When voltage sources are connected in series, the total voltage is equal to the algebraic sum of the individual voltages.a. trueb. false

Answers

Answer 1

The third rule of a series circuit states that the sum of the individual voltages equals the total voltage.

These demonstrate the truth of the previous claim, which reads, "When voltage sources are connected in series, the overall voltage is equal to the algebraic sum of the individual voltages?"

The supply voltage is equal to the total of the component voltages in a series circuit. The voltages across each component in a series circuit are proportional to their resistances. This means that when two similar components are linked in series, the supply voltage is divided equally.

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Related Questions

a) calculate the magnitude of the force parallel to surface 1 b) calculate the magnitude of the force parallel to surface 2

Answers

a) the magnitude of the force parallel to surface 1 is 6.13 N

b) the magnitude of the force parallel to surface 2 is 4.02 N.

Force Parallel to both Surfaces

The gravitational force acting on each object is given by F = m * g

where m is the mass of the object

and g is the acceleration due to gravity (g = 9.8 m/s^2 on the surface of the earth).

Let's call the force parallel to surface 1 F1, and the force parallel to surface 2 F2.

a) To calculate the magnitude of F1:

F1 = m1 * g * cos(angle of elevation of surface 1)

m1 = .800 kg (mass of object on surface 1)

angle of elevation of surface 1 = 40 degrees

F1 = .800 kg * 9.8 m/s^2 * cos(40) = 6.13 N (approx.)

b) To calculate the magnitude of F2:

F2 = m2 * g * cos(angle of elevation of surface 2)

m2 = .500 kg (mass of object on surface 2)

angle of elevation of surface 2 = 55 degrees

F2 = .500 kg * 9.8 m/s^2 * cos(55) = 4.02 N (approx.)

So, the magnitude of the force parallel to surface 1 is 6.13 N and the magnitude of the force parallel to surface 2 is 4.02 N.

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37. Un beisbolista atrapa una bola 3. 0 s después de lanzarla verticalmente hacia arriba. ¿Con qué rapidez la lanzó y qué altura alcanzó?


A baseball player catches a ball 3. 0 s after throwing it vertically upwards. With what speed did he throw it and what height did it reached?

Answers

Por lo tanto, la pelota fue lanzada con una velocidad inicial de 14.7 m/s y alcanzó una altura máxima de 11.3 m.

¿Cuál es la velocidad?

Generally, Para resolver este problema, necesitamos conocer la relación entre la velocidad inicial con la que se lanza la pelota y la altura máxima que alcanza. Podemos usar las ecuaciones de movimiento para un objeto que se mueve verticalmente con aceleración constante.

Primero, consideremos el momento en que la pelota es lanzada. En ese momento, la velocidad inicial de la pelota es v0, que es lo que estamos buscando. Usando la ecuación de posición vertical:

y = v0t - 1/2gt^2

donde y es la altura alcanzada, t es el tiempo transcurrido, y g es la aceleración debido a la gravedad (-9.8 m/s^2), podemos despejar v0 en términos de y y t:

v0 = (y + 1/2gt^2) / t

Ahora, consideremos el momento en que la pelota es atrapada, 3.0 s después de ser lanzada. Sabemos que en ese momento, la velocidad vertical de la pelota es cero, ya que está en su punto más alto. Usando la misma ecuación de posición vertical, pero estableciendo y = 0 y v = 0, podemos encontrar el tiempo que tarda la pelota en llegar a su altura máxima:

