two tiny particles having charges 20.0 μc and -8.00 μc are separated by a distance of 20.0 cm. what are the magnitude and direction of electric field midway between these two charges? (k

Answer:

Ans :- 3.1415

The value of ππ correct to 55 significant figures is 3.1415

Answer:

solar

Explanation:

this is a form of solar panel

Closed eyes improve performance as they reduce distractions and focus on the task at hand, but may decrease performance due to reliance on visual cues and muscle memory.

Novices may find it easier to concentrate on their body's motion and internal feelings when their eyes are closed. Additionally, it can lessen anxiety and distracting visuals, which will make the performer feel more at ease and assured when performing the exercise. Experts, however, rely significantly on visual feedback to make corrections and keep their balance in midair, thus doing so while performing a somersault could be detrimental to their performance.

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Answer:

<7

Explanation:

This is a reaction between a steong acid and a weak base which produces a acidic salt at equvalence point. Hence pH is less than 7

While large proteins and cells are kept in the blood as long as the kidney filter is functioning normally, small blood molecules freely enter Bowman's space.

By keeping the vital plasma proteins from the blood and ensuring selective ultrafiltration, the kidney glomerulus maintains its function. A fenestrated endothelium, GBM, and podocytes make up its three main parts, which together make up the glomerular filtration assembly.

Therefore, A glomerular filtrate is created when fluid and solutes from the blood are removed at the glomerulus in the nephron.

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The acceleration of this jet is equal to: C. 6.26 m/s².

In Physics, the acceleration of a physical object (jet) or body can be calculated by using this formula:

a = (V - U)/t

Where:  

Substituting the given parameters into the formula, we have;

Acceleration, a = (432.8 m/s - 138.5 m/s)/47 seconds

Acceleration, a = 294.3/47

Acceleration, a = 6.26 m/s².

In conclusion, we can logically deduce that this jet has an acceleration of 6.26 meters per seconds square (m/s²).

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Answer:

The combined velocity of Sally and the sled is 1.688 meters per second.

Explanation:

Let suppose that Sally collides inelasticly, meaning that final velocity of Sally-sled system can be determined solely by Principle of Momentum Conservation:

\(m_{S}\cdot v_{S, o} + m_{s}\cdot v_{s,o} = (m_{S}+m_{s})\cdot v\) (1)

Where:

\(m_{S}\) - Mass of Sally, measured in kilograms.

\(m_{s}\) - Mass of the sled, measured in kilograms.

\(v_{S,o}\) - Initial velocity of Sally, measured in meters per second.

\(v_{s,o}\) - Initial velocity of the sled, measured in meters per second.

\(v\) - Final velocity of the Sally-sled system, measured in meters per second.

If we know that \(m_{S} = 54\,kg\), \(m_{s} = 10\,kg\), \(v_{S,o} = 2\,\frac{m}{s}\) and \(v_{s,o} = 0\,\frac{m}{s}\), then the final velocity of the system is:

\(v = \frac{m_{S}\cdot v_{S,o}+m_{s}\cdot v_{s,o}}{m_{S}+m_{s}}\)

\(v = 1.688\,\frac{m}{s}\)

The combined velocity of Sally and the sled is 1.688 meters per second.

The voltage of a power supply and a light bulb are not necessarily equal due to the passive nature of the bulb and fluctuations in the power supply.

The voltage (v) of a power supply is not necessarily equal to the voltage across a light bulb because of the way that electrical circuits work. In a circuit, voltage is the measure of electrical potential energy that exists between two points. A power supply generates electrical potential energy, which flows through the circuit, providing the energy necessary for electrical components to function.

A light bulb, on the other hand, is a passive component that resists the flow of electrical current, converting the electrical energy into light and heat. When current flows through the light bulb, some of the energy is dissipated as heat and light, which reduces the voltage across the bulb.

Furthermore, the voltage of a power supply can fluctuate due to variations in the input voltage or changes in the load on the circuit. In contrast, the voltage across a light bulb is determined by the electrical properties of the bulb, such as its resistance and the amount of current flowing through it.

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Answer:

It is an essential concept of physics. In sports momentum term is commonly used. Like, if a team has the momentum then it is on the move and is going to take some effort to stop. But if a team has lot of momentum then it is really on the move and is going to be hard to stop

Explanation:

Answer:

hikknn says he is not happy birthday hun

The color of visible light that would have the least energy is red. On the other hand, the color of visible light that would have the most energy is violet.

This is because red light has the longest wavelength and the lowest frequency out of all the colors in the visible spectrum. Violet light has the shortest wavelength and the highest frequency out of all the colors in the visible spectrum.

This relationship between wavelength, frequency, and energy can be explained by the relationship between electromagnetic waves and energy. All electromagnetic waves, including visible light, have a certain amount of energy that is proportional to their frequency. The higher the frequency, the more energy the wave has.

