When a transverse wave passes through water, water molecules are displaced
permanently in the direction of the wave motion.
permanently in a direction perpendicular to the wave.
temporarily in the direction of the wave motion.
temporarily in a direction perpendicular to the wave.

Answer:

Calculations involving forces

The resultant force is the single force that has the same effect as two or more forces acting together.

Two forces in the same direction

Two forces that act in the same direction produce a resultant force that is larger than either individual force.

You can easily calculate the resultant force of two forces that act in a straight line in the same direction by adding their sizes together.

Example

Two forces, 3 N and 2 N, act to the right. Calculate the resultant force.

Two arrows, one above the other, both pointing to the right, one labelled 2 N and one labelled 3 N. Then an equals sign and then another arrow to the right labelled 5 N.

Two forces acting in the same direction

Resultant force F = 3 N + 2 N = 5 N to the right.

The resultant force is 5 N to the right.

Two forces in opposite directions

Two forces that act in opposite directions produce a resultant force that is smaller than either individual force.

To find the resultant force subtract the magnitude of the smaller force from the magnitude of the larger force.

The direction of the resultant force is in the same direction as the larger force.

Example

A force of 5 N acts to the right, and a force of 3 N act to the left.

Calculate the resultant force.

Two arrows, one above the other, one pointing to the left, labelled 2 N, the other pointing to the right labelled 3 N. Then an equals sign, with an arrow to the right labelled 1 N.

Two forces acting in opposite directions

Resultant force F

Resultant force F = 5 N - 3 N = 2 N to the right.

The resultant force is 2 N to the right.

Explanation:

Thanks me later

Answer:

The water temperature is independent, and the cleanliness of the dishes is dependent.

Explanation:

You can change the independent variable in an experiment, in this case it's the water temperature. The dependent variable is the outcome from the independent variable, in this case being the cleanliness of the dishes. You can't control the cleanliness, but you can control the water temperature.

Hope my explanation isn't too confusing, hope this helps.

In order to determine the speed of the ball just before striking the ground, use the following formula:

where

g: gravitational acceleration constant = 9.8 m/s^2

vo: initial speed = 0 m/s

t: time = 4.70s

Replace the previous values of the parameters into the formula for v:

Hence, the speed of the ball is 46.06 m/s

The height from the ball was dropped can be obtained by using the following formula:

Co

It falls 9.8m far for the apple to drop from tree in 1.4sec.

Apple fall time t = 1.4 s

The free fall distance in time t is given by

d = 1/2at²

where a = g = 10 m/s² = free fall acceleration

calculation:

Using the above formula and the values ​​given, the distance the apple will fall free in 1.4 seconds is

d = 1/2(10)(1.4)²

= 9.8 m

Therefore the distance um the apple will fall is 9.8 m.

Isaac Newton formulated gravitational theory in 1665 or 1666 after watching an apple fall. An apple falling from a tree is an example of Straight-line motion because gravity causes it to fall vertically in a straight line.

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Answer:

Here is an example

Explanation:

Answer:

i think its a load to move a object,

Explanation:

im taking this to and it isnt in the lesson

Cyclotron to make 1 milligram of the isotope fluorine-18 for use a a diagnostic tool with it PET scanner. It seems that the hospital should plan to make more F-18 the next morning, as the amount remaining at midnight is very small.

The half-life of F-18 is 1.8 hours, so after 1.8 hours, half of the original amount of F-18 will remain. After 3.6 hours, a quarter of the original amount will remain, and so on.

At 3:00 PM (9 hours after the F-18 was made), the hospital will have

= 1/2^(9/1.8)

= 1/2^5

= 1/32

= approximately 0.03125 milligrams of F-18 remaining.

At midnight (18 hours after the F-18 was made), the hospital will have

= 1/2^(18/1.8)

= 1/2^10

= 1/1024

= approximately 0.0009765625 milligrams of F-18 remaining.

While using cyclotron, based on these calculations, it seems that the hospital should plan to make more F-18 the next morning, as the amount remaining at midnight is very small.

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The electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

To find the electric field strength at a distance 1.20 m on the x-axis, we can use Coulomb's law:

\($$F=k\frac{q_1q_2}{r^2}$$\)

where F is the force between two charges, q1 and q2 are the magnitudes of the charges, r is the distance between the charges, and k is the Coulomb constant.For a single point charge q located at the origin of the x-axis, the electric field E at a distance r is given by:

\($$E=\frac{kq}{r^2}$$\)  where k is the Coulomb constant.

So, let's calculate the electric field due to each charge separately and then add them up:

For the +2.0 C charge at x = 0, the electric field at a distance of 1.20 m is:\($$E_1=\frac{kq_1}{r^2}=\frac{(9\times10^9)(2.0)}{(1.2)^2}N/C$$\)

For the -3.0 C charge at x = 0.40 m, the electric field at a distance of 1.20 m is:

\($$E_2=\frac{kq_2}{r^2}\)

\(=\frac{(9\times10^9)(-3.0)}{(1.20-0.40)^2}N/C$$\)

The negative sign indicates that the direction of the electric field is opposite to that of the positive charge at x = 0.