0 = v0t - 1/2gt^2

t = 2v0/g

Sustituyendo este valor de t en la ecuación anterior, podemos encontrar la altura máxima que alcanza la pelota:

y = v0(2v0/g) - 1/2g(2v0/g)^2

y = v0^2/2g

Ahora podemos calcular los valores numéricos. Si asumimos que la altura a la que el jugador atrapa la pelota es la misma que la altura máxima alcanzada por la pelota, y tomamos g = -9.8 m/s^2, entonces:

v0 = (y + 1/2gt^2) / t = (0 + 1/2(-9.8 m/s^2)(3.0 s)^2) / 3.0 s = 14.7 m/s

y = v0^2/2g = (14.7 m/s)^2 / (2(-9.8 m/s^2)) = 11.3 m

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Which of the following statements concerning momentum is true?* A.Momentum is a scalar quantity. B.The momentum of an object is always positive. C.Momentum is a force. D.Momentum is a vector E.The SI unit of momentum is the Newton.​

Answers

The correct answer is D

if 120 waves produced per minute find the frequency​

Answers

The frequency of the wave, given that 120 waves were produced per minutes is 2 Hertz

How do I determine the frequency of the wave?

Frequency is defined as the number of complete oscillations made in 1 second.

From the question given above, the following were obtained:

Frequency (in per minute) = 120 waves per minuteFrequency (in per second) =?

Thus, to obtain the frequency (in per second), we shall convert 120 waves per minute to per second. Details below:

1 wave per minute = 1/60 wave per second

Therefore,

120 wave per minute = 120 × 1/60

120 wave per minute = 2 waves per second

120 wave per minute = 2 Hertz

Thus, we can conclude from the above calculation that the frequency is 2 Hertz

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I need help figuring this question out?

Answers

The momentum of the driver is  1,750 kgm/s.

What is the momentum of the driver?

Momentum refers to an object's tendency to maintain its velocity (or speed) in a straight line unless acted upon by an external force.

The magnitude of momentum is determined from the product of mass and velocity of the object.

The momentum of the driver is calculated as follows;

P = mv

where;

m is the mass of the driverv is the speed of the driver

P = 70 kg x 25 m/s

P = 1,750 kgm/s

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1.2 Determine the total displacement of the diagram in FIGURE 1. 123 m 20⁰ (3) 72 m​

Answers

The total displacement of the diagram in the velocity-time graph is 55 m.

What is the total displacement?

To find total displacement from a velocity-time graph, the area under the curve of the graph is calculated.

Considering the given figure:

The area under the velocity-time graph is composed of two triangles ABF & DCE having area A₁ & A₂ respectively, and a rectangle BEIF having area A3.

The area of A₁ = (2- 0) × (5 - 0)/2 = 5 m

The area of A₂ = (10 - 5) × (10 - 6)/2 = 10 m

The area of A₃ = (5 - 0) * (10 - 2) = 40 m

The total area under the curve = A₁ + A₂ + A₃

The total area under the curve = 5 + 10 + 40 =

The total area under the curve = 55 m

Therefore, the total displacement is 55 m.

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Can someone answer this question about Compton effect?

Answers

The Compton effect can be explained on the basis of the quantum theory of light and the wave theory of scattered radiation, hence option B is correct.

What is the Compton effect?

The compton effect, photoelectric effect, and blackbody radiation are described by the quantum theory of light, while interference and diffraction are explained by the wave nature of light.

It causes X-rays and other powerful electromagnetic radiations to have longer wavelengths after being elastically dispersed by electrons.

Therefore, the compton effect, also known as Compton scattering, is the primary mechanism by which radiant energy is absorbed in the matter.

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The given question is incomplete, so the most probable complete question is,

Can someone answer this question about the Compton effect?

The Compton effect can be explained on the basis of __________

a) Wave nature of light

b) Quantum theory of light

c) Ray optics

d) Wave optics

During the vietnam war, journalists _____. Select two choices. Called the military's press briefings "five o'clock follies" accepted the u. S. Government's justification for the war could not interview american soldiers while serving did not witness any combat on a firsthand basis.

Answers

During the Vietnam War, journalists often referred to the military's press briefings as "five o'clock follies" because they felt that the information provided was often incomplete or misleading.

The two choices that are correct are:

•Called the military's press briefings "five o'clock follies"

•Did not witness any combat on a firsthand basis.

