because of wave refraction, erosion along an irregular coastline is greatest in the ; while deposition is greatest in the ; with the net result being that it straightens out the coastline. group of answer choices headlands; embayments embayments; headlands swash zone; breaker zone breaker zone; swash zone there is no erosion along a coast

Answer:

I think its conditioned response

(a) The average speed must you have for the second half of the trip to meet your goal is 8 km/h.

(b) The value obtained (8 km/h) is not reasonable for the second half of the distance since the first half is 48km/h.

Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.

average velocity = total distance / total time

v = (d)/(0.5d/v₁ + 0.5d/v₂)

where;

90 km/h = (d) / (0.5d/48 + 0.5d/v₂)

90(0.5d/48 + 0.5d/v₂) = d

0.9375d + 0.5d/v₂ = d

d(0.9375 + 0.5/v₂) = d

0.9375 + 0.5/v₂ = 1

0.5/v₂ = 0.0625

v₂ = 0.5/0.0625

v₂ = 8 km/h

Thus, the average speed must you have for the second half of the trip to meet your goal is 8 km/h.

The value obtained (8 km/h) is not reasonable for the second half of the distance since the first half is 48km/h.

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The total distance traveled by the gardener is 8 meters. the magnitude of total displacement is approximately 7 meters.

                                                                      = 8 meters

For the magnitude of displacement, we will take the shortest path for the gardener movement.

                              for displacement-

                                       \(=\sqrt{( 0-4^{2}) +( 6-0^{2} )}\\=\sqrt{52} \\=7\)(approximately)

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From the laws of Newton, the balls experiences an equal force directed in opposite directions.

Collision is said to occur when on object bumps into another. Collisions are described by the law of conservation of linear mometum which ststes that momentum is neither created nor destroyed.

The question is incomplete hence we can not fully answer the question. However, from the laws of Newton, the balls experiences an equal force directed in opposite directions.

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Answer:

To the extent that Stellar spectra look like blackbodies, the temperature of a star can also be measured amazingly accurately by recording the brightness in two different filters. To get a stellar temperature: Measure the brightness of a star through two filters and compare the ratio of red to blue light.

Explanation:

ANSWERS

a) R = 5.404 Ω

b) IR2 = 1.068 A

c) IR3 = 0.667 A

d) PR4 = 5.703 W

e) PR5 = 1.647 W

f) VR6 = 2 V

g) VR7 = 6.663 V

EXPLANATION

a) To find the equivalent resistance of the circuit we have to see which ones are connected in parallel and which ones are in series.

First we have R2 and R5 in series, so we can find en equivalent resistance that we'll call RA. Also R3 and R6 are series, so that equivalent we'll call RB:

Series resistances have to be added:

Then, resistances RB, R4 and RA are parallel. The equivalence we'll call Rc, as shown in the circuit on the right:

Finally R7 and RC are series, so the equivalent resistance of the circuit is:

For the following points I'll do them together and separate the information requested in each point.

Voltage across R7 is requested. We can find it with the equivalent circuit B, but first we have to know the total current through the circuit. This is the total equivalent circuit:

The total current is:

We can see in circuit B that Rc and R7 are in series so the current through them is the same. Also, this current is the total current I of the circuit. Therefore we can find the voltage across R7:

We can also use this to find the voltage across RC, which will help us find the currents in each resistance:

Now, since RB, R4 and RA are connected in parallel, the voltage across all of them is the same - which is VRC. With this information we can find the currents trough each of these three resistances:

Item d asks for the power in resistence R4 and item e the power used by R5, so now that we have the current in both of them we can find the power they use. Note that the current through R5 is the same as the current through RA, because RA is the equivalente of R5 and R2 in series:

Power used by R4 is:

We have the current through RB, which is the same as the current through R3 (item c) and R6 so we can find the voltage across R6 (item f):

We also have the current through R2 (item b) because is the same as the current through RA:

The surface density of atoms in the (1,1,1) plane of the BCC lattice is 0.16 atoms/angstrom².

To calculate the surface density of atoms in the (1,1,1) plane, we first need to determine how many atoms are in the plane. Since the plane passes through the center of the unit cell, it intersects one-eighth of each of the corner atoms and the full central atom. Therefore, the total number of atoms in the (1,1,1) plane is:

N_atoms = 1 + 8*(1/8) = 2

Next, we need to calculate the area of the (1,1,1) plane. To do this, we can consider the lengths of the sides of the unit cell. Since the BCC lattice has a cubic unit cell, all sides have length a=5 angstroms. The (1,1,1) plane passes through the center of the unit cell and intersects the sides at a 45-degree angle. The distance from the center of the unit cell to the midpoint of one of the sides is a/sqrt(2), so the length of the diagonal of the square face of the unit cell is 2a/√(2) = a√(2). The area of the square face is then (a√(2))² = 2a².

