A block slides down a smooth inclined surface and the gap between the block and the surface contains viscous fluid. Assume the velocity distribution in the gap is linear, and the area of the block in contact with the vicious fluid remains constant. If you increase the inclined angle, the terminal velocity will Group of answer choices

Answer:

slow twitch fibers

Explanation:

Slow twitch fibers can maintain a force for a longer period of time than fast twitch fibers

The figure given in the question shows a circuit with resistors that are not all in parallel or series. As a result, it will be necessary to determine the equivalent resistance of each group of resistors separately.

The groups of resistors in this circuit are as follows:R2 and R3 are connected in series, and their equivalent resistance can be calculated using the following equation:

R23 = R2 + R3

= 47 Ω + 100 Ω

= 147 Ω

R5 and R6 are connected in series, and their equivalent resistance can be calculated using the following equation:R56 = R5 + R6 = 150 Ω + 47 Ω = 197 ΩR23 and R4 are connected in parallel, and their equivalent resistance can be calculated using the following equation:

1/R234 = 1/R23 + 1/R4

= 1/147 Ω + 1/220 Ω

= 0.0105 ΩR234

= 95.238 Ω

Finally, R1 and R56 are connected in series, and their equivalent resistance can be calculated using the following equation:

R156 = R1 + R56

= 100 Ω + 197 Ω

= 297 Ω

Therefore, the equivalent resistance of the entire circuit is

R = R156 + R234

= 297 Ω + 95.238 Ω

= 392.238 Ω

= 3.92 × 10² Ω (expressed to three significant figures).

Therefore, the equivalent resistance of the circuit is 3.92 × 10² Ω.

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The resultant direction of the vectors A, B, and C is 78.11 degrees

To find the resultant direction of the vectors, we need to add them together using vector addition. Vector addition involves both the magnitudes and angles of the vectors.

Given:

A = 275.0 m, going north

B = 453.0 m, 62.00 degrees

C = 762.0 m, 129.0 degrees

First, we convert the given angles to positive angle direction by adding 360 degrees:

Angle of B in positive angle direction = 62.00 degrees + 360 degrees = 422.00 degrees

Angle of C in positive angle direction = 129.0 degrees + 360 degrees = 489.0 degrees

Next, we add the vectors A, B, and C using their components. Since A is going directly north, it has no horizontal component, so its north component is simply its magnitude (275.0 m). The north component of B is B * sin(angle) = 453.0 m * sin(422.00 degrees) = -316.22 m, and the north component of C is C * sin(angle) = 762.0 m * sin(489.0 degrees) = -651.38 m.

To find the resultant north component, we add the north components of the vectors:

Resultant north component = 275.0 m - 316.22 m - 651.38 m = -692.6 m

Similarly, we find the east component for each vector. The east component of B is B * cos(angle) = 453.0 m * cos(422.00 degrees) = -250.85 m, and the east component of C is C * cos(angle) = 762.0 m * cos(489.0 degrees) = -332.09 m.

To find the resultant east component, we add the east components of the vectors:

Resultant east component = -250.85 m - 332.09 m = -582.94 m

Using the resultant north and east components, we can find the magnitude and direction of the resultant vector:

Resultant magnitude = sqrt((-692.6 m)^2 + (-582.94 m)^2) = 914.5 m

Resultant direction = atan((-582.94 m) / (-692.6 m)) = 78.11 degrees (in positive angle direction)

Therefore, the resultant direction of the vectors A, B, and C is 78.11 degrees (in positive angle direction).

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The magnitude of the emf induced in the coil is 0.096 volts, and the current induced in the coil, considering an effective resistance of 20 ohms, is 0.0048 amperes.

Faraday's law of electromagnetic induction states that when a magnetic field changes in intensity or when a conductor moves in a magnetic field, an electromotive force (emf) is induced in the conductor. This induced emf is proportional to the rate of change of the magnetic field or the rate at which the conductor cuts the magnetic field lines.

