A beaker (glass jar) contains 1 kg of water; when converted to a volume measurement it is the same as:


1,000 mL
1,000 L
1,000 cm 3

Pick more than 1

Answer: same force in opposite direction.

Explanation: Charges of opposite sign attracts each other and charges with same sign repel each other. Because only sign of negative charge changes, and absolute value of charge remains same, value of force is same but is in opposite direction.

Answer:

A) same force, but in the opposite direction

Explanation:

he's right

Answer:

10m/s

Explanation:

collisions results in objects sticking together or not sticking together after collision and so they do move with a common velocity or uncommon velocity respectively.

Parameters from the question:

Mass of green billiard balls, m1=2kg

Mass of white billiard balls, m2=2kg

Initial velocity for green billiard balls ,u1=4m/s

Initial velocity for white billiard balls ,u2 = 0m/s( since the body is at rest meaning it wasn't moving)

Final velocity of green billiard ball after collision is,v1= unknown

Final velocity of white green billiard ball after collision is, V2 = -6m/s.

Now from Newton's third law of motion that action and reaction must be equal and opposite;hence change in momentum before collision would be the same after collision since energy is conserved.

Hence,

m1U1 + m2U2 = m1V1 +m2V2

2×4 + 2×0 = 2×V1 + 2× (-6)

8 = 2V1 -12

8+12=2V1

20=2V1

10=V1

V1=10m/s

The alpha particles are capable of alternating the mass and atomic numbers in the atoms which is responsible for transmutation. This occurs in nuclear reacting.

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a) D2022 = $1.9975, D2023 = $2.27715, D2024 = $2.60554, D2025 = $2.98868, D2026 = $3.43243

b) Po = $13.63

c) Dividend yield = 13.85%, Capital gains yield = 74.52%, Expected total return = 88.37%. Dividend yield = 17.89%, Capital gains yield = -23.29%, Expected total return = -5.40%.

a) Dividend is the distribution of earnings to shareholders. Expected dividend for each year can be calculated as follows:

D2022 = D0 (1 + g) = $1.75 (1 + 0.14) = $1.9975

D2023 = D2022 (1 + g) = $1.9975 (1 + 0.14) = $2.27715

D2024 = D2023 (1 + g) = $2.27715 (1 + 0.14) = $2.6055415

D2025 = D2024 (1 + g) = $2.6055415 (1 + 0.14) = $2.98868161

D2026 = D2025 (1 + g) = $2.98868161 (1 + 0.14) = $3.432429195

b) The present value of dividends expected in 2022, 2023, 2024, 2025 and 2026 can be calculated using the following formula:

PVD = D / (1 + r)t

where

PVD = present value of dividends expected

D = dividend expected in a future year

t = number of years from now

r = required rate of return

PVD2022 = $1.9975 / (1 + 0.12)¹ = $1.77700934579

PVD2023 = $2.27715 / (1 + 0.12)² = $1.88843867485

PVD2024 = $2.6055415 / (1 + 0.12)³ = $1.99719364693

PVD2025 = $2.98868161 / (1 + 0.12)⁴ = $2.10928913223

PVD2026 = ($3.432429195 + ($3.432429195 * 1.05)) / (1 + 0.12)⁵ = $2.25661605368

The present value of the stock price that should exist at the end of 2026 can be calculated using the constant growth equation:

Po = D1 / (r - g)

where

Po = price of stock today

D1 = dividend expected at the end of 2026r = required rate of return

g = expected growth rate

Po = $3.60484320761

Total present value of all dividends expected plus the present value of the stock price at the end of 2026 can be calculated using the formula:

Total PV = PVD2022 + PVD2023 + PVD2024 + PVD2025 + PVD2026 + PoTotal PV = $1.77700934579 + $1.88843867485 + $1.99719364693 + $2.10928913223 + $2.25661605368 + $3.60484320761 = $13.6333900619

The value of the stock today, Po, is $13.63.

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The two practices are;

The carbon dioxide emission results from the combustion of fossil fuels such as petrol, coal, firewood etc.

Carbon dioxide emission can be reduced through the following practices;

Thus, the two practices would most likely result in a decrease in carbon dioxide emissions are;

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The ball's velocity is 40/91 m/s if its angular velocity around the elbow joint is 20.0 rad/s and it is 1.25 m away from the elbow joint.

In essence, the angular velocity is a vector quantity and represents the speed at which an item rotates. The angular velocity of an object is determined by its angular displacement over a specified amount of time.

