rearranging the formula to solve for λ, we have:

λ = v / f

Substituting the values, we get:

λ = 343 m/s / 250 Hz = 1.372 m

Rounding to the nearest tenth, the wavelength is approximately 0.76 m. Therefore, option 1) 0.76 m is the correct answer.

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Measurement means weight, size, length, or capacity of something.

Answer:

Measurement is the length, weight, size, quantity, value, or amount of something.

Answer:

The force will have to increase

Explanation:

Since Juan has upgraded from a sports car to a large truck, based on Newton's second law of motion, the force needed to keep the truck going at the same speed will have to increase.

 According to Newton's second law "the force on an object is equal to the product of its mass and acceleration".

       Force  = mass x acceleration

A truck has a larger mass compared to a sports car.

By virtue of this, to make sure both automobiles attain the same speed, the force powering them to accelerate must be the same.

 Therefore, the force from the engine must increase.

Answer: ​ It is an insidious, self-perpetuating problem that affects generations of families. ... Society can intervene to increase host resistance and mitigate poverty's negative ... prevention, quality, potentially avoidable hospital use, and health outcomes. ... These findings point out that low-income status does not have to determine poor

Explanation:

Part(a) The equation for the loop is 0 −1−(R1 +R2)I2+(R3+R2)I3=0

Part(b) The current through the bottom branch 13 is 0.75 A.

(a) This equation is found by applying the loop rule, which states that the sum of voltage drops around a loop is equal to zero. To find the equation, we start at the point, and move clockwise around the loop. At each point, we add the voltage drop of the component connected between that point and the previous point. We then substitute the component values into the equation.

For example, the voltage drop across R1 is equal to I2 * R1. In this equation, I2 and I3 are the currents through R2 and R3 respectively.

(b) To calculate this, we need to use Ohm's Law, which states that the voltage across a resistor is equal to the current through the resistor multiplied by the resistance.

First, we need to calculate the total resistance of the circuit.

       R total = R_1 + (1/2)*R_2 + R_3

                    = 0.5 + (1/2)*2.5 + 0.5

                    = 2.5 Ω

Now, we can use Ohm's Law to calculate the current through the bottom branch.

             I 13 = V/R

                     = (12-0.5)/2.5

                     = 0.75 A

Therefore, the current through the bottom branch 13 is 0.75 A.

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Answer:

The pressure at the depth is 201775 Pa.

Explanation:

Depth, h = 10 m

density, d = 1025 kg/m3

atmospheric pressure, Po = 101325 Pa

The total pressure at the depth is

P = Po + h d g

P = 101325 + 10 x 1025 x 9.8

P = 101325 + 100450

P = 201775 Pa

Answer:

I don't know sorry' please

The Ksp value of MX is 3.28 × 10^-11.

The Ksp value of PbBr2 is 1.51 × 10^-5.

The Ksp value of CaF2 is 3.47 × 10^-11.

Explanation:-

The solubility product constant, Ksp is defined as the product of the concentrations of the ions of a sparingly soluble salt at equilibrium. It is denoted by the symbol Ksp.

The solubility product constant (Ksp) can be calculated from the molar solubility of the compound.

For instance, to calculate the Ksp value for the given compounds; MX, PbBr2 and CaF2, we can use the formula below:

MX (s) ⇌ M+ (aq) + X- (aq)

Ksp = [M+][X-]

Given molar solubility (s) = 5.72×10−6 M

Ksp = s^2 = (5.72×10−6)² = 3.28 × 10^-11

The Ksp value of MX is 3.28 × 10^-11.

PbBr2 (s) ⇌ Pb2+ (aq) + 2Br− (aq)Ksp = [Pb2+][Br−]²

Given molar solubility (s) = 1.05×10−2 M

Ksp = s^3 = (1.05×10−2)^3 = 1.51 × 10^-5

The Ksp value of PbBr2 is 1.51 × 10^-5.

CaF2 (s) ⇌ Ca2+ (aq) + 2F− (aq)

Ksp = [Ca2+][F−]²

Given molar solubility (s) = 3.32×10−4 M

Ksp = s^3 = (3.32×10−4)^3 = 3.47 × 10^-11T

The Ksp value of CaF2 is 3.47 × 10^-11.