To find the net electric field, we add the two electric fields\(:$$E_{net}=E_1+E_2$$\)

Substituting the values of E1 and E2:

\($$E_{net}=\frac{(9\times10^9)(2.0)}{(1.2)^2}-\frac{(9\times10^9)(3.0)}{(0.8)^2}N/C$$E\)

net comes out to be -1.5×10⁴ N/C.

Therefore, the electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

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Answer:

The kinetic energy of the baseball is 306.25 joules.

Explanation:

SInce the baseball can be considered a particle, that is, that effects from geometry can be neglected, the kinetic energy (\(K\)), in joules, is entirely translational, whose formula is:

\(K = \frac{1}{2}\cdot m\cdot v^{2}\) (1)

Where:

\(m\) - Mass, in kilograms.

\(v\) - Speed, in meters per second.

If we know that \(m = 0.5\,kg\) and \(v = 35\,\frac{m}{s}\), then the kinetic energy of the baseball thrown by the player is:

\(K = \frac{1}{2}\cdot m \cdot v^{2}\)

\(K = 306.25\,J\)

The kinetic energy of the baseball is 306.25 joules.

A live electrical circuit is one that is being supplied with energy . The option A is correct answer.

A live electrical circuit refers to a circuit that is currently being supplied with electrical energy. This means that the circuit is actively conducting electricity and poses potential hazards if not handled properly. It is crucial to exercise caution when working with live circuits, as they carry the risk of electric shock or fire.

Therefore, live circuits should be approached with care and appropriate safety measures, such as wearing protective gear and ensuring the power source is properly shut off before working on them.  A live electrical circuit is a circuit that is connected to a power source and actively conducting electricity.

It means that the circuit is energized and has the potential to deliver electrical energy to connected devices or components. When a circuit is live, it carries electrical current, which consists of the movement of charged particles, usually electrons, through a conductive path.

This movement of electrons creates an electric field and can produce various effects, such as generating heat, producing light, or powering electrical devices. Working with live circuits can be dangerous if proper precautions are not taken.  So, the correct answer is option A.

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Answer:

Explanation:

Battery is removed so its charge stored  becomes fixed .

Energy of capacitor E₁ = Q² / 2C

When dielectric is inserted , the capacity of the capacitor is increased to KC .

Charge on it still remains the same ie Q

So its new energy

E₂ = Q² / 2 KC

E₂ / E₁ = 1 / K

E₂ = E₁ / K

Change in energy

= E₂ - E₁

= E₁ / K - E₁

= E₁ [ (1 / K)  - 1 ]

Factor by which energy is changed

= [ (1 / K)  - 1 ] .

Amplitude=0.08257cm

Given mass=0.850kg

k=18.0 n/m

velocity=38cm/s

we know here conservation of energy

maximum kinetic energy = maximum potential energy

\(1/2 m v^{2}\) =\(1/2 k A^{2}\)

here we know k is spring constant and m is mass and A is amplitude and v is velocity.

So to find value for A solve

\(A=\sqrt{m v^{2} /k}\)

By plugging in values given in the question we get

\(A=\sqrt{0.850 (0.38^{2})/18 }\)

\(A=0.08257\)cm

Spring mass problem

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Answer:

DMs are not accessible anymore. I assume Zuka is a staff member? the only way to talk to a staff member anymore is to report something, but even then, the probably won't even look at what they're deleting :/

May I have brainliest please? :)

Answer:

There are 6.02*10^23 atoms in each mole (Avagadro no.) That is x moles * avagadro no. According to that, in 23 grams of sodium we have 6.02*10^23 atoms of Na.

Explanation:

The kinetic energy of an object is half of the product of mass and square of velocity. Then, for a person with a kinetic energy of 1800 J and velocity of 12 m/s is 25 kg.

Kinetic energy of an object is generated by virtue of its motion. It is related to the mass and velocity by the expression as follows:

Ke = 1/2 m v².

Thus, as the mass or velocity increases, kinetic energy increases.

Given velocity of the person = 12 m/s

kinetic energy = 1800 J

1/2 m v² = 1800 J

The mass of the person can be then calculated as follows:

m = 2 Ke/v²

m = 1800 J × 2 / (12 m/s)²

m = 25 Kg.

Therefore, the mass of the person is 25 Kg.

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We are unable to directly determine the work performed by the engine because the distance over which the force acts is unknown.

This indicates that the effort expended to increase the car's speed will be equivalent to the change in kinetic energy of the vehicle. Thus, 30 kJ of effort must be performed.

The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea.

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Answer:

A

Explanation:

The kinetic energy decreases to half its original value.

 The changing the compound inequality x>-3 and x <3 from "and" to "or" change the solution set Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both inequalities, which includes all real numbers.

