The graph provided represents voltage and current data for resistor R. What is the resistance of R?

0.50 Ω
2.0 Ω
9.0
4.5
​

Answer: In a generator, the back and forth movement of electrons as the magnet spins and opposite poles of the magnet push the electrons in opposite directions is called Alternating Current (AC).

Explanation:

Answer:

alternating current and direct current

Explanation:

yall some of these questions arent that hard, use common sense

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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The two towers' heights are separated by 201.6 metr

The amount of space between two objects or points is expressed as distance. Several methods, such as linear, angular, and temporal distance, are available to measure it. In physics, math, and other sciences, distance is an important notion. It is employed to describe the size of physical phenomena, like the force of gravity or the speed of light. It can also be used to estimate the distance between two points in time or space. Distance can also refer to the spacing between two locations or people in everyday life.

To estimate the distance between the two towers' heights,we must use the Pythagorean Theorem. The square of the hypotenuse, or side opposite the right angle, is equal to the sum of the squares of the other two sides, according to the Pythagorean Theorem. The heights of the two towers are represented by the other two sides, and the hypotenuse in this case represents the distance between the tops (150 m and 136 m).

This equation can be written as a2 + b2 = c2, where a = 150 m, b = 136 m, and c = the separation between the summits of the two towers. By first squaring both a and b, and then subtracting the result from both sides of the equation, we can find c:

150² + 136² = c²\s22500 + 18496 = c²\s40996 = c²\sc

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Assuming the same pressure difference, the blood flow rate will be reduced by 49%.

Volumetric flow rate is calculated as follows;

Q = V/t

Q = πr³/t

r = d/2

r³ = d³/8

Q = πd³/8t

Q = ¹/₈ πd³/t

Q₁/d₁³ = Q₂/d₂³

Q₂ = d₂³(Q₁/d₁³)

d₂ = 100%d₁ - 21%d₁ = 79%d₁

Q₂ = (0.79d₁)³(Q₁/d₁³)

Q₂ = 0.49d₁³(Q₁/d₁³)

Q₂ = 0.49Q₁

Q₂ = 49%

Thus, assuming the same pressure difference, the blood flow rate will be reduced by 49%.

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The total distance covered by the car is 300 miles.

The total displacement covered by the car is zero.

The average speed of the car is 17.88 m/s.

The average velocity of the car is also zero.

Distance between the points A and B, d = 150 miles

Time taken by the car to travel from A to B, t₁ = 3 hours

Time taken by the car to travel from B to A, t₂ = 5 hours

a) Given that the car travelled from A to B and then back to A.

Therefore, the total distance covered by the car is,

Distance = 2 x d

Distance = 2 x 150

Distance = 300 miles

Since the car is travelling from A to B and then returning back to the initial point A, the total displacement covered by the car is zero.

b) The speed with which the car travelled from A to B is,

v₁ = d/t₁

v₁ = 150/3

v₁ = 50 miles/hr

v₁ = 22.35 m/s

The speed with which the car travelled from B to A is,

v₂ = d/t₂

v₂ = 150/5

v₂ = 30 miles/hr

v₂ = 13.41 m/s

Therefore, the average speed of the car is,

v = (v₁ + v₂)/2

v = (22.35 + 13.41)/2

v = 17.88 m/s

As, the total displacement of the car is zero, the average velocity of the car is also zero.

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Answer:

It determines how long you do a certain workout.

The initial velocity of the car is u = 0 m/s because the car starts from rest.

The acceleration of the car is a = \(2m/s^{2}\).

The instantaneous velocity is v = 16 m/s.

By applying the formula that connects the details that we have with the duration

a = v − u t

      t

we get the duration as follows

Make t the subject of the formula

    t = v − u

            a

=  16m/s− 0 m/s

      \(2M^{2}\)

= 8s.

The duration for that speed change is 8s.

Calculating acceleration involves dividing velocity by using time or in phrases of SI units, dividing the meter according to the second m/s by the second one. Dividing distance by time twice is the same as dividing distance via the rectangular of time. hence the SI unit of acceleration is the meter according to 2nd squared. If the acceleration is consistent, it's far viable to discover acceleration without time if we have the preliminary and final pace of the item as well as the amount of displacement. The system v2=u2+2as where v is the final velocity, u is the initial velocity, a is the acceleration and s is the displacement is used.

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\( \frac{4577}{7 \times (80 - ( - 12))} \\ \frac{4577}{7 \times92 } \\ \frac{4577}{644} \\ = 8.5g\)

The acceleration of a cheetah is higher than that of a Thomson's gazelle but lower than that of the space shuttle during takeoff.

The amount upon which velocity decreases is known as accelerate. Acceleration typically indicates that the speed is changing, but not necessarily. An item that is moving in a circle while maintaining a constant speed is still accelerating because the direction of its motion is shifting.

