a convex spherical (diverging) mirror with a focal length of 25 cm has a 4.0 cm tall object placed 100 cm in front of it. what is the position of the image relative to the mirror?

To find the characteristics of the wave, we need to use the wave equation:

v = λf

where v is the speed of the wave, λ is the wavelength, and f is the frequency of the wave.

We are given that the wavelength is 8.0 cm and the speed is 4.0 cm/s.

So,

v = λf

4.0 cm/s = 8.0 cm × f

Solving for f, we get:

f = 0.5 Hz

Now, we can find the period (T) of the wave using the formula:

T = 1/f

T = 1/0.5 Hz

T = 2 seconds

Therefore, the characteristics of the wave are:

wavelength = 8.0 cm

speed = 4.0 cm/s

frequency = 0.5 Hz

period = 2 second

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As long as the applied stress is removed, a material that is linearly elastic experiences stress and strain that are directly proportional within the elastic limit.

In a material that is linearly elastic, the Young's modulus (E), stress, and strain are all related by the equation you supplied, E =. Here is a quick definition of each phrase:

(E) Young's modulus It is a way to gauge how hard or stiff a material is. Within the elastic limit of the material, it indicates the stress to strain ratio. The stiffer the material, the higher the Young's modulus.

Stress (): The force exerted to a material's surface area is called stress. The internal resistance of a material to deformation under an applied force is measured by stress.

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Answer:  If one billiard ball hits another, the second will move with the same force as the first.

A child wants to jump to climb a tree (reaction), he must push the ground to propel himself (action).

A man deflates a balloon; the force with which the air comes out causes the balloon to move from one side to the other.

Explanation:

-Hitting A Wall

-Rowing a boat

-Walking

Explanation:

1.If you hit a Wall with your hands or legs, you get hurt. Why?

Because of Newton's Third Law. You hit the wall with a force and that exact same amount of force is returned by the wall.

2. While Rowing a boat, when you want to move forward on a boat, you paddle by pushing the water backwards, causing you to move forward.

3.While Walking, You push the floor or the surface you are walking on with your toes, And the surface pushes your legs up, helping you to lift your legs up.

Explanation:

w = mg

on earth

w = mg

w = 60 × 9.8 = 588 N

on moon

w = mg

w = 60 × 1.6 = 96 N

on Mars

w = mg

w = 60 × 3.7 = 222 N

In this question,we solve it using the formulae below:

W=mg.

So to find the weight of the object in 1.Earth.Enter the given data on formula:

W=mg

W=60×9.8

2.Weight on the moon.

W=mg

W=60×1.6

3.Weight on Mars.

W=mg

W=60×3.7

Answer:

5 ohms

Explanation:

V = IR

10 = 2 R

R = 5

Answer:

Explanation:

The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled.

Answer:

c) Albert Einstein,

Explanation:

in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels.

hope this helped

-lvr

Neural convergence results in increased sensitivity and decreased acuity.

Convergence allows a neuron to receive input from many neurons in a network. Lateral inhibition. A presynaptic cell excites inhibitory interneurons and they inhibit neighboring cells in the network. Neural convergence occurs when a number of neurons synapse onto a single neuron. -The greater convergence of the rods compared to the cones translates into 2 differences in perception: -The rods result in better sensitivity than the cones. -The cones result in better detail vision than the rods.

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Answer:

D

Explanation:

LA FUERZA NETA ES LA FUERZA TOTAL DE EMPUJE MENOS EL PESO DEL

COHETE.

\(F_{y}\) = 700000 N(sen 90° - 20°) - 560000 N = 97785 N

The approximate vertical component of the net force that is propelling the rocket away from Earth is 112,000 N. Option B is correct.

The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. The thrust force is pointing upwards at an angle of 20 degrees, and the weight of the rocket is pointing downwards. The thrust force is the force that is generated by the rocket engine. It is the force that propels the rocket upwards.

The weight of the rocket is the force of gravity acting on the rocket. It is the force that pulls the rocket downwards. The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. If the net force is positive, the rocket will accelerate upwards. If the net force is negative, the rocket will accelerate downwards. If the net force is zero, the rocket will remain at rest.

net force = thrust force + weight

vertical component of net force = thrust force * cos(angle)

vertical component of net force = 700,000 N * cos(20 degrees) = 112,000 N. Option B is correct.