An compound  inequality is a statement that has two inequality statements joined by either the word "or" or the word "and." "And" indicates that both statements of the compound sentence are true at the same time. This is the overlap or intersection of the solution sets of the individual sentences.  

There are two types of additive inequality.

These compound inequalities sometimes appear as two simple inequalities separated by the word AND or OR. When solving compound "and/or" inequalities, begin by solving each inequality separately.

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Answer:)

Sample Response: Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both

Explanation:) hope this helps have a great day !:).

Brainliest would be very very appreciated.

Answer:

I believe its called the periosteum , its a thin , dense membrane that contains  nerves and blood vessels .

Hoped I helped-

Sleepy~

Answer:

Explanation:

According to equation of motion;

\sum F = ma

m is the mass of the body

a is the acceleration

\sum F = Fm - Ff (along the horizontal)

Fm is the moving force

Ff is the frictional force

Given;

Fm = 12N

Ff = nR = nmg

Ff = n(4)(9.8)

Ff = 39.2n

Substitute the given value into the expression above;

Fm - Ff = ma

12 - 39.2n = 4(2)

-39.2n = 8-12

-39.2n = -4

n = 4/39.2

n = 0.1

Hence the coefficient of kinetic friction between the table and jug is 0.1

The period of a wave is the time it takes for one complete wave to pass a fixed point. We are given that 4 complete waves pass a fixed point in 10 seconds.

To find the period, we can divide the total time by the number of complete waves:  10 seconds ÷ 4 waves = 2.5 seconds per wave


To determine the period of a water wave, we need to know how much time it takes for one complete wave to pass a fixed point. In this case, 4 complete waves pass in 10 seconds.

Step 1: Find the time it takes for one complete wave to pass.
Divide the total time (10 seconds) by the number of complete waves (4 waves).

10 seconds / 4 waves = 2.5 seconds

Step 2: Identify the corresponding answer choice.
The period of the water wave is 2.5 seconds, which corresponds to answer choice C.

Your answer: C: 2.5 s

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Answer:

It means that person can do work or can posses energy at a rate of 550 watts.

Or : can posses energy of 550 joules in one second.

Explanation:

\({ \bf{power = \frac{work}{time} }}\)

Space telescopes have the advantage of being above the blurring effects of the Earth's atmosphere.

A surrounding is a layer of fuel or layers of gases that envelop a planet and is held in a region through the gravity of the planetary frame. A planet retains its surroundings whilst the gravity is exceptional and the temperature of the surroundings is low. A stellar ecosystem is the outer area of a celeb, which includes the layers above the opaque photosphere; stars of low temperature may have outer atmospheres containing compound molecules.

The atmosphere of Earth consists of nitrogen (78%), oxygen (21%), argon (0.9%), carbon dioxide (0.04%), and trace gases. most organisms use oxygen for breathing; lightning and bacteria perform nitrogen fixation to provide ammonia that is used to make nucleotides and amino acids; flora, algae, and cyanobacteria use carbon dioxide for photosynthesis.

The layered composition of the ecosystem minimizes the damaging results of daylight, ultraviolet radiation, solar wind, and cosmic rays to defend organisms from genetic harm. The modern composition of the atmosphere of the Earth is made from billions of years of biochemical modification of the paleo atmosphere by residing organisms.

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Answer:

the heart

Explanation:

length time width is hearts for captain americas sheild sirs iro

Answer:

because if it's won't be wider so the building have a chance to be distracted in any distuction

that's why they are made wider..

The difference in pressure between the wide and narrow ends of the tube is 2102.96 Pa.

The difference in pressure between the wide and narrow ends of the tube if an incompressible liquid is flowing through a tube that suddenly narrows and increases its velocity is calculated as follows. We have to apply Bernoulli's equation to find the difference in pressure.Bernoulli's equation:P1 + 0.5 ρ v1^2 = P2 + 0.5 ρ v2^2P1 and P2 represent the pressure at points 1 and 2, respectively. ρ is the liquid's density, while v1 and v2 are the liquid's velocity at points 1 and 2, respectively.

The pressure difference is:P1 - P2 = (1/2) ρ (v2^2 - v1^2)P1 is the pressure at the wide end of the tube, which is equivalent to the ambient pressure, which we'll take as 1 atm. The velocity at the wide end of the tube, v1, is 1.4 m/s. The velocity at the narrow end of the tube, v2, is 3.2 m/s. Density, ρ, is equal to 1065 kg/m³, as mentioned in the question.

P1 - P2 = (1/2) ρ (v2^2 - v1^2)P1 - P2 = (1/2) (1065 kg/m³) (3.2 m/s)^2 - (1.4 m/s)^2P1 - P2 = 3028.62 Pa - 925.66 PaP1 - P2 = 2102.96 Pa.

Therefore, the difference in pressure between the wide and narrow ends of the tube is 2102.96 Pa.An incompressible liquid is a fluid that does not compress significantly and is therefore not affected by pressure changes.

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