This relationship can also be seen in the electromagnetic spectrum, where higher energy waves (such as X-rays and gamma rays) have shorter wavelengths and higher frequencies, while lower energy waves (such as radio waves) have longer wavelengths and lower frequencies.

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Answer:

I don't know sorry brother/sister

Explanation:

please mark as brilliant

The average force on the puck by the stick is 448 N

To find the average force on the hockey puck, we can use the impulse-momentum theorem:

Impulse = Change in momentum

The impulse on the puck can be calculated as:

Impulse = mass x change in velocity
Impulse = 0.16 kg x (9 m/s - (-5 m/s))
Impulse = 0.16 kg x 14 m/s
Impulse = 2.24 N*s

The change in velocity is negative because the puck is moving in the opposite direction after the impact.

The impulse on the puck is equal to the average force multiplied by the time of contact:

Impulse = average force x time
2.24 N*s = average force x 0.005 s
average force = 2.24 N*s / 0.005 s
average force = 448 N

Therefore, the average force is 448 N.

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Answer:

aye son yall think if i keep answering these questions incorrectly.. they'll find out what im doing and take my li points back?

Explanation:

At the inlet Mach number combustor of a supersonic combustion ramjet (SCRAMjet), the flow Mach number is supersonic is 0.2066R°.

To determine the inlet Mach number above which the flow will be unchoked in a supersonic combustion ramjet (SCRAMjet), additional information is needed. The provided information includes the fuel-air ratio, combustor exit temperature, and heat release per slug of fuel, but it does not directly provide the necessary data to calculate the inlet Mach number. The specific equation or relationship to determine the unchoked flow condition is not specified in the given question.

p1 = 10 atm, T1 = 1000 R, and M1 = 0.2.

Po1 = (1.028)*(10) = 10.28 atm, according to the Steam Table.

To1 = (1.008)*(1000) = 1008 ºR

Fuel-air ratio (by mass): 6006 ft-lb/slug; R = 1716 ft-lb/slug.

4.5 x 108 ft-lb/slugfx = FA slugf/slugaq (4.5 x 108)FA ft-lb/slug = FA slugf/sluga

Q is equal to cp(To2-To1) for air.

For M1=0.2, a constricted flow is considered to be (Exit flow - Inlet flow).

The given information includes the fuel-air ratio, combustor exit temperature, and heat release per slug of fuel. However, the specific equation or relationship required to calculate the inlet Mach number for unchoked flow is not provided in the question. The determination of the inlet Mach number would typically involve the use of equations related to compressible flow and the analysis of the flow properties.

To calculate the inlet Mach number for unchoked flow, additional data such as the specific heat ratio (k) at constant pressure and specific heat ratio (k) at constant volume would be needed. Additionally, the fuel-air ratio alone may not be sufficient to determine the flow properties and the unchoked condition.

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The worker will accelerate to the right with an acceleration of 0.22 m/s². (a): the worker will accelerate at 1.08 m/s² and the box will accelerate at 0.89 m/s², but in opposite directions.

By doing a running high jump, an athlete can only create a maximum vertical velocity of around 3–4 m/s, but a quick run-up can provide a horizontal take-off velocity of roughly 8–10 m/s.

F_net = ma

F_net_box = F_worker - F_gravity_box

F_net_box = 200 N - 1800 N

F_net_box = -1600 N

F_net_box = ma_box

-1600 N = 1800 kg * a_box

a_box = -0.89 m/s² (to the left)

For the worker, the net force acting on them is equal to the force they are applying to the box:

F_net_worker = F_push = 200 N

We can find the acceleration of the worker using Newton's second law:

F_net_worker = ma_worker

200 N = 900 kg * a_worker

a_worker = 0.22 m/s² (to the right)

Therefore, the worker will accelerate to the right with an acceleration of 0.22 m/s².

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The rate at which water is leaking out of the cone is approximately 16.76 cubic feet per minute (ft^3/min).

To determine the rate at which water is leaking out of the cone, we need to use the formula for the volume of a cone:

V = (1/3)πr^2h

where V is the volume of the cone, r is the radius of the base, and h is the height of the cone.

We also need to use the formula for related rates:

dV/dt = (∂V/∂h)(dh/dt)

where dV/dt is the rate at which the volume of the cone is changing, (∂V/∂h) is the partial derivative of the volume with respect to the height, and dh/dt is the rate at which the height of the water level is changing.

