describing light interactions with curved mirrors match the descriptions to the feature

Answer:

Below

Explanation:

All we need to do for this question is to plug in our values and solve!

      Force = mass x acceleration

      Force = 10 kg x 4 m/s^2

     Force = 40 Newtons or 40 N

If your teacher requires you to round to sig figs it would be :

    F = 4 x 10^1 N

Hope this helps!

you cant what done is done unless you start over. well think of a game it is its own dimension created by man for our entertainment but its not perfect there are glitches and modifications. but you are not the main character only one is and He gives us our own controler our brain. but if your athiest then ask me in the comments. i can explain both ways

Answer:

The world as we know it has three dimensions of space—length, width, and depth—and one dimension of time. But there's the mind-bending possibility that many more dimensions exist out there. According to string theory, one of the leading physics models of the last half-century, the universe operates with 10 dimensions. A dimension arises when a force is generated that allows movement into a new domain. Yes, I personally do believe in them for reasons I can't explain. Dimensional shifts were a phenomenon whereby an object or person is transported from one location to another via folded-space transport or shifted to a parallel universe on a different dimensional plane.

Explanation:

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When the mirror is moved so that the tree is between the focus point F and the mirror, the image appears shorter and on the same side of the mirror.This happens because of the phenomenon known as Reflection of Light. The mirror reflects light in such a way that it appears as if the light is coming from behind the mirror.

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Answer:

c

Explanation:

because the other would not make sense

Answer:

6.0cm

Explanation:

Given

focal length = 15.0cm

object distance = 10.0cm

Required

Image distance v

Using the formula

1/f = 1/u + 1/v

1/15 = 1/10+1/v

1/v = 1/15 + 1/10

1/v = 2+3/30

1/v = 5/30

v = 30/5

v = 6.0cm

Hence the image distance is 6.0cm

Answer:

6.0 (2 sig figs)

Explanation:

Is it General Physics? I had it and passed the Final Exam with an A in the beginning of July!

Explanation:

weight = m g

weight = 1 × 10

weight = 10 N

Formula: s = d/t

s = speed

d = distance

t = time

Solve using the values we are given.

s = 300/40

s = 7.5m/s

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Answer:

7.5 m/s

Explanation:

Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

(a) In order to find the angular speed of the wheels about the axle, we can first find the linear speed of the wheels using the formula v = rω, where v is the linear speed, r is the radius of the wheel (which is half the diameter), and ω is the angular speed.

We can convert 97 km/h to m/s by dividing by 3.6:97 km/h = (97/3.6) m/s ≈ 26.9 m/s The radius of the wheel is 76 cm / 2 = 38 cm = 0.38 m. Thus, the linear speed of the wheel is:

then the angular displacement of the wheels during this time is 30 revolutions, or 60π radians (since there are 2π radians in one revolution).

The final angular velocity of the wheels is 0, since they come to a stop. We can use the formula ω_f^2 = ω_i^2 + 2αθ, where ω_f is the final angular velocity.

We can solve for α:α = (ω_f^2 - ω_i^2) / 2θ = (0 - (70.79 rad/s)^2) / (2 × 60π rad) ≈ -0.025 rad/s^2 Therefore, the angular acceleration of the wheels is approximately -0.025 rad/s^2.(c)

r is the radius of the wheel, and θ is the angular displacement. We found θ in part (b) to be 60π radians, and we already know r (0.38 m).s = rθ = 0.38 m × 60π ≈ 71.67 m.

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Answer:

The heat flows into my body and I start with a warming feeling going down my throat as it starts there I get this warm feeling and I break out in a coldsweat from consuming a warm drink a cold drink will help cool me down

Explanation:

If drink something warm, you will be warm. If you drink something cool, you will cool down.

Answer:

For an object resting upon a non-accelerating surface, the normal force is equal to the ... Suppose that a person weighs 800 N and sits at rest upon a table. ... applying a downward force of 200 N. With the additional downward force of 200 N acting upon the person, the total upward force must be 1000 N.