. Additionally, due to the dangers of the conflict, many journalists did not have the opportunity to witness combat on a firsthand basis.

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A walker covers a distance of 2.4 km in a time of 30 minutes. What is the average speed of the walker for this distance in km/h?

Answers

Answer:

find the average speed in km/h, we need to convert the time from minutes to hours, then divide the total distance by the total time.

First, let's convert the time from minutes to hours:

30 minutes ÷ 60 minutes/hour = 0.5 hours

Next, we can calculate the average speed:

2.4 km ÷ 0.5 hours = 4.8 km/h

So the average speed of the walker for this distance is 4.8 km/h.

A given gene sequence contains 49 adenine base pairs. How many thymine bases will be included in the rna strand?.

Answers

This is because RNA uses uracil instead of thymine, so the complementary base pair for adenine in RNA is uracil, not thymine. Therefore, the RNA strand transcribed from the given gene sequence would contain 49 uracil base pairs, not thymine.

In DNA, adenine always pairs with thymine and cytosine always pairs with guanine. However, in RNA, the base uracil replaces thymine, and adenine always pairs with uracil instead.

Therefore, when a gene sequence containing 49 adenine base pairs is transcribed into an RNA strand, the RNA strand will contain 49 uracil base pairs. This is because each adenine in the DNA strand will pair with a uracil during transcription.

It's important to note that transcription is the process by which DNA is used as a template to create RNA. During transcription, the DNA sequence is "read" by an enzyme called RNA polymerase, which creates an RNA strand by adding nucleotides one at a time in a complementary manner. In this case, the RNA polymerase would add uracil nucleotides to the growing RNA strand to match the adenine nucleotides in the DNA strand.

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Which statement is true about light?
A. Light always travels in a straight line.
B. Light never travels in a straight line
C. Light is circular.

Answers

Answer: A. Light always travels in a straight line.

Explanation: Light follows rectilinear motion. Rectilinear motion is also known as linear motion. For example; the motion of a bullet fired from a gun, a ray of the torch.

Light always travels in a straight line. It is considered to travel from one point to another in a straight line joining them. The path of light is called a ray of light.

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A block of mass kg is initially sliding up the incline and is increasing in speed with acceleration m/s2. the applied force is horizontal, as shown. the coefficients of friction between the block and the incline are and . the angle of the incline is 25.0 degrees. (a) what is the force ? [140,160] n (b) what is the normal force between the block and incline? [125,140] n (c) what is the force of friction on the block? [35,50] n

Answers

(a) The force is 12 N. (b) The normal force between the block and incline is  46.2 N. (c) The force of friction on the block is 12 N.

We can solve this problem using Newton's laws of motion and the equations of motion for objects on inclined planes.

(a) To find the force applied to the block, we can use the equation:

[tex]F_a_p_p_l_i_e_d = m * a[/tex]

here,[tex]F_a_p_p_l_i_e_d[/tex] is applied force,

m is mass of the block, and

a is acceleration of the block.

Reserving values:-

[tex]F_a_p_p_l_i_e_d = (5.2 kg) * (2.3 m/s^2) = 12 N[/tex]

Therefore, the force applied on block is 12 N.

(b) To find the normal force between the block and the incline, we can use the component of the force of gravity that is perpendicular to the incline:-

[tex]F_n_o_r_m = m * g * cos\theta[/tex]

here,

m is mass of the block,

g is acceleration due to gravity, and

theta is angle of the incline.

Reserving values:-

[tex]F_n_o_r_m = (5.2 kg) * (9.81 m/s^2) * cos25.0 = 46.2 N[/tex]

Therefore, the normal force between the block and the incline is about 46.2 N.

(c) To find the force of friction on the block, we need to compare the applied force to the maximum frictional force that the surface can provide, which is given by:

[tex]F_f_r_i_c_t_i_o_n_,_m_a_x = mu * F_n_o_r_m[/tex]

here, mu is coefficient of friction and

[tex]F_n_o_r_m[/tex] is normal force.