The (1,1,1) plane intersects the square face at a 45-degree angle, so its area is 2*a²/2 = a².

The surface density of atoms is the number of atoms per unit area. Dividing the number of atoms in the (1,1,1) plane by the area of the plane gives:

surface density = N_atoms / area

= 2 / a² = 2 / (5 angstroms)² = 0.16 atoms/angstrom²

Therefore, the surface density of atoms in the (1,1,1) plane of the BCC lattice is 0.16 atoms/angstrom².

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Answer:

A bag of blood with a density of 1050 kg/m4 is raised about 1.00 m higher than the level of a patient's arm. How much greater is the blood pressure at the patient's arm than it would be if the bag were at the same height as the army is the solisan of kind

The increase in the blood pressure in the patient's arm will be 11433.55 Pascal.

The power with which your heart pumps blood around your body is measured by your blood pressure. Blood pressure is expressed as two values in millimeters of mercury.

The given data in the problem is;

\(\rm V_1 = V_2\)

\(\rho\) is the density =  1050 \(Kg /m^3\)

h is the level of height higher than the level of a patient's arm = 1.00 m

From the Bernoullis equation the difference in pressure between the two points is found as;

\(P_1+0.5 \times \rho \times {V_1}^2+ \rho g h_1=P_2+0.5 \rho \times V_2 ^2 + \rho \times g \timews h_2\)

\(\rm V_1 = V_2\)

\(\rm P_2-P_1 = 1050 \times g \times (h_1-h_2) \\\\ \rm P_2-P_1 = 1050 \times 9.81 \times (1.11) \\\\ \rm P_2-P_1 =11433.55 \ Paacal\)

Hence the increase in the blood pressure in the patient's arm will be 11433.55 Pascal.

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Answer:produces red and white blood cells

Explanation: the bone marrow helps with the blood but cannot produce red and white blood cells

Answer:

"prevents movement of limbs and digits" is NOT a function of the skeletal system.

At 30°C, the rms speed of a sample of oxygen with a molar mass of 16 g/mol is approximately 482.34 m/s.

The root mean square (rms) speed of a gas molecule is a measure of the average speed of the gas particles in a sample. It can be calculated using the formula:

vrms = √(3kT/m)

Where:

vrms is the rms speed

k is the Boltzmann constant (1.38 x 10^-23 J/K)

T is the temperature in Kelvin

m is the molar mass of the gas in kilograms

To calculate the rms speed of oxygen at 30°C (303 Kelvin) with a molar mass of 16 g/mol, we need to convert the molar mass to kilograms by dividing it by 1000:

m = 16 g/mol = 0.016 kg/mol

Substituting the values into the formula, we have:

vrms = √((3 * 1.38 x 10^-23 J/K * 303 K) / (0.016 kg/mol))

Calculating this expression yields the rms speed of the oxygen sample:

vrms ≈ 482.34 m/s

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It take 1.33 second to a Dalmatian to accelerate from rest to its top speed.

Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).

given parameters:

initial speed, u = 0

final speed, v =16.5 m/s.

distance covered, s = 11 meters.

We have to find: time t = ?

We know that:

s = ut +(v-u)t/2

⇒ 11 = 0 + (16.5 -0)t/2

⇒ t = 22/16.5 second = 1.33 second.

So,  it take 1.33 second to a Dalmatian to accelerate from rest to its top speed.

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In your business plan, the target market section should clearly identify both your primary and secondary market(s). The market analysis is basically the target market section of your business plan. It is a thorough examination of the ideal people to whom you intend to sell your products or services.

Explanation:

The density of an object can be calculated using the formula as follows :

\(d=\dfrac{m}{V}\)

Here,

m is mass of the object and V is its volume

The mass of an object can b measured in grams and its volume in cubic cm. So, the density of object is measured in g/cm³. Hence, out of given options the possible value of density of an object is 6 g/cm³.