The measurement of a change in an object's velocity is known as acceleration. A car accelerates faster and quicker when the gas pedal is depressed. Acceleration is indicated by this change in velocity.

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4.44×\(10^{9}\) kg/s is the rate at which the sun mass is decreasing.

The Sun radiates energy through a process called nuclear fusion, where hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the process. According to Einstein's mass-energy equivalence principle (E=mc²), this energy release corresponds to a decrease in mass.

To calculate the rate at which the Sun's mass is decreasing, we can use the formula ΔE = Δmc², where ΔE is the change in energy, Δm is the change in mass, and c is the speed of light.

Given that the Sun radiates energy at a rate of 4×10^26 W, we can substitute this value into the equation as ΔE and solve for Δm.

ΔE = 4×10^26 W

c = 3×10^8 m/s (speed of light)

Using the equation ΔE = Δmc² and rearranging it, we get Δm = ΔE / c².

Substituting the values, we have:

Δm = (4×10^26 W) / (3×10^8 m/s)²

Evaluating this expression, we find that the rate at which the Sun's mass is decreasing is approximately 4.44×10^9 kg/s.

This calculation demonstrates that the Sun's mass is gradually decreasing as it continuously radiates energy into space, primarily through the process of nuclear fusion in its core.

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Answer:

3.35

Explanation:

Got it on Acellus

The light of wavelength 485 nm passes through a single slit. The single between the first (m=1) and second (m=2) interference minima is 3.36°.

Diffraction is the phenomenon of bending of waves through obstacles.  

Given is the wavelength λ= 485 nm, silt width d =  8.32 *10⁻⁶ m, then the angle θ will be

d sinθ =mλ

for m=1, sin θ₁ = λ/d

for m=2, sin θ₂ = 2λ/d

Substitute the values into both expressions to find the angles,

sin θ₁ = 485 x 10⁻⁹ /  8.32 *10⁻⁶

θ₁ = 3.34°

and sin θ₂ = (2 x  485 x 10⁻⁹ )/  8.32 *10⁻⁶

θ₂ = 6.7°

The angle between m =1 and m=2 will be

θ₂ -θ₁ = 6.7° - 3.34° =3.36°

Thus, angle between the first (m=1) and second (m=2) interference minima is 3.36°.

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Answer:

input force is force applied to overcome the load and the output force is the force overcome by the effort

Explanation:

effort is equal to input and load is equal to the output

Answer:351

Explanation:trust

A musical note has a frequency and the wavelength of the note. The speed of the sound of that note will be 351m/s. The correct option is G.

The frequency is the number of cycle per second.

The wavelength is related to frequency and speed as

f = v/λ

Given is the frequency f = 512Hz and wavelength λ= 0.685m, then the speed of note will be

v =512 Hz x 0.685m

v =350.72 m/s

Speed is approximately 35 m/s.

Thus,  the correct option is G.

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The arrows point away from a positive charge and towards a negative charge.

The electric field is a vector field, which means that it has both a magnitude and a direction. The magnitude of the electric field is a measure of how strong the field is, and the direction of the electric field is a measure of the direction in which the force would be exerted on a positive charge.

The brightness of the arrow in an electric field simulation is a representation of the magnitude of the electric field. The brighter the arrow, the stronger the electric field. When you check the "Direction only" box, the arrows will only show the direction of the electric field. This is because the "Direction only" box only shows the direction of the vector field, not the magnitude.

When you uncheck the box, the arrows will show both the direction and the strength of the electric field. This is because the "Direction only" box is unchecked, so the arrows will show the full vector field. The arrows point away from a positive charge and towards a negative charge because positive charges repel each other and negative charges attract each other.

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When you draw all 4 of those moves, you see that he winds up 9m North and 11m West of where he started.

So the magnitude of his displacement is

D = √(9² + 11²)  m²

D = √(81 + 121)  m²

D = √(202)  m²

D = 14.2 m

The direction is arctan(-11/9) = 50.7° west of North

Answer:

The vertical component of the velocity can be found using the formula:

V₀y = V₀ * sin(θ)

where V₀ is the initial velocity, θ is the angle of projection, and V₀y is the vertical component of the velocity.

Substituting the given values, we have:

V₀y = 48 * sin(53°)

Using a calculator, we can evaluate sin(53°) to be approximately 0.799:

V₀y = 48 * 0.799

V₀y ≈ 38.352

Therefore, the vertical component of the velocity with which the ball was launched is approximately 38 meters/second, which corresponds to option B.