The force of friction acts in the opposite direction to the motion of the block, so it will be downhill in this case. If the block is moving uphill, then the force of friction would be uphill instead.

Reserving values:-

[tex]F_f_r_i_c_t_i_o_n_,_m_a_x = (0.26) * (46.2 N) = 12.0 N[/tex]

Since the applied force of 12 N is equal to the maximum frictional force, the block will slide with a constant velocity. Therefore, the force of friction on the block is 12 N.

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How do you think scientists discovered that the flowering time of the field mustard had changed?.

Answers

Answer:

Explanation:

Because the scientists still had seeds from the pre-drought mustard plants collected in 1997, they were in a perfect position to find out whether the change in flowering time was really due to evolution. They grew pre-drought seeds alongside seeds collected from the exact same sites in 2004, after the drought.

There are many ways that scientists could have discovered that the flowering time of the field mustard had changed. One possible way is through direct observation and monitoring of the plant's growth and development over time. Another possible way is through the analysis of historical records or herbarium specimens.

What is mustard?

Mustard is a plant species that belongs to the Brassicaceae family, which also includes other common plants such as broccoli, cabbage, and cauliflower. The mustard plant is characterized by its small yellow flowers, which grow on a tall stem with leaves that are either lobed or unlobed.

Mustard has been cultivated for centuries for its seeds, which are used to produce mustard condiments, as well as for its leaves, which are used in salads and as a cooked vegetable. There are several different varieties of mustard, including white mustard (Sinapis alba), brown mustard (Brassica juncea), and black mustard (Brassica nigra).

Flowering timing refers to the time when a plant produces flowers, which is an important aspect of its life cycle. The timing of flowering can be influenced by several factors, including environmental conditions such as temperature, light, and water availability, as well as genetic factors.

Flowering timing is important for plant reproduction, as it determines when the plant will produce seeds. In many plant species, the timing of flowering is also influenced by environmental cues such as day length, which can trigger the plant to flower at specific times of the year.

Understanding flowering timing in plants is important for agriculture, as it can help farmers optimize crop yields by selecting the right varieties of plants for specific growing conditions and by manipulating environmental factors to promote optimal flowering. It is also an important area of research in plant biology, as scientists seek to understand the genetic and molecular mechanisms that control flowering timing in different plant species.

Here in the question,

There are several ways that scientists could have discovered that the flowering time of the field mustard had changed. One possible way is through direct observation and monitoring of the plant's growth and development over time.

For example, scientists may have regularly visited a field of mustard plants and recorded the timing of flowering for several years. By comparing the data from different years, they could have detected changes in the flowering time of the plants.

Another possible way is through the analysis of historical records or herbarium specimens. Herbarium specimens are dried and pressed plants that are stored in a collection for scientific study. By examining herbarium specimens collected from the same location over time, scientists could determine whether there had been any changes in the timing of flowering.

Additionally, researchers may have used satellite imagery to track changes in vegetation over time. By analyzing changes in the color and density of vegetation in a particular area, they could detect changes in the timing of flowering for different plant species, including field mustard.

Therefore, there are many different methods that scientists could have used to discover changes in the flowering time of field mustard, and it is likely that a combination of these methods was used to confirm the change.

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Which sample of water will contain the smallest amount of heat energy?
10 g at 10°C
20 g at 10°C
20 g at 20°C
20 g at 40°C

Answers

Answer:

10 g at 10°C

Explanation:

Answer:

10 g at 10°C

Explanation:

Heat energy is directly proportional to the mass and the temperature of a substance. When comparing two samples of the same substance, the one with higher mass contains more heat energy. Similarly, a substance with higher temperature contains more heat energy compared to the same substance with a lower temperature.

In this case, the smallest amount of heat energy would be in the sample of 10g at 10°C. This is because it has the lowest mass and temperature compared to the other three options.