Now, let's calculate the values requested:

a. To calculate the magnitude of the emf induced in the coil, we can use the formula:

emf = N * A * B * sin(θ)

Where:

N = number of turns in the coil = 100 turns

A = area of each turn of the coil = 4.8 x 10^(-4) m²

B = magnetic field strength = 4 x 10^(-4) T

θ = angle between the magnetic field and the normal to the plane of the coil = 30°

Plugging in the values:

emf = 100 * 4.8 x 10^(-4) * 4 x 10^(-4) * sin(30°)

Calculating this expression will give you the magnitude of the emf induced in the coil.

b. To calculate the current induced in the coil, we can use Ohm's Law:

emf = I * R

Where:

emf = electromotive force induced in the coil (calculated in part a)

R = effective resistance of the coil = 20 ohms

Rearranging the formula:

I = emf / R

Substituting the values calculated in part a:

I = (emf calculated in part a) / 20 ohms

Calculating this expression will give you the current induced in the coil.

a. Using the formula for the magnitude of the induced emf:

emf = 100 * 4.8 x 10^(-4) * 4 x 10^(-4) * sin(30°)

emf = 100 * 4.8 x 10^(-4) * 4 x 10^(-4) * 0.5

emf = 0.096 volts

Therefore, the magnitude of the emf induced in the coil is 0.096 volts.

b. Using Ohm's Law:

I = emf / R

I = 0.096 volts / 20 ohms

I = 0.0048 amperes

So, the current induced in the coil, considering an effective resistance of 20 ohms, is 0.0048 amperes.

Hence, The magnitude of the induced emf in the coil is 0.096 volts, and the current induced in the coil is 0.0048 amperes, assuming an effective resistance of 20 ohms.

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The initial velocity of the first boat is \(\frac{7456 -8m_1}{m_1 + 907}\)

The  initial velocity of the second boat is \(8 - ( \frac{7456 -8m_1}{m_1 + 907})\)

The principle of conservation of linear momentum states that the total momentum of an isolated system is always conserved.

The initial velocity of each boat is calculated by applying the principle of conservation of linear momentum as follows;

\(m_1 u_1 +m_2u_2 =m_ 1v_1 + m_2 v_2\)

let the mass of the first boats = m1

mass of the second boat = 907 kg

\(m_1 (-u_1 )+ 907 (u_2 )= (m_1-25)(8) + (907 + 25) (0)\\\\-m_1u_1 + 907 u_2 = 8m_1 - 200\\\\200 + 907u_2 = 8m_1 + m_1u_1\\\\200 + 907u_2 = m_1(8 + u_1) \ \ ---(1)\)

Apply one direction velocity equation

\(u_1 + v_1 = u_2 + v_2\\\\-u_1 + 8 = u_2 + 0\\\\u_2 = 8 - u_1 \ \ \ ---(2)\)

solve one and two together

\(200 + 907(8 - u_1) = m_1(8 + u_1)\\\\200 + 7256-907u_1 = 8m_1 + m_1 u_1\\\\7456 -907u_1 = 8m_1 + m_1 u_1\\\\7456 -8m_1 = m_1 u_1 + 907u_1\\\\7456 - 8m_1 = u_1 (m_1 + 907)\\\\u_1 = \frac{7456 -8m_1}{m_1 + 907}\)

m1 is the mass of the boat 1 (not given)

\(u_2 = 8 - (\frac{7456 -8m_1}{m_1 + 907} )\)

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Answer:

6kgm/s

Explanation:

Given parameters:

Mass of block = 2kg

Velocity  = 3m/s  

Unknown:

Momentum = ?

Solution:

Momentum is the amount of velocity a body possess. It is a vector quantity.

 Momentum  = mass x velocity  

Now insert the parameters and solve;

  Momentum  = 2 x 3  = 6kgm/s

A fighter jet being launched from such an aircraft carrier using a steam-powered catapult and its own engines. Its engines produce 2.3 x 105 N of thrust.

What speed is reached when a jet fighter aircraft is fired from a slingshot on an aircraft carrier?

42 m/s On an aircraft carrier, a catapult is used to launch a jet fighter. Just at end of the sling, it takes 2 seconds to achieve velocity of 42 m/s. What is the catapult's length if the acceleration is constant?

How strong is the aircraft carrier's catapult?

Catapults A 48,000-pound aeroplane was launched 300 feet and increased in speed from 0 to 165 miles an hour in two seconds by four steam-powered catapults. On every

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Due to atmospheric solar radiation absorption and scattering, the amount of radiation reaching the surface in a 1-layer atmosphere is enhanced by a factor of two.

Without an atmosphere, the amount of radiation reaching the surface is equal to the amount that the Sun emits. The single-layer atmosphere model accurately depicts the fundamental physical mechanisms causing atmospheric warming, however model-related numerical figures should be treated with caution. Note that there are two sources of the energy that is released into space. Energy balance models (EBMs) are remarkably simplified representations of the climate system that offer valid conceptual aids in comprehending climatic changes. The radiation budget, which accounts for both the Sun's incoming energy and its outgoing energy, determines the global temperature.