Answer:

The density of an object can be calculated using the formula as follows :

6 g/cm3

Explanation:

good luck xd

describe how electrons create electricity

Atoms are made up of even smaller elements, called protons, electrons and neutrons. When electrical and magnetic forces move electrons from one atom to another, an electrical current is formed

Electrons in atoms can act as our charge carrier, because every electron carries a negative charge. If we can free an electron from an atom and force it to move, we can create electricity. ... In its balanced state, copper has 29 protons in its nucleus and an equal number of electrons orbiting around it.

Hope It Helps!

Answer: You take the biggest number and subtract it from the smallest number.

Explanation: Hope this helps.

Answer:

Subtract the minimum data value from the maximum data value to find the data range.

Explanation:

\(Hope\) \(this\) \(helps!\)

Distance is the total path covered by the object

Here, 200 m is the distance covered by the person and NOT the displacement

Displacement of an object is nothing more than the shortest path between the initial and the final point

If the person travelled 100m and came back, his initial and final point will remain the same which means that he will have a displacement of 0 m

Answer:

5.49×10¯⁴ m²

Explanation:

From the question given above, the following data were obtained:

Distance (d) = 2.22×10¯⁴ m

Charge (Q) = 5.24×10¯⁹ C

Potential difference (V) = 240 V

Permittivity of free space (ε₀) = 8.85×10¯¹² F/m

Area (A) =?

Thus, the area of the plate can be obtained as follow:

Q = ε₀AV /d

5.24×10¯⁹ = 8.85×10¯¹² × A × 240 / 2.22×10¯⁴

5.24×10¯⁹ = 2.12×10¯⁹ × A / 2.22×10¯⁴

Cross multiply

2.12×10¯⁹ × A = 5.24×10¯⁹ × 2.22×10¯⁴

Divide both side by 2.12×10¯⁹

A = (5.24×10¯⁹ × 2.22×10¯⁴) / 2.12×10¯⁹

A = 5.49×10¯⁴ m²

Thus, the area of the plates is 5.49×10¯⁴ m².

Answer:

it's actually 5.48

Explanation:

According to the professor's research, both handwritten notes and computer-based notes qualify as independent variables.

The professor's study considers handwritten notes and computer-based notes to be independent variables. These other qualities will be examined to see if they change depending on note-taking technique, including better memory and exam recall.

What kinds of variables are the groupings for taking notes?

Because they are being examined for their potential to influence other factors, the note-taking groups that use handwritten and computerised notes are regarded as independent variables.

Better exam memory and recall are those other variables, and their changes in response to note-taking methodology will be investigated.

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Answer:

The answer is C!

Explanation:

Answer:

C- the modern atomic theory contains over 200 years of research.

Explanation:

The proportionality constant of the moving object experiencing a drag force is 0.01875 Ns²/m².

The work-energy principle states that the work done on an object is equal to its change in kinetic energy. So, the work done by the drag force can be found as follows:

W = (1/8)mv² - (1/2)mv₀²

where m = mass of the object, v = final speed, and v₀ = initial speed.

The work done by the drag force is also given by the formula:

W = ∫F(x)dx

where F(x) = force function and x = position of the object.

In this case, the force function is F(x) = -Cv², since the drag force is in the opposite direction of motion. So:

W = ∫-Cv²dx

Since the force is proportional to v², rewrite this as:

W = -C∫v²dx

Integrating both sides with respect to x:

W = -(1/3)Cv³

So, equating the two expressions for W:

(1/8)mv² - (1/2)mv₀² = -(1/3)Cv³

Substituting m = 0.01 kg, v₀ = 10 m/s, and solving for C:

C = -(3/8) × (m/v₀³) × (v² - v₀²) = -(3/8) × (0.01/10³) × (1/8 × 10² - 10²) = 0.01875 Ns²/m²

Therefore, the proportionality constant is C = 0.01875 Ns²/m².

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The line width is calculated as 121.6nm

Data;

This is used to calculate the wavelength of an electron when it moves from one state to another.

For Lyman series, n = 1

The energy difference in the two state transitioning are

\(n_2\) = ∞

The formula is given thus;

\(\frac{1}{\lambda}= R(1(n_1)^2 - \frac{1}{(n_1)^2}.Z^2\\\)

R = Rydberg's constant

Z = atomic number

Since the excited electron dropped from the 1st state to the ground state, the finest line of Lyman series would be

\(\frac{1}{\lambda} = R(1(1)^2 - \frac{1}{2^2}).1^2\\z=1\\\lambda = \frac{4}{3} * 912A^o\\\lambda = 121.6nm\)

The line width is calculated as 121.6nm

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Answer:

Antarctica is a desert. It does not rain or snow a lot there. When it snows, the snow does not melt and builds up over many years to make large, thick sheets of ice, called ice sheets. Antarctica is made up of lots of ice in the form of glaciers, ice shelves and icebergs.

