Which one of the following statements concerning a convex mirror is true?
A. The image a convex mirror produces is closer to the mirror than it would be in a plane mirror for the same object distance.
B. A convex mirror produces a larger image than a plane mirror does for the same object distance.
C. A convex mirror can form a real image.
D. A convex mirror must be spherical in shape.
E. The image produced by a convex mirror will always be inverted relative to the object.

Answer:

I'm pretty sure the answer to this question is c.

The correct answer to the question is option C) velocity. A stream's turbulence is strongly influenced by its velocity. Turbulence refers to the irregular and unpredictable flow of water, which is often characterized by vortices and eddies.

The velocity of the stream determines the amount of kinetic energy available in the water, which can affect the degree of turbulence. Higher velocities lead to more turbulent flow, while lower velocities result in a smoother and more laminar flow. Additionally, other factors such as the stream's shape and the roughness of its bed can also affect turbulence. For instance, if the stream bed is rough or has obstacles, it can cause more turbulence as the water flows over and around the obstacles. On the other hand, a smooth stream bed would lead to a more stable flow. Understanding the factors that affect a stream's turbulence is essential for activities such as river management, flood control, and hydroelectric power generation, among others.

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The distance the wave traveled between the two-point is the path difference. The path difference will be 2200 nm and 3 orders of bright lines do this equal red light with a wavelength of 650 nm.

A diffraction grating is a type of optical instrument obtained with a continuous pattern. The pattern of the diffracted light by a grating depends on the structure and number of elements present.

The equation of diffraction grating is given as

\(\rm n\lambda=dsin\phi\\\\\rm n\lambda=0.50\times10^{-3}\times sin(0.25) \\\\ n\rm \lambda=2.18\times10^{-6} \;m \\\\\rm n\lambda=2200\;nm\)

Hence the path difference will be 2200 nm.

\(\rm n\lambda=2200\;nm \\\\\rm n\times650=2200 \\\\\rm n=3.38\)

n= 3

Hence 3 orders of bright lines do this equal red light with a wavelength of 650 nm.

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Given the amount of work done in pushing the car over the given distance, the amount of force applied is 2400 Newtons.

Work done is simply defined as the energy transfer that takes place when an object is either pushed or pulled over a certain distance by an external force. It is expressed as;

W = F × d

Where f is force applied and d is distance travelled.

Given that;

W = F × d

60000kgm²/s² = F × 25m

F = 60000kgm²/s² ÷ 25m

F = 2400kgm/s²

F = 2400N

Given the amount of work done in pushing the car over the given distance, the amount of force applied is 2400 Newtons.

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Answer:

298800 m

Explanation:

\(v = \frac{d}{t} \)

V=speed

d=distance

t=time

\(d = vt\)

Change hours to seconds

It will be 36000s

8.3m/s * 36000s

=298800m

The rate at which area of one side of the  circular metal griddle is changing is determined as 0.47 cm²/min.

The rate at which the area of the metal is changing is calculated as follows.

Mathematically, the formula for area of a circular metal griddle is given as;

A = πr²

where;

The formula for the area of the circular metal griddle can be given in terms of diameter.

A = πd²/4

The rate of change of the area is calculated as follows;

dA/dt = ( ²/₄ )πd (dd/dt)

dA/dt = ( ¹/₂ )πd (dd/dt)

where;

dA/dt = ( ¹/₂ )πd (dd/dt)

dA/dt = ( ¹/₂ )π (30 cm)(0.01 cm/min)

dA/dt = 0.47 cm²/min

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In the column, the red (water) substance has a less density than the black (corn syrup) substance.

The measure of how densely a material is packed together is called density. As the mass per unit volume, it has that definition. Density Numeral: D or The density is calculated using the following formula: = m/V, where m is the object's mass and V is its volume.

The relationship between a substance's mass and the amount of space it occupies is known as its density (volume). The density of a substance is determined by the mass, size, and arrangement of its atoms. Density is calculated by dividing a substance's mass by its volume.