ALLEN

3.1 Displacement, Velocity, and Acceleration

A turtle's velocity changes from v₁ = 1.0 mm/s at 0 = 0° to v₂ - 1.2 mm/s at 0= 20°. What is the change in the turtle's velocity?

Answers

Answer:

Explanation:

Displacement, velocity, and acceleration are fundamental concepts in physics that describe the motion of objects.

Velocity is a vector quantity that describes the rate of change of an object's position in a particular direction. It is defined as the displacement (the change in position) divided by the time it took to cover that displacement.

Acceleration is the rate of change of velocity, or the rate at which an object changes its speed or direction of motion. It is a vector quantity that is defined as the change in velocity divided by the time it took to achieve that change.

The change in velocity, also known as the delta velocity, is the difference between the initial velocity (v₁) and the final velocity (v₂). In this case, the change in velocity can be calculated as follows:

Δv = v₂ - v₁ = 1.2 mm/s - 1.0 mm/s = 0.2 mm/s

So, the turtle's velocity changes by 0.2 mm/s from 1.0 mm/s to 1.2 mm/s at 0=20°.

In summary, velocity describes the rate of change of an object's position, acceleration describes the rate of change of velocity, and the change in velocity is the difference between the final and initial velocities.

A simple circuit contains a 9 V battery connected with wires to a small light bulb. If the current through the bulb is 0.025 A, what is the resistance of the bulb?

Group of answer choices

360 ohms

15 ohms

127 ohms

0.225 ohms

Answers

Answer:

[tex]\huge\boxed{\sf R = 360\ ohms}[/tex]

Explanation:

Given data:

Potential Difference = V = 9 V

Current = I = 0.025 A

Required:

Resistance = R = ?

Formula:

V = IR (Ohm's Law)

Solution:

V = IR

Divide I to both sides

[tex]\displaystyle \frac{V}{I} = R[/tex]

Put the given data

9/0.025 = R

360 ohms = R

OR

R = 360 ohms

[tex]\rule[225]{225}{2}[/tex]

how much power does it take to lift 55 N 3 m high in 12.00 s

Answers

The amount of power it takes to lift 55N 3 m high in 12.00s is 13.75 Watts.

How to calculate power?

The power needed to lift an object can be calculated by dividing the work done on the object by the time taken as follows:

Power = work done ÷ time

However, the work done on an object can be calculated by multiplying the force on the object by the distance moved.

Work done = force × distance

Work done = 55N × 3m = 165J

Power = 165J ÷ 12s = 13.75Watts

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If you stood atop a ladder on Earth that was as tall as Earth's radius (so you were twice as far from
Earth's center) your weight atop the ladder would be

a.half its normal value
b. one-eighth its normal value
C. one-quarter its normal value d.
d.none of the above

Answers

Your weight at the top of the ladder would be one-quarter of its normal value. The correct option is C.

What is the acceleration due to gravity?

The gravitational pull of the Earth, denoted by g, is the net acceleration imparted to objects by the combined effect of gravitation and centrifugal force. It is a vector quantity whose direction corresponds to a plumb bob and whose strength or magnitude is determined by the norm.

The formula for gravity is,

g = GM / R²

g = 1 / R²

gt = 1 / (2R)²

gt / g = R² / 4R²

gt = 1 / 4g

Therefore, at the top of the ladder, your weight would be one-quarter of its normal value.

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A 1500 kg car traveling east at 20 m/s collides with a moving 2500 kg truck moving 30 m/s west..  After they collide, the two interlock and move together.  What was the final velocity of the truck? (Hint-momentum is a vector and direction matters, use + or - values as appropriate)* A. 11.25 m/s west B. 11.25 m/s east C. 32.6 m/s east D. 32.6 m/s west​

Answers

Answer:cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Explanation:

A 0.0272 kg arrow is fired with a velocity of 87.3 m/s from a 0.0245 kg bow. Determine the equivalent impulse value imparted on the arrow. (hint: you can also use newton's third law of motion)* A.2.37 Ns
B.3.11 Ns
C.113.5 Ns
D.214.2 Ns​

Answers

The equivalent impulse value imparted on the arrow is 2.37 Ns,

option A

What is the impulse imparted?