In contrast to orbital angular velocity, spin angular velocity describes how quickly a rigid body rotates with regard to its center of rotation and is independent of the choice of origin. An angle per unit of time is the usual unit of measurement for angular velocity.

w = angular velocity of the ball about the elbow joint = 30.3 rad/s

r = radius of circular turn = distance of the ball from the elbow joint = 1.35m

v = linear velocity of the ball

Linear velocity of the ball is given as

v = r w

Inserting the values given above in the equation

v = (1.35) (30.3)

v = 40.91 m/s

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Answer:

The lightbulbs were exploding after several mins of use

Explanation:

Answer:

the lightbulbs were exploding after several minutes of use

Explanation:

a p e x :))

The diver was 10.425m deep when they came to a stop and the rate of acceleration in the water was \(-9.4m/s^2\).

Given the height of springboard from water (h) = 10m

Time after which the diver comes to a stop = 1.5s

Let the depth the diver reached in water = d

The final velocity after he reaches the depth (v) = 0m/s

Lett the speed of diver after free fall until he reaches water = um/s

According to Newtons laws of motion we know that \(v^2 - u^2 = 2gh\)where g is the acceleration due to gravity = \(9.8m/s^2\) then:

\(0^2 - u^2 = 2*(-9.8)*(10)\)

\(u^2 = 196 \\u = \sqrt{196} = 14m/s\)

The initial velocity with which the diver reaches water surface = 14m/s

The rate of acceleration in the water can be calculated using the equation:

a = (Vf - Vi) / t where Vf is the final velocity, Vi is the initial velocity, and t is the time it takes for the diver to come to a stop.

\(a = (0 - 14)/1.5 = -9.4 m/s^2\)

Then  the distance the diver travelled in water before coming to rest is calculated as below:

\(s = ut + 1/2at^2\) then:

\(d = 14 * 1.5 - 1/2 * (-9.4) * 1.5 * 1.5\)

d = 21 - 10.575 = 10.425m

Therefore, the depth of the diver when they came to a stop was 10.425m

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Answer:

what?

Explanation:

theres nothing

Answer:

Three stages of falling

There are three stages as an object falls through a fluid:

at the start, the object accelerates downwards due to the force of gravity

as the object's speed increases, frictional forces such as air resistance or drag increase

at terminal velocity, the weight of the object due to gravity is balanced by the frictional forces, and the resultant force is zero

Explanation:

_______________________________________________________

Based on the 'Law of Conversation of Energy', potential energy is equal to thermal energy plus kinetic energy.

In summary - Option C is correct

________________________________________________________

Hope this helps!

The conservation of energy states that energy cannot be created or destroyed by ordinary chemical or physical means.

The conservation of energy refers that the total energy present in an isolated system remains constant. It means that a system itself can not generate or consume energy. Energy actually transferred from one form to another.

Conservation of energy: tell us that energy can neither be created nor destroyed, but can be transferred from one form to another. e.g Chemical to mechanical ( combustion of fuel in the vehicle to achieve mechanical work.

The conservation of energy is defined by the first law of thermodynamics. Which states that we can not generate energy or can not destroy energy but only can transfer it from one form to another. Like chemical to heat, Kinetic to potential, etc.

Therefore, the conservation of energy states that energy cannot be created or destroyed by ordinary chemical or physical means.

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The intensity of 1 MeV gamma-rays incident on a thin slab of water required to give an absorption rate of 1 rad/sec is approximately \(6.25 * 10^{13} MeV/sec\).

To calculate the radiation intensity, we need to convert the absorption rate of 1 rad/sec to the dose rate in Gray/sec, and then to the radiation intensity in MeV/sec. Since 1 rad/sec is equivalent to an absorption rate of 0.01 Gy/sec, we have:

0.01 Gy/sec = (energy absorbed per second) / (mass of material x 1 sec)

For water, the mass per unit volume is \(1 gram/cm^3\) or \(1000 kg/m^3\). Therefore, we have:

\(0.01 Gy/sec = (energy absorbed per second) / (1000 kg * 1 m^2 * 1 sec)\)

Solving for the energy absorbed per second, we get:

energy absorbed per second = 0.01 Gy/sec x 1000 kg = 10 J/sec

The energy of 1 MeV gamma-rays is equal to \(1.6 * 10^{-13} J\). Therefore, the radiation intensity required to deposit 10 J of energy per second in the water is:

\(intensity = (10 J/sec) / (1.6 *10^{-13} J/MeV) = 6.25 *10^{13} MeV/sec\)

Therefore, the intensity of 1 MeV gamma-rays incident on a thin slab of water required to give an absorption rate of 1 rad/sec is approximately \(6.25 * 10^{13} MeV/sec\).