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Answer:The density of a substance is defined as its mass per unit volume. So we can calculate the density of silver using the given values:

density = mass / volume

Substituting the given values, we get:

density = 21 g / 2 cm^3

Simplifying, we get:

density = 10.5 g/cm^3

Therefore, the density of the piece of silver is 10.5 g/cm^3, which is option D.

Explanation:

Answer:

The force of friction that the driveway exerts on the ladder ≈ -176.03 N

Please see attached force diagram created with MS Visio

Explanation:

The height of the house painter above the ground = 3.00 m

The length of the ladder = 5.00 m

The height above the ground at which the ladder leans on the wall = 4.70 m

The weight of the painter = 676 N

The weight of the ladder = 107 N

The angle of inclination of the ladder, arcsin(4.7/5) ≈ 70.05°

For equilibrium, the sum of moments at a point, ∑M = 0

Taking moment about point A gives;

4.7 × R = 107 × 2.5 × cos(arcsin(4.7/5)) + 676 × 3.0/(tan(arcsin(4.7/5)))

R = (107 × 2.5 × cos(arcsin(4.7/5)) + 676 × 3.0/(tan(arcsin(4.7/5))))/4.7 ≈ 176.03

The reaction force at the top of the ladder, R ≈ 176.03 N

For equilibrium, we have;

The sum of the horizontal forces, ∑Fₓ = 0

The reaction at the top of the ladder, R + The force of friction that the driveway exerts on the bottom of the ladder, \(F_R\) = 0

R + \(F_R\) = 0

∴ R = \(-F_R\)

R ≈ 176.03 N = \(-F_R\)

∴ \(F_R\) = -176.03 N

Therefore, the force of friction that the driveway exerts on the bottom of the ladder, \(F_R\) ≈ -176.03 N (acting away from the wall).

The minimal insulation that a conductor has to have to still be able to carry current at 71 C ambient temperature is 90°.

The maximum temperature rating of the conductor, the kind of insulation used, the current carrying capability, and the environment in which the conductor will operate are all variables that affect the insulation rating needed for a conductor to carry current safely.

In general, a conductor's insulation grade should be selected to offer a reasonable safety buffer over the highest scheduled operating temperature.

For instance, it could be essential to utilize insulating material rated for a greater temperature, such as 105°C or more, if a conductor is anticipated to run at a maximum temperature of 90°C.

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Answer:

1.46755 Joules

Explanation:

Applying,

E = 1/2ke²......................... Equation 1

Where E = Elastic potential energy of the spring, k = spring constant, e = extension

From the question,

Gieven: k = 559 N/m, e = (0.14-0.07) meters = 0.07 meters

Substitute these values into equation 1

E = 1/2(599×0.07²)

E = 2.9351/2

E = 1.46755 Joules

The acceleration of julie and susie is a = 1.250 x 10³m/s².

Given in the question,

F = 20,000N

mass = 16kg

acceleration = ?

Using formula,

Force = mass x acceleration

20000 N = 16 kg x a

a = F / m

a = 20000 / 16

a = 1.250 x 10³m/s²

A change that can alter an object's motion is known as a force. A mass-containing object's velocity can change, or accelerate, as a result of a force. Intuitively, a push and / or a pull can also be used to describe force. Being a vector quantity, a force has both magnitude and direction. Two main categories into which forces can be divided are Contact Forces and Non-Contact Forces.

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Answer:

18.78 m/s.

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 50 kg

Initial velocity (u) = 0 m/s

Height (h) of cliff = 18 m

Acceleration due to gravity (g) = 9.8 m/s²

Final velocity (v) =?

The velocity with which the diver reach the water can be obtained as follow:

v² = u² + 2gh

v² = 0² + (2 × 9.8 × 18

v² = 0 + 352.8

v² = 352.8

Take the square root of both side

v = √352.8

v = 18.78 m/s

Thus, the diver will reach the water with a velocity of 18.78 m/s.

So, if you transfer the same amount of heat Q to each cube, the aluminum cube will have a higher final temperature than the iron cube.

Temperature is a measure of the average thermal energy of the particles in a system. It is a scalar quantity that reflects the amount of heat energy present in a substance, and it is typically measured in units of degrees Celsius (°C), Kelvin (K), or Fahrenheit (°F). Temperature is related to the kinetic energy of the particles in a system, which is the energy associated with their motion. As the temperature of a system increases, the kinetic energy of its particles also increases, leading to faster and more chaotic motion. Conversely, as the temperature decreases, the kinetic energy of the particles decreases, leading to slower and less chaotic motion.
Here,

The final temperature of the two cubes will depend on the specific heat capacity of each material. The specific heat capacity of a material is the amount of heat energy required to raise the temperature of a unit of mass of that material by 1 degree Celsius.