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Answer:

Moving a magnet around a coil of wire, pushes the electrons in the wire and creates an electrical current.

Answer:

An Alphabet with an arrow on top

Explanation:

Vectors are denoted by alphabets in boldface or alphabets with arrows above them

Answer:

x=48.12 m

Vf=23.544 m/s

Explanation:

a=g

t=2.4

Vf=?

Vø=0

Vf=Vø+at

Vf=0+(9.81)(2.4)=23.544

x=Xø+Vøt+1/2at^2

x=1/2at^2

x=(1/2)(9.81)^2=48.11805

The magnitude of the resultant force is 10.40 KN.

The problem is based on the concept of concurrent coplanar forces. The value of the resultant forces in the vertical direction is to be equated to zero to calculate the value of the angle.

The summation of the forces in the horizontal direction will provide the value of the resultant force in the horizontal direction.

Concurrent coplanar forces these forces emerge from a common point. These forces work in a common plane. The resultant of these forces in a direction is the sum of the forces in that direction.

The resultant force for a coplanar concurrent unidirectional force system is expressed as,

F=F+F, +F

Here, F, F2, and F3  are the unidirectional concurrent coplanar forces and are the resultant of the forces.

The resultant force will be equal to the sum of the forces in the horizontal direction.

FR = (8 kN)sin +(6 kN) sin(40°)

Substitute 54.939  for.

FR = (8 kN) sin(54.93°) +(6 kN)sin (40°) = 10.40 KN

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Answer:

The average densities of both matches the expected density for objects made from water ice.

Explanation:

Charon's density is 1.2 to 1.3 g / cm3, while Pluto's density is 1.8 to 2.1 g / cm3. This was discovered in many researches and measurements of these two celestial bodies, with the objective of understanding them and promoting efficient scientific knowledge.

With the measurements of the average densities between pluto and Charon it was possible to conclude several statements about them. Firstly, it is possible to see that the two formed independently and at different times, in addition to indicating the existence of few rocks in charon, which is consistent with the average density of objects made mostly of water ice.

Answer:

8.89 secs

Explanation:

720m = 1 sec

6400m = ?

6400/720 = 8.89 secs

Answer:

because carbon 14 has only a short half life, rather than other elements with longer half lives.

Explanation:

✨science✨

Answer:

it means that velocity of a body rises by 9.8m/s each second if the air resistance is nrelated

mark me

The protostellar outflows, which are high-speed jets of gas ejected from young stars, can collide with the surrounding gas in the molecular cloud and create shock waves.

As the protostellar outflows slam against the gas in the molecular cloud, they create a disturbance that propagates through the gas, creating a shock wave. This shock wave is a region where the gas undergoes a sudden increase in pressure, temperature, and density. The energy released by the collision between the outflow and the gas is converted into kinetic energy of the gas particles, which move at extremely high speeds and collide with other gas particles, creating a cascade of collisions that heats up the gas.

The magnetic field in the shocked gas can be inferred from the polarization of the light emitted by the gas. When light passes through a magnetized medium, it gets polarized, meaning that the electric field of the light wave oscillates preferentially in a certain direction. By measuring the polarization of the light emitted by the shocked gas, astronomers can deduce the orientation and strength of the magnetic field in the gas. This technique is called polarization mapping and has been used to study the magnetic fields in various astrophysical objects, including protostellar outflows.
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Answer:

no it is not safe to smoke

Answer:

well its not affecting you lungs or anything. the only way it will affect you is if you eat to much smarties or you choke on it. so yeah it is safe to smoke smarties

Explanation:

If a person gets into the rowboat, the water level at the edge of the pool will rise slightly. This is because the weight of the person adds to the weight of the boat and displaces more water, causing the water level to rise.

The amount of the rise in water level will depend on the weight of the person and the size of the boat. Similarly, if objects are added to the boat, the water level at the edge of the pool will also rise. However, if the boat is empty and just floating in the pool, it will displace a certain amount of water and the water level at the edge of the pool will be at the marked level.

Overall, the water level in the pool is determined by the amount of water displaced by the rowboat and any additional weight that is added to it.