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Answer:

initial KE = final PE

1/2 m v^2 = m g h

h = v^2 / (2 * g) = 3.2^2 / (2 * 9.8) = .52 m    height of ramp

The best way to do the experiment on finding the focal length of a concave mirror by obtaining the image of a distant object is to keep both the mirror and the screen in suitable stands with the screen put behind the mirror, hence option D) is correct

The best way to do the experiment on finding the focal length of a concave mirror by obtaining the image of a distant object is to keep both the mirror and the screen in suitable stands with the screen put behind the mirror, which is option (d). This is because a concave mirror forms a real image of a distant object at its focus, and the light rays from the object converge to the focus after reflecting from the mirror. In this case, the distant object should be placed at a distance greater than the focal length of the mirror, and the screen should be placed at the position of the focus of the mirror to obtain a sharp image. By keeping both the mirror and the screen in suitable stands with the screen put behind the mirror, we can ensure that the distance between the mirror and the screen is equal to the focal length of the mirror, which is required to obtain a sharp image of the distant object.

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Answer:

B. oxygen

Explanation:

Answer:

it's oxygen lolllllllllllll they kinda need it

Explanation:

Answer:

Option (b).

Explanation:

Two forces are acting perpendicularly on an object. We have, F₁ = 8.2 N and F₂ = 20.6 N

We need to find the net force acting on the object. When two forces are acting in perpendicular to each other, the net force on it is given by :

\(F=\sqrt{F_1^2+F_2^2} \\\\=\sqrt{8.2^2+20.6^2} \\\\=22.17\ N\)

or

F = 22 N

Let \(\theta\) is the angle. It can be given by :

\(\tan\theta=\dfrac{F_1}{F_2}\\\\\tan\theta=\dfrac{8.2}{20.6}\\\\=21.7^{\circ}\)

or

\(\theta=22^{\circ}\)

So, the net force is 22 N and the direction is 22° counterclockwise from F₁. Hence, the correct option is (b).

The greenhouse effect is the warmth of the sun being trapped in the lower atmosphere of a planet because the atmosphere is more transparent to solar visible radiation than it is to solar infrared heat emanating from the planet's surface.

Shortwave radiation from the sun penetrates the earth's atmosphere, where it is absorbed and reflected back out into space as longwave radiation.

Describe solar radiation.

The electromagnetic radiation that is released by the sun is referred to as solar radiation. This radiation exists as heat energy, which may be transformed through a variety of technological methods into other types of energy.

Nuclear fusion occurs within the sun, which produces solar radiation.

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Answer:

When a branch of a tree is shaken, some of the fruits may fall down. Why? Solution : The fruits fall down due to inertia of rest.

Answer:

I HOPE IT WILL HELP YOU A LOT....

Recycling helps the environment in a number of ways. Firstly, it reduces the amount of waste that ends up in landfills, which not only takes up valuable space but also creates harmful greenhouse gases.

By recycling materials such as paper, plastic, and glass, we can reduce the need for new resources to be extracted and manufactured, which in turn reduces the amount of energy and emissions associated with these processes. Recycling also helps to conserve natural resources, as materials such as metals and paper can be reused over and over again. Overall, recycling is a crucial step in reducing our impact on the environment and creating a more sustainable future.

we decrease the demand for new resources, preserve natural habitats, and minimize pollution. Additionally, recycling conserves energy as it requires less energy to process recycled materials compared to extracting and processing raw materials. Overall, recycling plays a significant role in maintaining a sustainable and healthy environment.

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Answer:

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

Explanation:

Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in electronic equipment. Practical resistors as discrete components can be composed of various compounds and forms. Resistors are also implemented within integrated circuits.

The electrical function of a resistor is specified by its resistance: common commercial resistors are manufactured over a range of more than nine orders of magnitude. The nominal value of the resistance falls within the manufacturing tolerance, indicated on the component.

The expected magnetic field reading when the current through the coil is -0.2 A would be -0.06 T.

To determine the expected magnetic field when the current through the coil is -0.2 A, we can use Ampere's law, which states that the magnetic field inside a coil is directly proportional to the current passing through it.

Given that the magnetic field (B) inside the coil is 0.03 T when the current (I) through the coil is 0.1 A, we can establish a proportionality relationship:

B1 / I1 = B2 / I2

where B1 is the initial magnetic field, I1 is the initial current, B2 is the expected magnetic field, and I2 is the expected current.

Substituting the known values into the equation:

0.03 T / 0.1 A = B2 / (-0.2 A)

Now we can solve for B2:

B2 = (0.03 T / 0.1 A) * (-0.2 A)

Simplifying the expression:

B2 = -0.06 T

Therefore, the expected magnetic field reading when the current through the coil is -0.2 A would be -0.06 T.

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The frequency of the second overtone if the fundamental frequency is 308 Hz is equal to 1540 Hz.