Answer:

B.) 38 meters/second

Explanation:

Answer:

I can say words like cheese and balls

Given

Mass of the meteor, m=25000.0 kg

Mass of the satellite, m'=9600.0 kg

The speed of the meteor, v=250.0 m/s

The speed of the satellite, v'=375.0 m/s

To find

The speed after the collision

Explanation

Let the combined speed after collision be u.

a) they were initially moving towards each other

Let us consider the right direction to be positive.

Considering the meteor to be travelling towards the right and the satellite towards left.

By conservation of momentum

The combined speed is 76.58 m/s

b) they are moving in same direction

Let both the meteor and satellite moves towards the right direction

The combined speed is 284.68 m/s

Conclusion

a. The combined speed is 76.58 m/s

b. The combined speed is 284.68 m/s

Given,

The supply voltage, V=121.7 V

The current drawn by the oven, I=5.7 A

From Ohm's law, the voltage across a load is directly proportional to the current through the load.

Thus the voltage across the oven is given by,

Where R is the resistance of the oven when it is heated to the maximum temperature.

On rearranging the above equation,

On substituting the known values,

Thus the resistance of the oven when it's fully heated is 21.35 Ω

The velocity of the skater relative to the billboard is 5.65 m/s east.

The velocity of the skater relative to the billboard is the measure of the change in position of the skater with respect to the billboard. That is, how fast is the skater moving away from the billboard.

Considering the signs of east and west direction, the formula for the relative velocity of the Skater is given as;

Vs/B = Vs - VB

where;

The magnitude of the velocity of the skater in west direction is given as;

Vs = V cos ( θ )

where;

Vs = 24.94 m/s  x cos ( 90 - 38 )

Vs = 24.94 m/s x cos ( 52 )

Vs = 15.35 m/s

The velocity of the skater relative to the billboard is calculated as follows;

west = negative direction

east = positive direction

Vs/B = -15.35 m/s  -  ( -21 m/s )

Vs/B = 5.65 m/s

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Answer:

20.14 KG

Explanation:

apex keepy o heads up stay positive don't stress over something useless big future 4 all of yall!

The mass is 20.14 kg

After pushing the pumpkin hard, you find yourself reversing direction at a speed of 4.0 m/s. 3.0 seconds after being pushed, the pumpkin will slide 12 m. Assume you weigh 60.0 kg.

We can use the conservation of momentum to solve this problem. After the push, the momentum of the system is given by:

p = (449 kg + 60 kg) * v

where v is the speed of the pumpkin and you after the push. Since you end up sliding backward at 4.0 m/s, we have:

v = -4.0 m/s

Substituting this into the expression for momentum, we find:

p = (449 kg + 60 kg) * (-4.0 m/s) = -2036 kg·m/s

The negative sign indicates that the momentum of the system is in the opposite direction of your motion.

During the sliding motion, the net force on the system is given by:

Fnet = (449 kg + 60 kg) * g * sin(θ)

where g is the acceleration due to gravity (9.81 m/s^2) and θ is the angle of the ramp. Since the ramp is smooth and horizontal, θ = 0 and Fnet = 0. Therefore, there is no net force to change the momentum of the system.

Using the equation for motion with constant acceleration, we can find the distance the pumpkin slides in 3.0 seconds:

x = x0 + v0t + (1/2)at²

Since the initial speed of the pumpkin is -4.0 m/s and there is no net force acting on it, its speed remains constant during the slide. Therefore, v0 = -4.0 m/s and a = 0. Substituting these values, we find:

x = x0 + v0t = (-4.0 m/s) * (3.0 s) = -12 m

The negative sign indicates that the pumpkin slides in the opposite direction to your motion. Therefore, the pumpkin slides 12 meters backward (i.e., towards you) in 3.0 seconds after the push.

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The quantity of heat energy that must be transferred to 2.25 kg of brass to raise its temperature from 20 °C to 240 °C is 195030 J

First, we shall list out the given parameters from the question. This is shown below:

The quantity of heat energy that must be transferred can be obtained as follow:

Q = MCΔT

= 2.25 × 394 × 220

= 195030 J

Thus, we can conclude quantity of heat energy that must be transferred is 195030 J

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John Deere, a U.S. company, sells a tractor to a farmer in Canada. It is a  GDP category is net exports.

Farmers are the person who usually cultivates and grows crops. They often also have cattle farming also. These farmers earn money by selling the crops in the market.

As a person is exporting goods and services to the US market, then we can say that the person is an exporter of court. There is GDP which is gross domestic product the US company that sells the status to Canada will be termed as the net exporter and represented over in that category.