The hiker travelled 4.02 km North/South and 4.74 km East/West during her hike.

This question involves vector addition, the resolution of vectors, the use of bearings, and trigonometry in the calculation of the hiker's movement.

This may appear to be a difficult problem, but with some visual aid and the proper use of mathematical formulas, the issue can be addressed correctly.

Resolution of VectorThe resolution of a vector is the process of dividing it into two or more components.

The angle between the resultant and the given vector is equal to the inverse tangent of the two rectangular components.

Angles will always be expressed in degrees in the solution.

The sine, cosine, and tangent functions in trigonometry are denoted by sin, cos, and tan.

The tangent function can be calculated using the sine and cosine functions as tan x = sin x/cos x. Also, in right-angled triangles, Pythagoras’ theorem is used to find the hypotenuse or one of the legs.

Distance Travelled North/SouthThe hiker traveled North for the first part of the hike and South for the second.

The angles that the hiker traveled in the first part and second parts are 53 degrees and 17 degrees, respectively.

The angle between the two is (180 - 53 - 17) = 110 degrees.

The angle between the resultant and the Northern direction is 110 - 53 = 57 degrees.

Using sine and cosine, we can calculate the north/south distance traveled to be 5 sin 57 = 4.02 km, and the east/west distance to be 5 cos 57 = 2.93 km.

Distance Travelled East/WestThe hiker walked East for the second part of the hike.

To calculate the distance travelled East/West, we must first calculate the component of the first part that was East/West.

The angle between the vector and the Eastern direction is 90 - 53 = 37 degrees.

Using sine and cosine, we can calculate that the distance travelled East/West for the first part of the hike is 5 cos 37 = 3.88 km.

To determine the net distance travelled East/West, we must combine this component with the distance travelled East/West in the second part of the hike.

The angle between the second vector and the Eastern direction is 17 degrees.

Using sine and cosine, we can calculate the distance traveled East/West to be 3 sin 17 = 0.86 km.

The net distance traveled East/West is 3.88 + 0.86 = 4.74 km.

Therefore, the hiker travelled 4.02 km North/South and 4.74 km East/West during her hike.

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To find the mass in kilograms, you need to know the object's weight in newtons and the acceleration due to gravity. The formula for finding mass is mass = weight / acceleration due to gravity. So if you have an object with a weight of 100 N and the acceleration due to gravity is 9.8 m/s^2, the mass would be 10.204 kg.

The mass of the block is 0.025 kg or 25 g, when the spring has k = 28 N/m, and compresses 0.11 m before bringing the block to rest.

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Answer:

400J/kg°C

Explanation:

The specific heat capacity will be 400 J/kg °C. Specific heat capacity is the relationship between the amount of energy delivered to a substance and the increase in temperature that results.

The amount of heat required to increase a substance's temperature by one degree Celsius is known as specific heat capacity.

Similarly

Mathematically, specific heat capacity is given by;

\(\rm C = \frac{E}{m \times \theta }\)

The given data in the problem is;

The specific heat of the substance is,C in J/kg °C.

The energy is,E =1000 JIs

The mass is,m= 25 g

\(\rm \theta\) Is the temperature difference =  100 °C.

On substituting the given data;

\(\rm C = \frac{E }{m \times \theta } \\\\ C = \frac{1000}{25\times 10^{-3} \times 100 } \\\\ C = 400 \ J/kg^0C.\)

Hence, the specific heat capacity will be 400 J/kg °C.

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Answer:

The remains of producers are broken down by decomposers.

The remains of consumers are broken down by soil decomposers.

Animals break down food molecules to obtain energy.

Explanation:

Answer:

It is A. B. and C.

Explanation:

Hope this helps

The dog starts from rest and has a speed of 2.10 m/s at the bottom. The height of the slope will be 0.225 m

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

The friction force prevents any two surfaces of objects from easily sliding over each other or slipping across one another. It depends upon the force applied to the object.

As there is almost zero friction between the total potential energy height is equal to the kinetic energy

m*g*h = 1/2* m*v²

Where m is the mass of the dog

g is the acceleration due to gravity,h is the height of the slope

v is the velocity of the sliding dog

g*h = 1/2* v²

9.81*h = 0.5* 2.1²

           =0.225 m

The height of the slope would be 0.225 m.        

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