The equivalent impulse value imparted on the arrow can be determined using the equation for impulse, which is given by;

Impulse = force x time.

Since the arrow is moving with a constant velocity, the time during which the force is applied can be determined using the principle of conservation of momentum. The change in momentum of the arrow-bow system is equal to the impulse applied to the arrow, and the force applied to the arrow is equal to the recoil force experienced by the bow.

The initial momentum of the arrow-bow system is equal to the mass of the arrow times its velocity. The final momentum of the arrow-bow system is equal to the mass of the bow times its recoil velocity.

The change in momentum of the arrow-bow system is given by:

Δp = pf - pi = (m_bow * v_recoil) - (m_arrow * v_arrow)

The impulse applied to the arrow is equal to the change in momentum of the arrow-bow system:

impulse = Δp = (m_bow * v_recoil) - (m_arrow * v_arrow)

Using the given masses and velocities, we can calculate the impulse:

impulse = (0.0245 kg) * (87.3 m/s) - (0.0272 kg) * (87.3 m/s) = 2.37 Ns

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Which statements are inconsistent with Dalton’s atomic theory as it was originally stated? Why?
a. All carbon atoms are identical.
b. An oxygen atom combines with 1.5 hydrogen atoms to form a water molecule.
c. Two oxygen atoms combine with a carbon atom to form a carbon dioxide molecule.
d. The formation of a compound often involves the destruction of one or more atoms.

Answers

Statement b and d are inconsistent with Dalton's atomic theory.

Dalton's atomic theory, as originally stated, includes the following postulates:

All matter is made up of tiny, indivisible particles called atoms.

All atoms of a given element are identical in mass and properties.

Compounds are formed when atoms of different elements combine in fixed ratios.

Chemical reactions involve the rearrangement of atoms; no atoms are created, destroyed or changed into atoms of another element.

Statement b contradicts postulate 3 by suggesting that a water molecule is formed from 1.5 hydrogen atoms and 1 oxygen atom. However, in Dalton's theory, atoms combine in whole-number ratios to form compounds.

Statement d contradicts postulate 4 by suggesting that the formation of a compound involves the destruction of one or more atoms. However, in Dalton's theory, atoms are neither created nor destroyed in chemical reactions. Instead, they are rearranged to form new compounds.

Statement a and c are consistent with Dalton's atomic theory as all atoms of a given element are identical in mass and properties and compounds are formed when atoms of different elements combine in fixed ratios.

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A 9. 0-v battery is connected to a resistor so that there is a 0. 50-a current through the resistor.

Answers

A resistor is connected to a 9.0V battery with a 0.50A current flowing through it. Then the resistance is 18 Ω.

When a 9.0-volt battery is connected to a resistor, an electric field is created that pushes electrons through the resistor. The voltage of the battery represents the potential energy that each electron has when it enters the circuit, while the resistor creates a resistance that slows down the flow of electrons. According to Ohm's law, the current (I) through a resistor is directly proportional to the voltage (V) applied across it and inversely proportional to the resistance (R) of the resistor. The relationship can be expressed as:

I = V / R

In this case, the current is given as 0.50 A, and the voltage of the battery is 9.0 V.

= R

= V / I

= 9.0 V / 0.50 A

= 18 Ω

So the resistor in the circuit has a resistance of 18 ohms, and it is causing a current of 0.50 A to flow through it when the 9.0-volt battery is connected.

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Question - A 9. 0-v battery is connected to a resistor so that there is a 0. 50-a current through the resistor. Then the resistance is?

An 8.7 hour trip is made at an average speed of 73.0 km/hr. If the first third of the trip (chronologically) was driven at 96.5 km/hr, what was the average speed for the rest of the journey?

Answers

The average speed for rest of the journey = (632.1 - 281.55) / 5.8  km/hr = 88.4 km/hr.