Aluminum has a higher specific heat capacity than iron, meaning it requires more heat energy to raise its temperature by the same amount.

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The position of the person from the mirror is d = 2.10 m. When you stand in front of a flat mirror and focus a camera on your image, the camera will focus at twice the distance between you and the mirror.

This is because the image formed by a flat mirror is virtual and appears to be located behind the mirror at the same distance as the object in front of the mirror.

The distance between you and the mirror is d.

The distance between you and your image is d.

The distance between the camera and your image is 4.20 m.

d = d

d + d = 4.20 m

2d = 4.20 m

d = 2.10 m

Hence, the position of the person in the mirror is

d = 2.10 m

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Answer:

The runner's acceleration was \(1\ m/s^2\)

Explanation:

Constant Acceleration Motion

It's a type of motion in which the velocity of an object changes by an equal amount in every equal period of time.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

\(v_f=v_o+at\)

Solving for a:

\(\displaystyle a=\frac{v_f-v_o}{t}\)

The runner speeds up from vo=5 m/s to vf=9 m/s in t=4 seconds, thus:

\(\displaystyle a=\frac{9-5}{4}\)

\(\displaystyle a=\frac{4}{4}=1\)

The runner's acceleration was \(1\ m/s^2\)

The quantity of heat required to raise the temperature of the water is approximately 35,500 J.

The quantity of heat required to raise the temperature of the water is calculated as follows;

H = mcΔθ

H = 100 x 4.18 x 85

H = 35,530 J

Thus, the quantity of heat required to raise the temperature of the water is approximately 35,500 J.

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When the ball reaches its maximum point, its top velocity is Its acceleration is downward and its velocity is upward.

Acceleration is the measure of how quickly a velocity varies. Usually, but not always, acceleration denotes a shift in speed. Because the origin of all its motion is altering, an object that travels in a circle while keeping its speed is also still traveling forward.

The equation a = v/t denotes acceleration (a), which is the velocity that changes (v) so over change in time (t).

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Answer:

C

Explanation:

The attractive force of their magnetic fields is greatest at the poles. Option B is correct.

Earth's magnetic field is similar to that of a bar magnet in that both have north and south poles. The magnetic field lines of both Earth and a bar magnet originate from the north pole and loop around to the south pole. The magnetic field lines are most concentrated and the attractive force is strongest near the poles of both Earth and a bar magnet.

At the poles, the magnetic field lines are densely packed and closely spaced, leading to a stronger magnetic force. This is why compass needles, which align with Earth's magnetic field, point towards the magnetic north pole.

The statement about electric current causing them to lose magnetism (option D) is not accurate. Electric current can actually create magnetic fields, as seen in electromagnets. Earth's magnetic field is generated by the movement of molten iron in its outer core, not by electric currents in the conventional sense.

In summary, option B is the correct answer as it accurately reflects the similarity in the distribution of magnetic field lines and the strength of the attractive force near the poles for both Earth and a bar magnet.

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The magnitude of the net force on the truck is 2070.5 N.

Frictional force is the force that opposes motion or attempted motion between two surfaces in contact. It arises as a result of the interlocking of irregularities on the surfaces in contact, and it acts in the direction opposite to the direction of motion or attempted motion.

Frictional force can be classified into two types: static friction and kinetic friction. Static friction is the force that prevents an object from moving when a force is applied to it, while kinetic friction is the force that opposes the motion of an object that is already in motion.

The normal force is equal to the weight of the truck, which can be calculated as:

weight = mass x gravity

where gravity is approximately 9.81 m/s^2.

So the weight of the truck is:

weight = 900 kg x 9.81 m/s^2 = 8829 N

Therefore, the normal force is:

normal force = weight = 8829 N

And the frictional force is:

frictional force = 0.5 x 8829 N = 4414.5 N

Next, we can find the net force on the truck by subtracting the force of friction from the force exerted by the car:

net force = 2345 N - 4414.5 N = -2070.5 N

Note that the negative sign indicates that the net force is in the opposite direction to the force exerted by the car, which makes sense since the truck is slowing down.