From the image, you can see that the black section is thicker and the red is a little bit light.

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Answer:

It's 31

Explanation:

add 15 and 16

We are given that A uniform 240-g meter stick can be balanced by a 240−g weight placed at the 100−cm mark. We have to determine the correct location of the fulcrum.

Let us assume that the location of the fulcrum be x cm away from the 100-cm mark.Now, as per the given statement, both sides of the meter stick must be balanced.We know that the product of the force and the distance from the fulcrum to the force is constant on each side of the fulcrum.Force × Distance from the fulcrum to the force = ConstantLet the fulcrum be placed at the point marked as x cm from the 100-cm mark.∴ (240 g) (100 cm − x cm) = (240 g) (x cm)10000 − 240x = 240x240x + 240x = 10000x = 10000/480x = 20.8333 cm

Thus, the correct answer is 100 cm - x = 100 cm - 20.8333 cm = 79.1667 cm≈ 75 cm

Hence, option c is the correct answer.

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The lab report is divided into eight sections:

Title, Abstract, Introduction, Methods and Materials, Results, Discussion, Conclusions, References.

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Answer:

Increase the number of coils.

Explanation:

By increasing the number of coils we can increase the electromagnet.

Answer:

\(\boxed {\boxed {\sf 3.335 \times 10^{-11} \ N}}\)

Explanation:

We are asked to find the force of gravity between 2 objects. The following formula is used to calculate the attractive force of gravity:

\(F_g= \frac{Gm_1m_2}{r^2}\)

G is the universal gravitational constant or 6.67 × 10⁻¹¹ N*m²/kg². 1 mass is 1 kilogram and the other mass is 2 kilograms. R is the distance between the 2 objects, or 2 meters.

Substitute the values into the formula.

\(F_g= \frac {(6.67 \times 10^{-11} \ N*m^2/kg^2)(1 \ kg)(2\ kg)}{( 2 \ m)^2}\)

Multiply the numerator. The units of kilograms squared cancel.

\(F_g= \frac {(6.67 \times 10^{-11} \ N*m^2/kg^2)(2 kg^2)}{(2 \ m)^2}\)

\(F_g= \frac {(6.67 \times 10^{-11} \ N*m^2)(2 )}{( 2 \ m)^2}\)

\(F_g= \frac {(1.334 \times 10^{-10} \ N*m^2)}{ (2 \ m)^2}\)

Solve the exponent in the denominator.

\(F_g =\frac {(1.334 \times 10^{-10} \ N*m^2)}{ 4 \ m^2}\)

The units of meters squared cancel.

\(F_g =\frac {(1.334 \times 10^{-10} \ N)}{ 4}\)

\(F_g=3.335 \times 10^{-11} \ N\)

The force of gravity between the fruit is 3.335 × 10⁺¹¹ Newtons.

\(given \: the \: length \: of \: one \: side \: of \: a \: cube \: \\ = 2cm \\ so \: we \: know \: the \: volume \: of \: a \: cube \: = {side}^{3} \\ so \: the \: volume \: of \: the \: cube \: here \: = {2}^{3} {cm}^{3} = \: 8 {cm}^{3} \\ we \: know \: density \: of \: a \: substance \: = \: \frac{mass}{volume} \\so \: mass \: = density \times volume \\ density = 6 \frac{g}{ {cm}^{3} } \\ volume \: = 8 {cm}^{3} \\ so \: \: mass \: = (6 \times 8)( {cm}^{3} \times \frac{g}{ {cm}^{3} }) \\ 48gram \: (ans) \)

Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level. The nature and behavior of matter and energy at that level is sometimes referred to as quantum physics and quantum mechanics.

I LOVE THE Quantum Theory

Hope this helps!

The optimal angle to maximize the distance for a cannonball shot from the ground with no friction is 45 degrees.

Let's consider a cannonball shot from the ground at an angle θ from the horizontal with a speed v. We can decompose the initial velocity vector into its horizontal and vertical components.