Explanation:

The amount of work done by the car of mass 2-kg that travels 7 m is 70 J.

Work is said to be done when a force moves an object through a certain distance.

To calculate the amount of work done by the car, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the amount of work done by the car is 70 J.

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Answer:

1. Sound waves are changed into electrical

2. Radio waves are released by transmitter

by radios

3. Radio waves are converted to sound waves

Explanation:

Answer:

The person in front of me is right

Explanation:

There’s my proof

Answer:

a. same

b. less

c. less

Explanation:

you can use the position, time, acceleration equation

xf=xi + vi*t+(at^2)/2

you can say the final distance will greater for X than Y

using acceleration for gravity a=9.81m/s^2

a.  both X and Y will have the same acceleration due to gravity

b. to solve for final speed vf=vi+gt

since the initial velocity is 0 and X will take longer to fall, Y will hit the ground with less speed

c. as mentioned before, X will take longer to fall; therefore Y will have less time of descent.

Temperature is a measure of the average energy of particles in a substance is true.

Temperature is indeed a measure of the average energy of particles in a substance. Temperature reflects the kinetic energy of the particles, which is related to their random motion. In a substance, the particles are in constant motion, and their individual energies contribute to the overall temperature of the substance. A higher temperature indicates that, on average, the particles possess greater energy and are moving more vigorously. Conversely, a lower temperature signifies lower average energy and slower particle motion. Temperature is typically measured using various scales, such as Celsius, Fahrenheit, or Kelvin, and it serves as a fundamental parameter in thermodynamics and many other scientific disciplines.

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The age group that most commonly experiences fluid, electrolyte, and acid-base balance issues are the elderly population. This is because as we age, our body's ability to regulate these balances becomes less efficient, leading to an increased risk of dehydration, electrolyte imbalances, and acid-base disturbances.

Additionally, elderly individuals may have underlying health conditions or be taking medications that can further impact their fluid, electrolyte, and acid-base balances. However, it's important to note that these issues can affect individuals of any age group, and appropriate monitoring and management is important for maintaining overall health and wellbeing.

The age group most commonly experiencing fluid, electrolyte, and acid-base balance issues is the elderly population, typically those aged 65 and older. This is due to age-related physiological changes, such as decreased kidney function, reduced thirst sensation, and increased susceptibility to illnesses, which can contribute to imbalances in fluid, electrolyte, and acid-base homeostasis.

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ita called hematopoiesis

According to Kryder's Law, magnetic disk storage density is rising exponentially.

A magnetic substance, such as iron oxide, is deposited on magnetic disks. Hard disks made of rigid metal or glass and removable diskettes made of flexible plastic are the two sorts. Magnetic disks are round, flat pieces of metal or plastic that have an iron oxide coating on both sides.

Magnetic discs come in four different varieties: basic, planning, ring, and countersunk. All of these exist in a wide range of sizes, but their fundamental feature—that the diameter is always bigger than the depth—remains the same.

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The speed of the object at the time and applied force is 4.8 m/s.

The given parameters:

The speed of the object at the time and applied force is calculated by applying Newton's second law of motion as follows;

\(F = \frac{mv}{t} \\\\mv = Ft\\\\v = \frac{Ft}{m} \\\\v = \frac{6 \times 4}{5} \\\\v = 4.8 \ m/s\)

Thus, the speed of the object at the time and applied force is 4.8 m/s.

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Answer:

the answer is 1500 because of the internet

The bird has the most potential energy when it is at the highest point of its dive into the ocean.

1. Potential energy is the energy possessed by an object due to its position or state.

2. In this case, we are considering the potential energy of a bird diving into the ocean.

3. The potential energy of an object depends on its height and mass.

4. When the bird is at the highest point of its dive, it has the maximum potential energy.

5. As the bird dives deeper into the ocean, its height decreases, resulting in a decrease in potential energy.

6. At the moment the bird reaches the surface of the water, its potential energy is at its minimum, as it is at its lowest height.