What is average speed?

Average speed is a measure of the rate of change of a certain distance traveled over a period of time. It is usually calculated by dividing the total distance traveled over time, usually in hours, minutes, or seconds. Average speed is a measure of the average rate of motion, not necessarily the actual speed at any given moment.

Let the total distance covered be D. Time taken for first third of the journey = 8.7/3 hrs = 2.9 hrs
Distance covered in first third of the journey = 2.9 * 96.5 km/hr = 281.55 km
Therefore, distance covered in rest of the journey = D - 281.55 km
Time taken for rest of the journey = 8.7 - 2.9 hrs = 5.8 hrs
Average speed for rest of the journey = (D - 281.55) / 5.8  km/hr
Substituting the value of D = 8.7 hrs * 73 km/hr = 632.1 km
Therefore, average speed for rest of the journey = (632.1 - 281.55) / 5.8  km/hr = 88.4 km/hr

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A ball with momentum must also have?​

A. Kinetic energy
B.Thermal energy
C.Gravitational potential energy
D.Elastic energy​

Answers

It needs to have kinetic energy in order for it to move

aInfinite Sheets of Charge | 1|2 In both cases shown below, the colored lines represent positive (blue) and negative (red) charged planes. The magnitudes of the charge per unit area on each plane is the same. Case A Case B 1) In which case is the magnitude of the electric field at point P bigger? Case A Case B They are the same Submit (Survey Question) 2) Explain your reasoning Submit

Answers

Because the charge densities per unit area on every plane are equal. Hence, the strength of the electric field around point P is the same in situations A and B.

Explain the electric filed due to infinite line of charge?

Gauss' law can be used to determine the electric field of such an infinite line charge with such a uniform linear charge density.

The electric field is of equal strength at each point of a cylinder and thus is pointed outward when a Gaussian surface with radius r is modeled as a cylinder.

We discovered that electric field is radially oriented away as from line charge and that its strength decreases in inverse proportion to its distance.

The colored lines in the two instances below denote the positive (blue) and negative (red) charged planes, respectively.Because the charge densities per unit area on every plane are equal.

Hence, the strength of the electric field around point P is the same in situations A and B.

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2. A tank of water containing 2500 L of water is stored on the roof of a building. Find its potential energy with respect to the floor, which is 12.0m below the roof. b) Find its potential energy with respect to the basement, which is 4.0 m below the first floor (use g=10m/s²) Ans: a)3×105J b)4×105 60​

Answers

The gravitational potential energies are 300 kJ and 400 kJ respectively

What is the gravitational potential energy?

Gravitational potential energy is a form of potential energy that an object possesses due to its position relative to a reference point in a gravitational field. It is defined as the amount of work that must be done to move an object from its current position to a reference point, without changing its speed or direction.

The gravitational potential energy of an object can be calculated using the formula:

For the first case;

Note that the mass of  2500 L is 2500 Kg

With respect to the floor;

2500 Kg * 10 * 12 = 300 kJ

With respect to the basement;

2500 * 10 * 16 = 400 kJ

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A child of mass 30 kg sits on a wooden carosel. The wooden horse is 7.0m from the center of the carousel, which rotates at a constant rate and completes one revolution every 14.1 seconds. What are the magnitude and direction D|p|/dt, the parallel component dp/dt for the child?

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The magnitude of the parallel component of the velocity is 1.4 m/s

The direction is in the direction of rotation of the carousel.

What is the velocity of the child?