The horizontal component of the velocity (v_x) is given by:

v_x = v * cos(θ)

The vertical component of the velocity (v_y) is given by:

v_y = v * sin(θ)

For the horizontal position, the cannonball will travel with a constant speed (v_x) horizontally for the entire duration of its flight. The time of flight can be calculated by considering the vertical motion.

In the vertical direction, the ball experiences a downward acceleration due to gravity, which is approximately 9.8 m/s². The initial vertical velocity (v_y) and the acceleration (g) allow us to calculate the time of flight (t) using the following equation:

v_y = g * t

Solving for t:

t = v_y / g

Now, we can find the horizontal distance traveled by the cannonball during the time of flight. The distance traveled (d) is given by the horizontal velocity (v_x) multiplied by the time of flight (t):

d = v_x * t

= (v * cos(θ)) * (v * sin(θ) / g) [substituting v_x and t]

To find the angle θ that maximizes the distance, we need to differentiate the distance equation with respect to θ and set the derivative equal to zero:

d' / dθ = 0

Differentiating the distance equation with respect to θ:

d' / dθ = (v / g) * [(cos(θ))^2 - (sin(θ))^2]

Setting d' / dθ equal to zero:

(v / g) * [(cos(θ))^2 - (sin(θ))^2] = 0

Since (cos(θ))^2 - (sin(θ))^2 = cos(2θ), we have:

(v / g) * cos(2θ) = 0

This equation is satisfied when cos(2θ) = 0. Solving for θ:

2θ = π/2

θ = π/4

Therefore, the optimal angle to maximize the distance is θ = 45 degrees.

The optimal angle to maximize the distance traveled by a cannonball shot from the ground, assuming no friction, is 45 degrees from the horizontal. This means that firing the cannonball at an angle of 45 degrees will result in the maximum horizontal range.

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Main Answer(final answer)- work done by julie is zero

Supporting answer- The work done by a force is defined as the product of the force's component in the direction of displacement and the magnitude of displacement. Formula. Work can be calculated by multiplying Force by Distance in the force's direction, as shown below. W = F × d.

Body of solution- as Julie walking at constant speed, net work done by her is zero.

Forces acting on suitcase are

1. Gravitational force

2. Force applied by Julie

As gravitational force is perpendicular to displacement, work done by gravity is zero

As work done by Julie and gravity are both zero

final answer -Hence work done by julie is zero

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It is most likely that the pressure is measured in atmospheres, the volume in liters, the number of moles in moles, and the temperature in Kelvin.

In the ideal gas law, the gas constant (R) is represented by different values depending on the units used. The value of 0.0821 L·atm/mol·K is one of the commonly used values for R when pressure is measured in atmospheres (atm), volume in liters (L), and temperature in Kelvin (K).
To determine what is most likely true about the variables in the ideal gas law, we need to look at the equation:

PV = nRT

- P represents the pressure of the gas in atmospheres
- V represents the volume of the gas in liters
- n represents the number of moles of gas
- R represents the gas constant
- T represents the temperature of the gas in Kelvin

Since the given value of the gas constant is 0.0821 L·atm/mol·K, it suggests that the variables in the ideal gas law are likely to be measured in the corresponding units (atm, L, mol, and K).

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Answer:

I think the answer to num.1 is A and the answer to num.2 is A also

Answer:

i think is

1. A

2. C

espero que salgas bien

Answer:

B: Greatest, A: Second greatest, C: Second geratest.

Explanation:

We can calculate the heat of fusion of a material (ΔHfus), which is the heat required to melt 1 kg of material, using the following expression.

ΔHfus = Q/m

where,

Material A

ΔHfus = 200 J/4 kg = 50 J/kg

Material B

ΔHfus = 300 J/5 kg = 60 J/kg

Material C

ΔHfus = 300 J/6 kg = 50 J/kg

Then, considering the heats of fusion,

B: Greatest, A: Second greatest, C: Second greatest.