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Average velocity is total distance divided by total time. The magnitude of his average velocity for the entire trip is 23.15 m/s

Velocity is the distance travel in a specific direction per time taken. It is a vector quantity. And it is measured in m/s

If Billie travels 3.2 km due east in 0.1 hr, then 3.2 km at 15.0 degrees eastward of due north in 0.21 hr, and finally another 3.2 km due east in 0.1 hr. Then,

Billie total distance S travel = 3.2 + 3.2Cos 15 + 3.2

S = 9.49 Km

Billie total time T  = 0.1 + 0.21 + 0.1

T = 0.41 s

The magnitude of his average velocity for the entire trip = S/T

Average velocity = 9.49/ 0.41

Average velocity = 23.15 m/s

Therefore, the magnitude of his average velocity for the entire trip is 23.15 m/s

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An annotated bibliography is a list of citations to books, articles, and documents. Each citation is followed by a brief descriptive and evaluative paragraph, the annotation. The purpose of the annotation is to inform the reader of the relevance, accuracy, and quality of the sources cited.

The cue column is typically located on the left-hand side of the page and is used to jot down keywords or questions that serve as cues for recalling the main points of the lecture or reading. The note-taking area is located on the right-hand side of the page and is used to write down detailed notes about the lecture or reading.

The summary section is located at the bottom of the page and is used to summarize the key points of the notes. Overall, the Cornell method is an effective way to organize and retain information during lectures and readings.

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Answer:

220.87 N.

Explanation:

To determine the force F2 that is needed to balance the other forces and create a vertical resultant force with a magnitude of 373.15 N, we can use the principle of vector addition.

We know that the force F1 = 249 N acts at an angle of θ1 = 90° (upwards) relative to the horizontal.

We also know that F2 and F3 act at angles of θ2 = 26° and θ3 = 28° (arccos(5/3)) respectively, relative to the horizontal.

We can represent the forces F1, F2 and F3 using their horizontal and vertical components, using the following relationships:

F1x = F1 * cos(90) = 0 N

F1y = F1 * sin(90) = 249 N

F2x = F2 * cos(θ2)

F2y = F2 * sin(θ2)

F3x = F3 * cos(θ3)

F3y = F3 * sin(θ3)

the horizontal and vertical components of the resultant force, R, are the sum of the horizontal and vertical components of the individual forces.

Rx = F1x + F2x + F3x = F2 * cos(θ2) + F3 * cos(θ3)

Ry = F1y + F2y + F3y = F2 * sin(θ2) + F3 * sin(θ3) + 249 N

We know that the magnitude of the resultant force, R, is equal to 373.15 N and it is pointing upward (Ry direction)

R = sqrt(Rx^2 + Ry^2) = 373.15 N

Rx = 0 N (horizontal component is 0)

Ry = 373.15 N

From this equation and the fact that we know the value of F1y, we can find the value of F2y

F2y = Ry - F1y = 373.15 N - 249 N = 124.15 N

Using the equation of F2y = F2 * sin(θ2) we can find the value of F2

F2 = F2y / sin(θ2) = 124.15 N / sin(26) ≈ 220.87 N

So the force F2 that such that the resultant force is vertical with a magnitude of 373.15 N is 220.87 N.

It's worth to note that since the horizontal component of the resultant force (Rx) is 0, we don't know the value of F3 and it's not possible to find it.

The resistance of a platinum resistance thermometer is 200 Ω at 0°C and 255.8 Ω at the melting point. Using the resistance-temperature relationship and calculations, the estimated melting point is approximately 19.93°C.

The resistance of a platinum resistance thermometer is 200 Ω when placed in a 0°C ice bath and 255.8 Ω when immersed in a crucible containing a melting substance. To determine the melting point of the substance, we need to calculate the temperature at which the resistance reaches 255.8 Ω.

First, we find the temperature coefficient of resistance (α) using the formula α = (R - R₀) / (R₀ * T), where R is the resistance at the melting point, R₀ is the resistance at 0°C, and T is the temperature at the melting point.

Substituting the given values, we have α = (255.8 - 200) / (200 * T₀), where T₀ is the known room temperature of 20°C.

Calculating α, we find α ≈ 0.014.

Next, we use the resistance-temperature relationship equation R = R₀(1 + αT) to solve for the melting point temperature (T). Substituting the known values, we have 255.8 = 200(1 + 0.014 * T).

Simplifying the equation, we find 1.279 = 1 + 0.014T.

Solving for T, we get T ≈ 19.93°C.

Therefore, based on the given data, the estimated melting point of the substance is approximately 19.93°C.

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Answer: 1.7 kg (D) i think this is correct

Answer:

53,020

Explanation:

The proper time between two events is measured by clocks at rest in a reference frame in which the two events occur at the same coordinates. (Option B)

In physics and astronomy, a frame of reference or reference frame refer to an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points which are geometric points whose position is identified both mathematically (with numerical coordinate values) and physically (signaled by conventional markers). Hence, the proper time between two events is measured by clocks at rest in a reference frame in which the two events occur at the same coordinates.

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