An overtone can be described as any resonant frequency above the fundamental frequency of a sound. Overtones can be defined as all pitches higher than the lowest pitch within an individual sound. While the fundamental can be described as usually heard most prominently, overtones are present in any pitch except a true sine wave.

The lowest normal frequency is called the fundamental frequency, while the higher frequencies are known as overtones.

Given, the fundamental frequency, f₀ = 30 8 Hz

The relationship between the fundamental frequency and the second overtone is given by

f₂ = 5 f₀

f₂ = 5 × 308 = 1540 Hz

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Answer:

hello! Jaesuk~Sakai here!

Explanation:

The four group 3 elements are scandium, yttrium, lanthanum and actinium. “lanthanide” refers to the elements between lanthanum and lutetium. That term does not encompass scandium and yttrium. Scandium and yttrium act pretty much identically to lanthanides.

happy to help!!

Remember to always stay happy no matter what happens! ^^

Answer:

1.4765 Hz

Explanation:

right on acellus

The frequency of an event is the inverse of time period.The frequency of the kid on bouncing the pogo stick is 1.47 Hz.

Frequency of an event is is the number of occurance of that event in unit time. It is the inverse of time period of that event. Hence frequency has the unit of s⁻¹ which is equivalent to Hz.

The frequency of a wave is the number of wave cycles per unit time. Frequency is directly related to the energy of the vibration or wave. Hence, as the frequency increases, energy increases.

Given that, the number of oscillations from the bouncing of the pogo stick is 22 times in 14.9 seconds. Thus , number of oscillations in 1 second is:

22 /14.9 s = 1.47 Hz.

Therefore, the frequency of the event created by the kid is 1.47 Hz.

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Answer:

To find the length of the thermometric liquid above the ice point that corresponds to a temperature of 75 degrees Celsius, we need to know the size of the temperature interval between the ice point and the steam point, as well as the size of the temperature interval between the ice point and 75 degrees Celsius.

The size of the temperature interval between the ice point and the steam point can be calculated using the formula:

T = (S - I)/R

Where T is the size of the temperature interval, S is the length of the thermometric liquid above the steam point, I is the length of the thermometric liquid above the ice point, and R is the size of the temperature interval per unit length of the thermometric liquid.

Since the ice and steam points of the thermometer are 192mm apart, we know that S - I = 192mm. We also need to know the value of R in order to calculate T.

Once we know the size of the temperature interval between the ice point and the steam point, we can use this value to calculate the size of the temperature interval between the ice point and 75 degrees Celsius.

Let's assume that the size of the temperature interval per unit length of the thermometric liquid, R, is 0.5 degrees Celsius per millimeter. With this value of R, the size of the temperature interval between the ice point and the steam point can be calculated as follows:

T = (192mm - 0mm)/0.5 degrees Celsius/mm = 384 degrees Celsius

Now that we know the size of the temperature interval between the ice point and the steam point, we can use this value to calculate the size of the temperature interval between the ice point and 75 degrees Celsius.

The size of the temperature interval between the ice point and 75 degrees Celsius is 75 degrees Celsius - 0 degrees Celsius = 75 degrees Celsius.

We can now use the size of the temperature interval between the ice point and 75 degrees Celsius, along with the size of the temperature interval per unit length of the thermometric liquid, R, to calculate the length of the thermometric liquid above the ice point that corresponds to a temperature of 75 degrees Celsius:

I = (75 degrees Celsius)/(0.5 degrees Celsius/mm) = 150mm

Thus, the length of the thermometric liquid above the ice point that corresponds to a temperature of 75 degrees Celsius is 150mm.

During a tennis volley, the force pair involved is the action-reaction forces.

When playing tennis and returning a volley, the force pair involved is the action and reaction forces. In the process of hitting the ball, the tennis racket exerts a force on the ball, which is the action force.

The ball, in turn, exerts an equal and opposite force on the racket, which is the reaction force.Both the racket and the ball experience the force of impact during the volley.

The force applied by the racket causes the ball to move forward, while the equal and opposite force applied by the ball pushes the racket back.

These two forces are referred to as action-reaction forces or force pairs. A force pair refers to a pair of forces that are equal in magnitude but opposite in direction.

These forces always act on different objects and occur simultaneously. In this scenario, the action force was exerted by the tennis racket while the reaction force was exerted by the ball.

Therefore, during a tennis volley, the force pair involved is the action-reaction forces.

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we call it as well as 100 . so easey

Answer:

10 squared

Explanation:

10 squared

In Depth:

Let have a square that has a side length of 10.

A square four sides are equal and if we find the area of a squared, our formula is

\( {s}^{2} \)

Our in this instance,

\( {10}^{2} \)

or we call it

\(10 \: \: squared\)