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Answer:

12 m/s

Explanation:

Given data

Mass m= 1500kg

intitial velocity u= 20m/s

force F= 6000N

time t= 2 seconds

Required

The final velocity v

From

Ft= mΔv

Ft= m(u-v)

substitute

6000*2= 1500(20-v)

solve for v

12000= 30000- 1500v

collect like terms

12000-30000= -1500v

-18000= -1500v

divide both sides by  -1500v

v= 18000/1500

v=12 m/s

Hence the velccity is 12 m/s

If the man DECREASES the force of his push on the cart, the cart slows down.

The force applied to an object is determined by applying Newton's second law of motion.

F = ma

where;

a = Δv/t

F = (mΔv)/t

mΔv = Ft

Δv = Ft/m

From the equation above, when the applied force decreases, the change in velocity decreases.

Thus, if the man DECREASES the force of his push on the cart, the cart slows down.

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Answer:

Ff = M g sin 5       where Ff is the force of friction opposing motion

Ff = .80 kg * 9.80 m/s^2 * .087 = .682 N

(note sin θ = θ     5 / 57.3 = .087 for angles less than about 10 deg)

Answer:

The position of the police car along the road is given by the function P(t) = 25t. The position of the getaway car along the road is given by the function G(t) = 75 + 2.5t.

To determine if and when the police car intersects with the getaway car, we can set P(t) equal to G(t) and solve for t: P(t) = G(t) 25t = 75 + 2.5t 22.5t = 75 t = 3.33 seconds

So, after approximately 3.33 seconds, the police car will intersect with the getaway car.

The correct answer is option: e. Because, this force always acts along  line joining the two charges. For like charges, the force is repulsive in nature.

The Coulomb's law states how charges interact with each other. That law states that: \(F =q1q24πϵ0r2\)

If the charges are like , the force will be repulsive, meaning that each charge will exert a force on the other to push the two of them apart. If  charges are opposite , they will exert an attractive force on each other. G or unlike charges, the force is attractive as shown below: ( as Shown in image attached  to question), As we know none of the arrow moves in the direction of the net force. Hence, the correct answer is option: e

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Answer:

The answer lies in the fact that the planets' speed as they orbit the sun. The planets move faster when they are around the Sun but move slower ...

·

Top answer:

The planets are not pulled towards the sun because the planets' speed as they orbit the sunThe ...

Explanation:

Answer:

C. temperance, abolition, and women's access to education

Explanation:

Answer:

Explanation:

Let's look at a mathematical representation of this. The equation for tis is just a souped up version of Newton's 2nd Law:

F - f = ma. It an object is moving at a constant speed, the acceleration of that object is 0. That changes this equation to

F = f which states that the applied Force equals the frictional force, choice a.

If the temperature of a sample of water at 4°C is slightly increased, its volume will generally increase. However, water exhibits a unique behavior around 4°C that deviates from this general trend.

When water is cooled from higher temperatures, its volume decreases until it reaches approximately 4°C. At this point, water reaches its maximum density. However, as the temperature continues to decrease below 4°C, water expands and becomes less dense. This behavior is due to the arrangement of water molecules in a crystalline structure at lower temperatures.

Conversely, when the temperature of water at 4°C is increased, its volume generally increases as it follows the normal thermal expansion behavior. As water absorbs heat, the increased thermal energy causes the water molecules to move more vigorously, leading to an increase in the average distance between the molecules. This results in an expansion of the water's volume.

It's worth noting that this behavior is specific to water and does not apply to all substances. Most substances exhibit thermal expansion, where an increase in temperature leads to an increase in volume.

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C) A small amount of mass can be turned into a large amount of energy. This is the principle behind nuclear reactions and the development of nuclear energy.

E=mc2 is Einstein's equation that connects energy (E) to mass (m) and light speed (c). According to this definition, energy is determined by multiplying an object's mass by its square of the speed of light. This formula emphasises the relationship between mass and energy.

The equation demonstrates how a little bit of mass may yield a lot of energy. The figure "c," which stands for the speed of light, is enormous—it is roughly 3 x 108 metres per second. This value gains considerably more significance when squared.

Because the speed of light is such a huge number, it produces a massive quantity of energy when multiplied by the mass of an object, even a modest amount of mass. This phenomenon is seen in nuclear reactions, where a sizable amount of energy is released but only a small portion of the mass of the atomic nuclei is changed. This idea underlies the operation of nuclear power plants and nuclear weapons.

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Answer:

The magnetic pole, is the region at each end of a magnet where the external magnetic field is strongest. A bar magnet suspended in the Earth's magnetic field orients itself in a north–south direction. The north-seeking pole of such a magnet, or any similar pole, is called a north magnetic pole.