Surviving on Enceladus would require protective suits, advanced heating systems, sustainable food/water/oxygen sources, efficient recycling methods, and utilization of local materials for construction and energy generation to overcome challenges such as low gravity, lack of atmosphere, extreme cold temperatures, and limited resources.

Enceladus, one of Saturn's moons, presents an intriguing destination for exploration due to its subsurface ocean and potential for harboring life. Surviving on Enceladus would require addressing several challenges. Firstly, the moon's low gravity and lack of atmosphere would necessitate protective suits to counter the absence of atmospheric pressure and shield against radiation.

The extreme cold temperatures on Enceladus, reaching as low as -330 degrees Fahrenheit (-201 degrees Celsius), would require advanced heating systems and insulated habitats to maintain a habitable environment. Additionally, ensuring a sustainable source of food, water, and oxygen would be crucial, possibly achieved through hydroponics systems and advanced life support technologies.

Explorers would also need to address the limited availability of resources by developing efficient recycling methods and utilizing local materials for construction and energy generation. Despite these challenges, the potential for scientific discoveries and the search for extraterrestrial life would make the journey to Enceladus worthwhile.

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Momentum is never created or destroyed. It's conserved. The total amount after a collision is the same as it was before the collision.

In this scenario, the total is 10 kg-m/s before the collision, so it's going to be 10 kg-m/s after.

Ball 2 has 4 kg-m/s, so Ball 1 has the other 6 kg-m/s of momentum.

Answer:

20 if the anwser u just gotta do length times wength

Answer: 6.4

Explanation:

Wave B will be louder than wave A.

Let the amplitude of wave A be a1 and the amplitude of wave B be a2.

Similarly, let the loudness of wave A be L1 and the loudness of wave B be L2.

We know,

\(\frac{L1}{L2}\) = \(\frac{a1^{2} }{a2^{2} }\)

By substitution we see:

\(\frac{L1}{L2}\) = \(\frac{3^{2} }{4^{2} }\)

We get:

\(\frac{L1}{L2}\) = \(\frac{9}{16}\) .

Thus we see that the loudness of wave A is 9Hz while that of wave B is 16Hz. So we conclude that wave B is louder than wave A.

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Answer:

answer is (c) density is not a characteristics of vibration.

hope it is right answer for it!!

The two basic defenses in basketball are man-to-man, sometimes referred to as person-to-person in respect for the rise of women's basketball, and zone. Each basic defense has a number of variations.

Answer:

c. 80%

Explanation:

Given;

load raised by the machine, L = 360 N

distance through which the load was raised, d = 0.2 m

effort applied, E = 50 N

distance moved by the effort, e = 1.8 m

The efficiency of the machine is calculated as follows;

\(Efficiency = \frac{ 0utput \ work }{1nput \ work} \times 100\% \\\\Efficiency = \frac{Load \ \times \ distance \ moved \ by \ load }{Efort \ \times \ distance \ moved \ by \ effort} \times 100\%\\\\Efficiency = \frac{360 \times 0.2}{50 \times 1.8} \times 100\%\\\\Efficiency =80\%\)

Therefore, the efficiency of the machine is 80%

Answer:

16 to 25 degrees f

Explanation:

Answer:

what??!?!? the question is unclear, what exactly are you asking?

Answer:

maybe if there is an image you want to post i could help you? this is unclear. But that's okay, hope your having an okay day :)

Explanation:

Answer:

V₂ = 23.18 L

Explanation:

Given that,

Initial volume of a balloon, V₁ = 8.5 L

Initial pressure, P₁ = 150 kPa

We need to find new volume when the pressure drops to 55 kPa.

It is based on the concept of Boyle's law. The mathematical form of the Boyle's law is given by :

\(P_1V_1=P_2V_2\\\\V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{150\times 8.5}{55}\\\\=23.18\ L\)

So, the new volume is 23.18 L.