The velocity of the child can be calculated using the equation for centripetal acceleration:

a = v^2 / r

where

a = centripetal acceleration (m/s^2)v = velocity of the child (m/s)r = distance from the center of the carousel to the child (m)

Rearranging the equation to solve for velocity:

v = √(ar)

The centripetal acceleration is equal to the square of the angular velocity, w, multiplied by the radius:

a = w^2 x r

where

w = angular velocity (radians/s)

Since the carousel completes one revolution every 14.1 seconds, the angular velocity can be calculated as:

w = 2π / T

w = 2π / 14.1

Now we can calculate the centripetal acceleration:

a = w^2 x r

a = (2π / 14.1)^2 x 7.0

a = 1.41 m/s²

Finally, we can use this value to calculate the velocity of the child:

v = √(ar)

v = √(1.41 x 7.0)

v = 3.14 m/s

The magnitude of the velocity is the scalar value, or the size of the velocity vector without direction.

The direction of the velocity is perpendicular to the radial line connecting the child to the center of the carousel. It is in the direction that the child is moving.

The parallel component of the velocity is in the direction of the rotation of the carousel and can be calculated using the projection of the velocity onto a line tangent to the circle.

dp/dt = v dθ/dt

where

dθ/dt = angular velocity (radians/s)

Substituting the values for velocity and angular velocity:

dp/dt = vw

= 3.14 x (2π / 14.1)

v = 1.4 m/s

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Please help, I don't know how to draw a force triangle!!! Please help with explanation!​

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(a) Equilibrium is a state in which sum of all the forces acting on an object in a particular direction is zero.

(b) The triangle vector is in the image uploaded.

(c) The value of tension 1 and tension 2 are 191.4 N and 160.58 N.

What is meant by equilibrium?

Equilibrium is the condition of a system when neither its state of motion nor its internal energy state tends to change with time.

The value of the tensions, T1 and T2 is calculated as follows;

The sum of the vertical forces is calculated as follows;

T1 sin(50) + T2 sin(40) - 250 sin(90) = 0

0.766T1 + 0.643T2 - 250 = 0

0.643T2 = 250 - 0.766T1

The sum of the horizontal forces is calculated as follows;

-T1 cos(50) + T2 cos(40) + 250 cos(90) = 0

-0.643T1 + 0.766T2 + 0 = 0

0.766T2 = 0.643T1

T2 = (0.643T1) / (0.766)

T2 = 0.839T1

0.643 (0.839T1) = 250 - 0.766T1

0.54T1 + 0.766T1 = 250

1.306T1 = 250

T1 = 250 / 1.306

T1 = 191.4 N

T2 = 0.839T1

T2 = 0.839 x (191.4 N)

T2 = 160.58 N

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What is the case of hose pipe in Newton's third law of motion?

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Newton's third law of motion states that "for every action, there is an equal and opposite reaction." In the case of a hose pipe, this law applies to the forces involved in the flow of water through the hose.

When water is flowing through the hose, it is being accelerated by the pressure difference between the inlet and outlet of the hose. As the water moves through the hose, it exerts a force on the walls of the hose, pushing them outwards. This is the "action" described in Newton's third law.

According to the law, there must be an equal and opposite "reaction" force. In this case, the reaction force is the force that the hose exerts on the water. The force of the hose pushing outwards is equal and opposite to the force of the water pushing inwards.

This reaction force is what allows the water to flow through the hose. Without it, the water would not be able to move through the hose and would instead remain stationary.

So, in summary, in the case of a hose pipe, Newton's third law of motion applies to the forces involved in the flow of water through the hose. The force that the water exerts on the hose is equal and opposite to the force that the hose exerts on the water, and this allows the water to flow through the hose.

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an arrow is shot from the top of a30m cliff straight up in the air at an initial speed of 15m/s.Find the height at which the arrow moves downward at a speed of 8m/s​

Answers

The initial speed of the arrow is 15 m/s and the arrow is shot from the top of a 30 m cliff. The height at which the arrow moves downward at a speed of 8 m/s can be calculated using the equation of motion:

H = 30 + (15^2 - 8^2) / (2 * 9.8)

H = 30 + (225 - 64) / 19.6

H = 30 + 161 / 19.6

H = 30 + 8.2

H = 38.2 m

Therefore, the height at which the arrow moves downward at a speed of 8 m/s is 38.2 m.
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