7. The potential energy is converted into kinetic energy as the bird accelerates towards the water.

8. Kinetic energy is the energy possessed by an object due to its motion.

9. When the bird enters the water, its potential energy is completely converted into kinetic energy.

10. The bird continues to possess kinetic energy as it moves through the water.

11. Once the bird comes to a stop in the water, its kinetic energy is reduced to zero.

12. At this point, the bird's potential energy is also zero, as it is at its lowest height and not in motion.

13. Therefore, the bird has the most potential energy when it is at the highest point of its dive into the ocean.

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The frequency is 5.9 jules.

we have been given that the mass is equal to 2.4 kgs and the amplitude others 9.3 and returned to the power -2 m. Yeah. So he can write The angular frequency is two pi f. That is To buy into 3.8 Hz. That is equal to 23.87. Ready for a 2nd. Now to find the first concert,

we can write Omega Square. Um that is 23.87 reading perspective, but you didn't one second. We square this into 2.4 gauges. That is equal to 1,36, newtons per meter. How to find the total energy we laid half. Okay, A square that is equal to one by two and 21368.26 into 9.3 to 10 to the minus two squared. That is equality 5.9 Jules.

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Answer:

Approximately \(6\; {\rm Mpc}\) (assuming that \(H_{0} \approx 70\; {\rm km \cdot s^{-1} \cdot Mpc^{-1}}\).)

Explanation:

The speed at which a distant object moves away from the observer is known as recessional velocity.

By Hubble's law, the recessional velocity \(v\) of a distant galaxy would be proportional to the distance \(D\) from the observer:

\(v = H_{0}\, D\),

Where \(H_{0}\) is Hubble's Constant.

The value of Hubble's Constant varies over time. Assuming that \(H_{0} \approx 70\; {\rm km \cdot s^{-1} \cdot Mpc^{-1}}\). Rearrange Hubble's Law to find distance \(D\):

\(\begin{aligned}D &= \frac{v}{H_{0}} \\ &\approx \frac{407\; {\rm km\cdot s^{-1}}}{70\; {\rm km\cdot s^{-1} \cdot Mpc^{-1}}} \\ &\approx 6\; {\rm Mpc}\end{aligned}\).

The speed of waves on the string is 480 m/s when 60 cm string is tied at each end and vibrated at 400 hz a standing wave is produced with three antinodes.

To find the speed of waves on the string, we can use the formula:

v = f * λ

where:

v is the velocity of the wave,

f is the frequency of the wave, and

λ is the wavelength of the wave.

In this case, the frequency is given as 400 Hz.

To determine the wavelength, we can use the relationship between the length of the string and the number of antinodes in a standing wave.

A standing wave with three antinodes corresponds to a half-wavelength (λ/2) on the string.

Since the string is tied at each end, the length of the string (L) is equal to the full wavelength (λ).

Therefore, the wavelength is equal to twice the length of the string:

λ = 2 * L = 2 * 60 cm = 120 cm = 1.2 m (converting to meters)

Now we can calculate the velocity of the wave:

v = f * λ = 400 Hz * 1.2 m = 480 m/s

Therefore, the speed of the waves on the string is 480 m/s.

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According to  the given statement The force exerted by the string on the object is 2.7 N.

Any item travelling in a circular direction has a tangential velocity, which is its linear speed. On a turntable, a point in the centre moves less distance in a full rotation than a point near the outside edge.

Tangential velocity is determined by dividing the circle's circumference by the time required for one complete rotation: 2*pi*r/t. The formula V = w * r, where w (omega) is the angular velocity of the rotating object and r is the radius of the circle, also relates it to angular velocity.

m = 0.9 kg

r = 3m

v = 3m/s

Force (f) = mv2/r

Now ,putting values

force (f) = \(\frac{0.9 k g \times\left(3 \mathrm{~ms}^{-1}\right)^2}{3 \mathrm{~m}}\)

F = 2.7 N

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The statement that matches refraction is Waves bend while passing from one medium to another.