Explanation:

Answer:

4.    0.12mm

5:

a. screw gauge

b. caliper

Answer:

0.11 mm

vernier calipers

im not sure about the sure about B

Explanation:

To determine the dielectric constant of the medium in the parallel plate capacitor, we can use the formula:

C = ε₀ * (A / d)

where:

C is the capacitance of the capacitor,

ε₀ is the vacuum permittivity (a constant),

A is the area of the capacitor plates, and

d is the distance or separation between the plates.

Given:

The separation between the plates is increased by 2.4 mm (0.0024 m).

A plate of thickness 3 mm (0.003 m) is inserted into the capacitor while keeping the potential constant.

When a dielectric material is inserted into a capacitor, it increases the capacitance by a factor of the dielectric constant (κ) of the material. Therefore, the new capacitance can be expressed as:

C' = κ * C

Since the potential remains constant, we can say that the initial capacitance (C) is equal to the final capacitance (C').

Therefore, we can write the equation:

ε₀ * (A / d) = κ * ε₀ * (A / (d + Δd))

where Δd is the increase in separation due to the insertion of the plate.

Cancelling out ε₀ and A from both sides of the equation, we are left with:

1 / d = κ / (d + Δd)

Simplifying further:

(d + Δd) / d = κ

Substituting the given values:

(d + 0.0024) / d = κ

Now, let's calculate the dielectric constant (κ):

κ = (d + 0.0024) / d

κ = (0.003 + 0.0024) / 0.003

κ ≈ 1.8

Therefore, the dielectric constant of the medium in the parallel plate capacitor is approximately 1.8.

The insertion of a dielectric material into a capacitor increases its capacitance by a factor equal to the dielectric constant of the material. By rearranging the equation for capacitance and considering the change in separation, we can determine the dielectric constant of the medium.

In this scenario, with the insertion of a plate and an increase in separation in the parallel plate capacitor, the dielectric constant of the medium is calculated to be approximately 1.8.

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Based on the given information, the pipe is likely an open pipe because the frequencies of the harmonics are in the ratio of 1:2:3, which is characteristic of an open pipe.

The fundamental frequency is the lowest frequency in most of the closed pipe, and the harmonics are odd-numbered multiples of the fundamental frequency .On the other side, the fundamental frequency is the lowest  frequency where harmonics are whole-numbered product of the fundamental frequency in an open pipe..

Given that the first three harmonics are 300 Hz, 600 Hz, and 900 Hz, respectively, we can observe that the frequencies form a ratio of 1:2:3. This ratio indicates that the pipe is an open pipe because the frequencies are whole-numbered multiples of the fundamental frequency.

As for the sketch of the standing waves formed by these frequencies, in an open pipe, the fundamental frequency corresponds to a full wavelength (λ), the second harmonic corresponds to two half-wavelengths (2λ/2), and the third harmonic corresponds to three-thirds of a wavelength (3λ/3).

The standing wave patterns would show nodes (points of no displacement) and antinodes (points of maximum displacement) at specific locations along the length of the pipe. The exact shape of the standing waves would depend on the specific boundary conditions of the pipe, but they would generally exhibit alternating patterns of nodes and antinodes.

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Explanation:

divide the distance by the time it takes to travel that same distance, then add your direction to it.

Or change in displacement divided by change in time.

Answer:

A. 2HCl + Mg(OH)2 + 2H2O + MgCl2

hope it helps

Answer:

Yes.

Explanation:

Yes, the electron charge is equal in mode to the proton charge because electrons are opposite to the charge of proton due to which they cancel the effect of each other. Proton has positive charge whereas election has negative charge which cancel the effect of each other if they are present in the same number. If the electron is losses by an atom, positive charge appears on the atom due to more number of proton as compared to electron while on the other hand, negative charge appears on atom if electron is accepted by the atom.

Kicking a penalty goal in soccer requires more force compared to passing the ball. A penalty kick demands a strong and forceful kick to score, while passing requires less force for shorter distances.

Kicking a penalty goal in soccer typically requires more force compared to passing the ball. When taking a penalty kick, the player aims to shoot the ball with maximum power and accuracy to overcome the goalkeeper's defences and score a goal. This requires a strong and forceful kick to propel the ball with sufficient speed and force towards the goal. On the other hand, passing the ball involves transferring it to a teammate, often at a shorter distance and with less force. While passing still requires some level of force, it is generally not as demanding as a penalty kick in terms of the amount of force applied.

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Answer:

The Vacuole

Explanation:

The Vacuole