The image below shows a convex lens and incident light rays. Incident Rays What will happen to the light after it passes through the lens? O A. The light rays will emerge parallel to form an image. OB. The light rays will converge to form an image. OC. The light rays will diverge and will not form an image. O D. The light rays will converge and will not form an image.

Answer:

w=mg

Explanation:

w=97×9.8

w=950.6 N

Answer:

Look at the mirror from the positive axis and  suppose the incident ray is at angle at 40 from the y-axis

Incident ray at 50 deg

reflected ray at 130 deg

total angle of deflection = 130 - 50 = 80 deg

Now rotate the mirror by 20 deg

incident ray at 30 deg

reflected ray at 150 deg    (angle of incidence must equal angle of reflection)

total angle of deflection = 150 - 30 = 120 deg

the difference between 2 reflected rays = 120 - 80 = 40 deg

So if you increase (decrease) the incident angle the reflected ray will  be increased by twice the angle of rotation of the mirror - or the perpendicular to the mirror increases by X degrees the angles of incidence and reflection will each increase by X deg

Answer:

Explanation:

a. The direction of the force on the proton can be determined using the right-hand rule for magnetic fields. If the right hand is oriented such that the fingers point in the direction of the magnetic field (from north to south in this case) and the thumb points in the direction of the proton's velocity (to the right in this case), then the palm of the hand will point in the direction of the force on the proton. Using this rule, we can see that the force on the proton points downward, as shown in the diagram below:

     N

      |

 <----|---->

 |    |    |

 |    |    |

 |____|____|

      |

      S

b. The magnitude of the force on the proton can be calculated using the formula:

F = qvB

where F is the magnitude of the force, q is the charge of the particle, v is its velocity, and B is the magnetic field strength. For a proton, which has a charge of +1.6 x 10^-19 coulombs, the magnitude of the force is:

F = (1.6 x 10^-19 C)(5.6 x 10^3 m/s)(0.55 T) = 4.5 x 10^-14 N

Therefore, the magnitude of the force on the proton is 4.5 x 10^-14 N.

Answer:

V=4.5 m/s

Explanation:

KE=1/2mv^2

1500=1/2(15000)v^2

answer :4.5m/s

Explanation:

V=30,000J/1500kg

V=20m²/s²

V=4.5m/s

The amount of energy absorbed (eV) by a photon can be calculated using the formula: Energy (eV) = Planck's constant (eV s) × speed of light (m/s) / wavenumber (cm^-1).

Step 1:

To calculate the amount of energy absorbed (eV) by a photon given the wavenumber, you can use the formula: Energy (eV) = Planck's constant (eV s) multiplied by the speed of light (m/s) divided by the wavenumber (cm^-1).

Step 2:

When it comes to calculating the energy absorbed by a photon, the wavenumber is an essential parameter. The wavenumber represents the number of waves per unit distance and is usually measured in reciprocal centimeters (cm^-1). In order to determine the energy absorbed by a photon in electron volts (eV), you can utilize the following formula:

Energy (eV) = (Planck's constant × Speed of light) / Wavenumber

Planck's constant is denoted by the symbol "h" and has a value of approximately 4.1357 × 10^-15 eV s. The speed of light, represented by "c," is approximately 2.998 × 10^8 meters per second. By dividing the product of Planck's constant and the speed of light by the wavenumber, you can obtain the energy absorbed by the photon in electron volts.

In simpler terms, the formula states that the energy of a photon is directly proportional to its frequency. As the wavenumber increases, indicating a higher frequency, the energy absorbed by the photon also increases. Conversely, a decrease in wavenumber corresponds to a lower frequency and a decrease in the energy absorbed.

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Answer:

C. A turtle relies indirectly on the Sun as an energy source.

Explanation:

Turtles are animals, meaning they are unable to perform photosynthesis, thus option A is inapplicable. Turtles consume food such as algae and seagrass. These aquatic plants gain their energy directly from the Sun through photosynthesis, and as a result when the turtle consumes these plants, that energy from the Sun is indirectly feeding the turtle.

Given:

The mass on the table is,

The hanging mass is,

THe coefficient of friction is,

let the acceleration of the whole system is a (for the hanging mass it is downward and for the mass on the table it is rightward). the tension towards The fixed point of the pulley is T.

we can write,

Adding these equations we get,

Substituting the values we get,

Hence the acceleration is 6.66 m/s^2.

28.284 m/s fast it was  going when it was 10m high from the ground.

Calculation :

Given:

The maximum height reached by the ball s=30 m

The object will come into rest at the maximum height.