First, we need to find the radius of the cone. We can do this by using the fact that the depth of the water is 8 ft:

h = 8 ft

The cone is similar to the larger cone, so the ratio of the corresponding dimensions is the same:

r/h = 2/3

r = (2/3)h = (2/3)(8 ft) = 16/3 ft

Now we can find the volume of the cone at any time:

V = (1/3)πr^2h

V = (1/3)π[(16/3 ft)^2](h)

Next, we need to find the rate at which the height of the water level is changing:

dh/dt = -3 in/min

We need to convert this to feet per minute, since the other measurements are in feet:

dh/dt = -0.25 ft/min

Now we can find the rate at which water is leaking out of the cone:

dV/dt = (∂V/∂h)(dh/dt)

dV/dt = (2/3)πr^2(dh/dt)

dV/dt = (2/3)π[(16/3 ft)^2](-0.25 ft/min)

dV/dt ≈ -16.76 ft^3/min

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Answer:

brainless plsss

A hockey player is standing on his skates on a frozen pond, if he accelerates uniformly at 0.22 m/s2, the player will catch his opponent in 19.49 seconds.

Uniform Motion

The object's uniform motion should follow the following rules as provided

vt = vo + at

vt² = vo² + 2a . s

s = vo*t + 1/2*a*t²

Here vt is seen as the final velocity, vo = initial velocity

a= acceleration t= time and s= displacemnt

according to the question,

v = 2

t= 1.4

vo= 0 m/s

a = 0.22 m/s²

The distance between the players is seen as

Vt= 2x 1.4 = 2.8 m

The player will thus catch his opponent with the same distance. This means,

Sopponent = Splayer

so + vt = vo*t + 1/2 at²

⇒ 2.8 + 2.t = 0 . t + 1/2 . 0.22 . t²

⇒ 0.11t² - 2t - 2.8 = 0

⇒ t = 19.49 s

on solving the above quadratic equation, we calculate the possible root as 19.49 seconds.

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Answer:

Around \(1.4\) solar mass.

Explanation:

In a white dwarf, electron degeneracy prevents the star from collapsing into itself. However, if the mass of the star exceeds the Chandrasekhar Limit, gravity would overcome electron degeneracy and star would collapse further.

The value of the Chandrasekhar Limit is approximately \(1.4\; M_{\odot}\) (\(1.4\) times the mass of the sun.) While this mass is the maximum possible mass of a stable white dwarf, the original mass of the star that formed this white dwarf tends to be much greater.

Answer:

A.A

Explanation:

The balls usually bounce 60% of the original height because it stores 60% of the energy it had before the bounce. When a ball is dropped from a great height it has kinetic energy before it hits the ground which is the result of the bounce of ball. The size of ball does matter in this case, Large balls will bounce higher.

The Centre of gravity is the point on an object where the force of gravity is considered to act.

Every object that exists on the earth has weight and because of that weight, certain gravity acts on it. When we calculate the total weight of the object, mainly center is taken as the point where the whole weight of the object is accumulated.

for instance, in the seesaw, the middle portion of it acts as a center of gravity which balances out both sides.

It plays a very important role in calculating big and complex problems of gravitation. It simplifies calculations to treat the mass of an object as if it is concentrated at one point only. It is an imaginary point that stable the object.

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Answer:

light waves :)

Explanation:

To calculate the amount of coal the 100 MW power plant uses each day with a thermal efficiency of 41% and an energy content of 14,200 BTU/l b

1. Convert the power output to BTU/hour: 100 MW = 100,000 kW. Since 1 kW = 3,412 BTU/h, then 100,000 kW = 341,200,000 BTU/h.

2. Calculate the actual power output in BTU/hour considering the thermal efficiency: Actual output = 341,200,000 BTU/h * 0.41 (thermal efficiency) = 139,892,000 BTU/h.

3. Calculate the amount of coal needed per hour: Coal needed = 139,892,000 BTU/h / 14,200 BTU/l b = 9,854.366  l b s/h.

4. Convert the coal needed per hour to kg/h: Since 1 l b = 0.453592 kg, then 9,854.366 l b s/h = 4,469.135 kg/h.
5. Calculate the amount of coal needed per day: Coal needed = 4,469.135 kg/h * 24 hours = 107,258.844 kg/day.

So, the 100 MW power plant uses approximately 107,258.844 kg of coal per day.

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This is an effective example of Newton's third law. Because of the upward push of the floor, you jump higher and faster. A force of 2,295.9 N is exerted on an airplane weighing 1,500 N while it is accelerated at 15 m/s2.

As we leap, the chemical energy in our muscles is transformed into kinetic energy, which exerts a force on the ground and, according to Newton's third law, causes a reaction that "pushes" us up—leading to the jump. Mass times leap distance equals the typical force that results. A person's center of mass may experience a force from their legs of 1200 N while moving 0.3 m upward during a jump. Gravity, which pulls everything down and causes the bungee jumper to fall, is the first force that the jumper encounters. Almost perfectly constant throughout the trip is the gravitational pull. The force of air resistance is another factor the bungee jumper encounters throughout the descent.

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Answer:

Mass:  Choices 1, 2, 4, 6

Weight: Choices 3, 5, 7, 8

Hope this helped! Please mark Brainliest if correct.