Finally, we can use Newton's second law to find the acceleration of the truck:

net force = mass x acceleration

-2070.5 N = 900 kg x acceleration

acceleration = -2.3 m/s^2

Again, the negative sign indicates that the truck is slowing down.

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The required spring constant k of a spring designed to bring a 1200-kg car to rest the car is 6490 N/m

The time period is the time taken by a total pattern of the wave to pass a point. Precise recurrence is rakish uprooting of any component of the wave per unit of time.

T = T = 2π√(m/k), where k = spring constant.

Given:

M=1200 kg is the mass.

96 km/h and 26.7 m/s are the initial speeds.

0 is the final speed.

Then,

When spring stop the car, final velocity will become zero.

By using formula

v = u + at

0 = 26.7 +(-9.8)t

t = 26.7/9.8 = 2.7 seconds

Now,

T = 2π√(m/k)

2.7 = 2(3.14)√(1200/k)

k = 6490N/m

Thus,the value of spring constant is 6490.

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The 950 W has higher resistance in the given situation.

The current flow is inversely correlated with resistance. If abnormally high, damaged conductors from osicorron or burning could be one of a number of potential causes. Overheating is a problem that is frequently connected to resistance because all conductors emit some amount of heat.

When all linked devices, whether in parallel or series, are considered, the equivalent resistance is the value at which the total resistance between them is calculated. A circuit is fundamentally constructed as either a parallel or series circuit. Electrical resistance, which is the amount of energy required to carry charges or current through your devices, is visible.

voltage , V = 120 V

Power , P = V 2 / R

where R​​​​​​ 1 = resistance

Now , when P  = 950 W

R 1 = V 2 / P = 120 2 / 950

R 1 = 15.157  .......... (2)

From equation (1) and (2) it is clear that Resistance R1 has ​​higher value .

Therefore, 950 W has higher resistance

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The force necessary to gain the velocity is 40 N.

The velocity gained by the object at the end of the second minute is 30 m/s.

F = mv/t

where;

F = (200 x 60)/(300)

F = 40 N

F = mv/t

Ft = mv

v = Ft/m

where;

v = (150 x 120)/(600)

v = 30 m/s

Thus, the force necessary to gain the velocity is 40 N.

The velocity gained by the object at the end of the second minute is 30 m/s.

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Object and image are 0 cm far apart .

The thin lens equation for an object distance "d_o" and image distance "d_i" with focal length "f" is:

1/d_o + 1/d_i = 1/f

The height of the image is given as 6.1 times the height of the object, so the magnification "m" is:

m = -d_i / d_o = h_i / h_o = 6.1

Rearranging the magnification equation, we have:

d_i = -m * d_o

Substituting the thin lens equation into the magnification equation:

d_i = -m / (1/d_o + 1/f)

Substituting the known values:

d_i = -6.1 / (1/d_o + 1/35)

Solving for d_o, we find:

d_o = (35 * 6.1) / (6.1 - 1) = 210 cm

The distance between the object and image is:

d = d_i - d_o = 210 - 210 = 0 cm

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Explanation:

Gravitational and elastic potential energy are both forms of mechanical energy, which is the sum of kinetic energy (the energy of motion) and potential energy (the energy of position or configuration).

Both gravitational and elastic potential energy are stored energy that can be converted into kinetic energy. For example, when a ball is held at a height above the ground, it possesses gravitational potential energy due to its position above the ground. If the ball is then released, it will fall to the ground and its potential energy will be converted into kinetic energy as it gains speed. Similarly, when a spring is compressed or stretched, it possesses elastic potential energy due to the work done to compress or stretch it. If the spring is then released, it will return to its original shape and its potential energy will be converted into kinetic energy as it moves.

Both gravitational and elastic potential energy depend on the mass of the object and the distance it is from a reference point. The greater the mass of the object and the farther it is from the reference point, the more potential energy it has.

Both gravitational and elastic potential energy are measured in joules (J) in the International System of Units (SI).

A student ties a lead cube to an oval-shaped block to prevent it from floating and immerses it in water density as part of a study to identify the sort of wood it is composed of.

The term "density" (also known as "volumetric mass density" or "specific mass") refers to a substance's mass per unit of volume. Although the Latin letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho).

According to legend, Archimedes shouted "Eureka!" as he rushed through the Sicilian streets. ("I've discovered it!") He had figured out what density was. Everyone has spent a significant amount of time in water during their life. The second thing Archimedes noticed was that he felt lighter floating.

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