The gravity always acts downward so the acceleration of the ball ⇒a=g=−10 m/s²

From the third equation of motion:

v²=u²+2as

Thus the initial velocity of the ball is:

u=\(\sqrt{v^{2}-2as}\)

=\(\sqrt{0-2(-10m/s^{2} )(30 m)}\)

u=24.495 m/s

From the first equation of motion:

v=u+at

The time is taken by the ball to reach the maximum height is:

t=(v−u)/a

=[0−(24.495 m/s)]/(−10 m/s²)

t=2.4495 s

Now From the third equation of motion:

v²=u²+2as

Thus the velocity of the ball at 10 m is:

v=\(\sqrt{u^{2} +2as}\)

=\(\sqrt{(24.495 m/s)^{2} -2(-10 m/s^{2} )(10 m)}\)

v≈28.284 m/s

Velocity is a vector representation of the displacement experienced by an object or particle over time. The standard unit for velocity magnitude (also called velocity) is meters per second (m/s).

Velocity is the percentage of time an object moves along a path, and Velocity is the speed and direction of an object's movement. That is, velocity is a scalar value and velocity is a vector.

Velocity (v) is a vector quantity that measures displacement (or change in position Δs) with respect to change in time (Δt) and is given by the formula v = Δs/Δt.

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To determine the runaway car's speed at the bottom of the hill, we can use the principle of conservation of energy.

Assuming no external forces (such as friction) act on the car, the total mechanical energy of the car is conserved throughout its motion. At the top of the hill, the car has potential energy due to its height, and as it reaches the bottom, this potential energy is converted entirely into kinetic energy.

The equation for conservation of energy in this scenario is:

Potential energy at the top = Kinetic energy at the bottom

The potential energy of the car at the top is given by the formula:

Potential energy = mass * acceleration due to gravity * height

The kinetic energy of the car at the bottom is given by the formula:

Kinetic energy = (1/2) * mass * velocity^2

By equating the potential energy at the top to the kinetic energy at the bottom, we can solve for the velocity of the car at the bottom.

Velocity^2 = (2 * acceleration due to gravity * height)

Velocity = √(2 * acceleration due to gravity * height)

Substituting the known values for acceleration due to gravity (approximately 9.8 m/s^2) and the height of the hill, you can calculate the velocity of the runaway car at the bottom.

Make sure to use consistent units (e.g., meters) for the height to obtain the correct velocity unit (meters per second) as the result.

Using this approach, you can find the speed of the runaway car at the bottom of the hill by calculating the velocity based on the given height and the acceleration due to gravity.

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Answer:

0

Explanation:

as Newton 1st Law said that every object will remain at rest or in uniform motion (constant speed) in a straight line unless compelled to change its state by the action of an external force

Net Force = 0

The typical maximum current for electrical wall sockets in our houses is 15 amps. Therefore, alternative C. is the correct alternative.

This is the standard rating for most wall sockets found in residential homes. It is important to note that some appliances, such as refrigerators or air conditioners, may require a higher maximum current and may have their own dedicated circuits with higher amp ratings.

However, for most general use, 15 amps is the standard maximum current for wall sockets, with a voltage of 120 V.

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Answer:

16.6 kg.m/sec^2

Explanation:

force law is mass times acceleration

The total charge flown across any cross section of the wire in time interval 0-T is determined from the area under the curve as ¹/₂i₀T.

option (2) is the correct answer.

The total charge flown across any cross section of the wire in time interval 0-T is calculated as follows;

The total charge flowing = area under the curve

area under the curve = ¹/₂ x base of the triangle x height of the triangle

area under the curve = ¹/₂ x T  x i₀

area under the curve = ¹/₂i₀T

Thus, the total charge flown across any cross section of the wire in time interval 0-T is determined from the area under the curve as ¹/₂i₀T.

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Answer:

14.826 kg

Explanation:

move the decimal at the end over to the left 3 times

Answer: 14.826

Answer:

D

Explanation:

The ballon will repel

The largest value of I_max that the breaker can carry is approximately 21.21 A.

Given a circuit breaker rated for 15 A RMS at 240 V RMS, we want to find the largest value of Imax (maximum current) that the breaker can carry. To do this, we'll use the following formula:

I_max = √2 * I_RMS

Where I_RMS is the rated current in RMS, which is 15 A in this case.

Substitute the value of I_RMS into the formula:
Imax = √2 * 15 A

Calculate the value of Imax:
Imax ≈ 21.21 A

Therefore approximately 21.21 A is the largest value of Imax that the breaker can carry.

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Answer:

they are transparent to see the content of goods inside but at the same time what cause it to be transparent is because of the fact that they are created with low-density polyethylene and polypropylene, which are transparent polymers.

In a binary system, two stars orbit around a common center of mass. One of the unique events that can occur in a binary system is a type of stellar explosion known as a supernova.

This occurs when one of the stars in the binary system runs out of fuel and collapses, causing a massive explosion that can outshine an entire galaxy. Another event that can occur in a binary system is a tidal disruption event, where one star is torn apart by the gravitational forces of its companion star. This can also result in a sudden increase in luminosity, although not as bright as a supernova. In addition, binary systems can also exhibit periodic variations in their luminosity due to eclipses, where one star passes in front of the other from our vantage point on Earth. This can be used by astronomers to study the properties of the stars in the binary system, such as their sizes and masses. Overall, while various events can occur in a binary system, supernovae are thought to have about the same luminosity due to the fact that they are caused by the same type of stellar explosion. This allows astronomers to use them as a standard candle for distance measurements in the universe.