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Answer:

Also, water also makes its way into the atmosphere via a process called transpiration in which plants release water into the air from their leaves that was pulled up from the soil through roots. Collectively, the water evaporated from the land and from plants is called evapotranspiration.

Explanation:

If this helps brainlist me...

Answer:

B

Explanation: a chemical reaction is only the rearrangement of electrons where a nuclear reaction actually changes the elements and thus the nuclei

Answer:

The nuclei of the atoms are changed by the reaction.

Explanation:

Just took the test.

Answer:

539 N

Explanation:

Fg = mg

Step 1: Define

Fg = ?

m = 55.0 kg

g = 9.8 m/s²

Step 2: Substitute and Evaluate

Fg = 55.0 kg(9.8 m/s²)

Fg = 539 N

Answer:

  A.  35 °C

Explanation:

You want to know which of the temperatures 5, 10, 15, or 35 °C is most favorable to mosquito breeding.

Mosquitos are nonfunctional below 50 °F (10 °C), and are lethargic at 60 °F (15.6 °C). They prefer 29 °C, and their breeding falls off at higher and lower temperatures.

Of the temperature choices offered, mosquitos would breed fastest at 35 °C.

The beam of light from the lighthouse is moving at a speed of approximately 10π km/minute along the shoreline when it is 1 km away from point P.

To determine the speed at which the beam of light from the lighthouse is moving along the shoreline when it is 1 km away from the point P, we need to consider the relationship between angular velocity, linear velocity, and distance.

Given that the lighthouse makes five revolutions per minute, we can determine its angular velocity (ω) using the formula:

ω = 2πn

where n is the number of revolutions per unit of time. In this case, n is equal to 5 revolutions per minute. Substituting the values, we have:

ω = 2π * 5 = 10π radians per minute

Now, to find the linear velocity (v) of the beam of light along the shoreline, we can use the relationship between angular velocity, linear velocity, and distance. This relationship is given by:

v = r * ω

where r is the distance from the center of rotation (in this case, the lighthouse) to the point at which we want to measure the velocity.

In this scenario, the distance from the lighthouse to the shoreline (point P) is given as 3 km. However, we are interested in finding the velocity when the beam of light is 1 km from point P. Therefore, we need to consider a new distance (r) of 1 km.

Substituting the values into the equation, we have:

v = 1 km * (10π radians per minute)

v = 10π km/minute

Therefore, the beam of light from the lighthouse is moving at a speed of approximately 10π km/minute along the shoreline when it is 1 km away from point P.

In summary, the speed of the beam of light from the lighthouse along the shoreline is determined by the angular velocity of the lighthouse and the distance from the center of rotation to the point of interest. In this case, with an angular velocity of 10π radians per minute and a distance of 1 km, the beam of light is moving at a speed of approximately 10π km/minute.

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231198 J of heat are needed to evaporate 102.3 grams of H2O(l).

It is possible to determine the amount of heat needed to evaporate 102.3 g of H2O(l) as follows:

The value in equation (1) should be replaced as follows:

Therefore, 231198 J of heat are needed to evaporate 102.3 grams of H2O(l).

The heat of  vaporization for water at its typical boiling point of 100 oC is 2260 J g-1. This means that 2260 calories are required to turn 1 g of water into 1 g of steam at 100 oC.

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Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

In conclusion, it would require approximately 441000π Nm of work to pump all the water out of the tank.

To calculate the work required to pump all the water out of the tank, we need to consider the volume of the water and the force needed to lift it.
First, let's find the volume of the water in the tank. The tank is shaped like a cone with a height of 7 meters and a base radius of 3 meters. The volume of a cone can be calculated using the formula

V = (1/3) * π * r^2 * h,

where r is the radius and h is the height. Plugging in the values, we get

V = (1/3) * π * 3^2 * 7 = 63π cubic meters.
Since the density of water is given as 10000 N/m^3, the weight of the water in the tank is equal to the volume multiplied by the density, which is

63π * 10000 = 63000π N.
To find the work required to pump out the water, we need to calculate the force needed to lift it. The force required to lift an object is equal to its weight, which in this case is 63000π N.
Work is calculated by multiplying the force applied to an object by the distance over which the force is applied. In this case, the force is applied to lift the water from the bottom of the tank to the top, which is a distance of 7 meters.
Therefore, the work required to pump all the water out of the tank is equal to the force multiplied by the distance, which is

63000π * 7 = 441000π Nm.
In conclusion, it would require approximately 441000π Nm of work to pump all the water out of the tank.

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