Generally, Your definitions for the terms reflection, diffraction, transmission, absorption, and refraction are correct.

Here are a few more examples to help solidify your understanding:

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The pair of quantities expressed in the same units of measure is B. work and energy. Work and energy are both expressed in the same units of measure.

Both work and energy are measured in joules (J) in the International System of Units (SI). Joules represent the amount of energy transferred or work done.

Work is defined as the transfer of energy that occurs when a force is applied to an object and causes it to move in the direction of the force. The work done on an object is equal to the force applied multiplied by the distance over which the force is exerted. The unit of work, joules, represents the amount of energy transferred.

Energy, on the other hand, is the ability to do work or transfer heat. It exists in various forms, such as kinetic energy (energy of motion), potential energy (energy stored due to position), and thermal energy (energy associated with temperature). Energy is also measured in joules.

Friction and weight, mentioned in option A, are not expressed in the same units of measure. Friction is a force and is typically measured in newtons (N), while weight is a force caused by gravity and is also measured in newtons.

Therefore, the pair of quantities expressed in the same units of measure is B. work and energy.

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U₂ = 0 V. The lamp (L₂) is short circuited, meaning that there is no resistance between its terminals. As such, the voltage across its terminals must be zero.

Resistance is a concept in physics that measures the opposition to the flow of electric current, heat, light, sound, or any other form of energy or matter. It is the measure of how much an object, material, or system resists the flow of electric current, heat, light, sound, or any other form of energy or matter.

a) U₂ = 0 V. The lamp (L₂) is short circuited, meaning that there is no resistance between its terminals. As such, the voltage across its terminals must be zero.

b) U₁ = 12 V. Since the generator is providing a constant voltage of 24 V across its terminals, the voltage across the terminals of (L₁) will be half of this, i.e. 12 V. As the lamps are identical, the current I' through the circuit will also be 0.6 A.

c) (L₁) may burn out due to the large amount of current it is carrying. If the current is too high, it may exceed the rated capacity of the lamp and lead to its failure.

d) (L₁) does not burn out because the circuit includes a fuse. The fuse is designed to break the circuit in the event of an excessive current, thus protecting the lamp from burning out. When the fuse blows, the circuit is broken and the lamp will be off.

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Based on the given information, Runner A has a higher velocity than Runner B.

Velocity is defined as the rate of change of displacement with respect to time. It can be calculated by multiplying the stride length by the stride rate.

For Runner A, the stride length is 3.1 m and the stride rate is 2.7 s^(-1). Therefore, the velocity of Runner A is 3.1 m * 2.7 s^(-1) = 8.37 m/s.

For Runner B, the stride length is 2.3 m and the stride rate is 3.5 s^(-1). Therefore, the velocity of Runner B is 2.3 m * 3.5 s^(-1) = 8.05 m/s.

Comparing the velocities, we can see that Runner A has a higher velocity (8.37 m/s) compared to Runner B (8.05 m/s). Thus, the correct answer is d. Runner A had a higher velocity.

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Answer: the material that is most likely to get the warmest when placed in the Sun is yellow pebbles. Therefore correct option is D.

Explanation:

The material that is most likely to get the warmest when placed in the Sun is D) yellow pebbles.

This is because the color of a material affects how much sunlight it absorbs. Darker colors tend to absorb more light and heat than lighter colors, which reflect more light. Yellow is a relatively dark color, so yellow pebbles will absorb more sunlight and get warmer than the other options.

White cement and beige sand are lighter colors, so they will reflect more sunlight and absorb less heat. Brown mulch is a darker color than cement and sand, but still not as dark as yellow pebbles, so it will absorb less sunlight and heat than yellow pebbles.

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