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Aristotelian empiricism fell out of favor as science advanced primarily because it relied on evidence observable by human senses.

Aristotelian empiricism, based on the teachings of the ancient Greek philosopher Aristotle, emphasized the importance of direct observation and sensory experience as the foundation of knowledge. However, as scientific advancements were made, it became apparent that relying solely on human senses for observation had limitations. The development of more sophisticated scientific instruments and techniques allowed scientists to perceive and measure phenomena beyond the capabilities of human senses. This expansion of observational tools opened up new avenues of exploration and enabled the discovery of previously unknown phenomena.

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The equation F=ma, where F is the net force, m is the mass, and an is the acceleration, can be used. . Rearranging the formula to solve for mass, we get m=F/a. Substituting the given values, we get m=12 N/48 m/s^2 = 0.25 kg. Therefore, the answer is A) 0.25 kg.

To solve this problem, you can use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). In this case, the net force (F) is 12 N, and the acceleration (a) is 48 m/s². You are asked to determine the mass (m) of the hockey puck.

Using the equation F = ma, you can rearrange it to find the mass: m = F/a

Plug in the given values: m = 12 N / 48 m/s²

Calculate the mass: m = 0.25 kg

The mass of the hockey puck is 0.25 kg, which corresponds to option A.

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The vectors point along the axis of rotation with a direction determined by an arrow.

There are two types of physical quantity one is a scaler and another one is a vector.

The quantity that requires only megnitude to define is known as the scalar quantity. While the vector quantities need both megnitude and the direction to define.

The vector quantity is represented by an arrow. The vectors point along the axis of rotation with a direction determined by an arrow.

The angular quantities L, omega, and alpha are vector quantities.

Hence arrow is the correct answer for the blank.

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The direction of the vectors of angular momentum and L, angular velocity omega and the mass alpha is determined using the right hand rule.

Righthand rule in physics states that, when we curl our right hand fingers, the direction of the angular momentum and velocity will be in the direction of thumb and curl of fingers determine the axis of rotation.

Angular momentum is a vector quantity defined as the product of moment of inertia and angular velocity where, the angular velocity ω is the rotational analogue of linear velocity i.e.. product of the linear velocity and radius of rotational path.

Therefore, the angular quantities L, angular velocity ω along the axis of rotation can be determined using the right hand rule. Where direction of thump represents the direction of vector components.

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Answer:

The school is 3.40 meters tall.

Explanation:

You need to equations to solve this question. You need to know the time it takes to reach the ground and the time it takes for the two observers to hear it. The distance in both cases is the same, so the two conditions can be equated to each other.

Equations.

d = the height of the buildings

a is the acceleration due to gravity and is a constant 9.8i1 m/s^2

t1 is the time it takes to hit the ground

The initial velocity = 0 because the rock was dropped

Equation One

d = vi*t + 1/2 a t^2

Equation Two

d = v * t2

v is the velocity of sound

t2 is the time it takes for the sound to come back from hitting the ground.

d is the height of the school

Solution

vi*t + 1/2 a t1 ^2 = v * t2

t2 = 0.81 - t1

The times are separate, but they add up to 0.81 so

t1 I+ t2 = 0.81

t2 = 0.81 - t1

Rewrite the equation putting in the givens. Remember vi = 0

1/2 9.81  t1^2 = 340 * (0.81 - t1)        Remove the brackets

4.91* t1^2 = 275.4 - 340 t1               Transfer the right side to the left

4.91*t1^2 + 340t1 - 275.4 = 0           Use the quadratic formula to solve

a = 4.91

b = 240

c = -275.4

t1 = (-240 +/- sqrt(240^2 - 4*4.91*-275.4))/(2*4.91)

t1 = .8007 = 0.80

t1 + t2 = 0.81

0.80 + t2 = 0.81 - 0.80

t2 = 0.01

What you have found is the time it takes for the sound to come back to the two observers which is 0.01 seconds

d(height of school) = 340 * 0.01 = 3.4 meters

Answer:

b

Explanation:

a,f,,and g is correct because it is indicated that object moving forward

Another name for the first law of motion is the law of inertia. It is given this name because it describes the tendency of an object to remain at rest or in uniform motion in a straight line unless acted upon by an external force.

Inertia is the property of matter that makes it resist changes in motion, whether that motion is at rest or moving at a constant speed in a straight line. The law of inertia is the foundation of classical mechanics, which is the branch of physics that deals with the motion of macroscopic objects. The first law of motion is often attributed to Sir Isaac Newton, who formulated the three laws of motion in the late 17th century.

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Explanation:

group of multiple universes

these universes comprise everything that exists: the entirety of space, time, matter, energy, information, and the physical laws and constants that describe them.

Answer:

i did this project where i took two marbles pool noodles and tape then i made a ramp and i saw which marble would go down faster the big marble or the little marble hope this helps!!