the gtpase activity of g proteins is important because the g proteins are active only when gdp is bound to them. the phosphate that is released is also an important secondary messenger. hydrolysis of the phosphoanhydride bond to form gdp and inorganic phosphate provides energy for signal transduction. the phosphate is used by downstream kinases to phosphorylate target enzymes. it provides a method by which the initial signal can be terminated.

The output voltage required of a defibrillating device will be 1700 V.

Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.

Given data;

I = 17 mA=17×10⁻³ A

R = 1×10⁵ ohm

Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.

This current-voltage connection may be expressed mathematically as,

The Equation of Ohm's Law

V=IR

V =17×10⁻³ A×  1×10⁵ ohm

V = 17 × 10²

V = 1700 V

Hence,the output voltage required of a defibrillating device will be  1700 V

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\(\\ \rm\bull\rightarrowtail Displacement=Velocity\times Time\)

\(\\ \rm\bull\rightarrowtail Displacement=8(14)\)

\(\\ \rm\bull\rightarrowtail Displacement =112m\)

Answer:corrosion (i believe)

Explanation:

Answer

Mix baking soda and salt with hot water and cover everything with it. The proportions are not crucial, but about 1 tablespoon of salt and 1 tablespoon of baking soda to 3 dl water should do the trick. Lightly tarnished objects should clean up in a few minutes, and you just rinse them of and dry them.

Explanation:

To solve this problem, we need to use the equation for the acceleration of an electron in an electric field:

a = eE/m

Where a is the acceleration, e is the charge of the electron, E is the electric field strength, and m is the mass of the electron.

In this case, we know that the distance between the plates is 25 cm, so the electric field strength can be calculated as:

E = V/d = 5000/0.25 = 20000 V/m

Now we can calculate the acceleration of the electron:

a = (1.6 x 10^-19 C) x (20000 V/m) / (9.11 x 10^-31 kg) = 3.53 x 10^14 m/s^2

Next, we need to use the equations of motion to find the velocity of the electron when it reaches the opposite plate. Since the electron starts at rest, we can use the following equation:

v^2 = u^2 + 2as

Where v is the final velocity, u is the initial velocity (which is zero), a is the acceleration we just calculated, and s is the distance between the plates (25 cm = 0.25 m).

Substituting in the values, we get:

v^2 = 0 + 2 x (3.53 x 10^14 m/s^2) x 0.25 m = 4.41 x 10^14 m^2/s^2

Taking the square root of both sides gives us:

v = 2.10 x 10^7 m/s

So the velocity of the electron when it hits the opposite plate is approximately 21 million meters per second.
Hi! To find the velocity of the electron when it hits the opposite plate, we need to consider the electric potential difference (5000 V), the distance between the plates (25 cm), and the charge and mass of the electron.

First, convert the distance to meters: 25 cm = 0.25 m.

Next, use the formula for electric potential energy: PE = qV, where PE is potential energy, q is the charge of the electron, and V is the electric potential difference.

For an electron, q = -1.6 x 10^-19 C. Therefore, PE = (-1.6 x 10^-19 C)(5000 V) = -8 x 10^-16 J.

Since the electron starts at rest, all its potential energy will be converted to kinetic energy: KE = (1/2)mv^2, where m is the mass of the electron, and v is its velocity.

The mass of an electron is 9.11 x 10^-31 kg. Equating potential energy to kinetic energy:

-8 x 10^-16 J = (1/2)(9.11 x 10^-31 kg)v^2.

Solve for v: v = sqrt((-2 * 8 x 10^-16 J)/(9.11 x 10^-31 kg)) ≈ 1.32 x 10^7 m/s.

So, the electron's velocity when it hits the opposite plate is approximately 1.32 x 10^7 m/s.

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Through 57 revolutions the tub rotate while it is in motion.

What is angular speed?

Angular speed is defined as the rate of change of angular displacement, It is a scalar measurement of rotating object.

It is expressed as follows:  ω = θ / t.

Here,

Initially tub is at rest so,

ω(i) = 0 rev/s

ω(f) = 6 rev/s

time taken, t = 8 second

Now the total number of revolutions,

N = t * ( ω(i)+ ω(f) ) / 2

N1 = 8* ( 0+6 ) / 2

N1 = 24 rev

Now, when the lid is opened it's safety switch is off due to which it is uniformly decelerated and comes to rest in 11 s

N2 = 11* ( 0+6 ) / 2

N1 = 33 rev

So,

Total number of revolutions:

N = N1 + N2

N = 24 + 33

N = 57 revolutions

Thus,

Through 57 revolutions the tub rotate while it is in motion.

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The given diagrams of solid cylinders and cubes contain qualitative flaws in the depicted paths of light. These flaws need to be identified and explained to understand the inaccuracies in the diagrams.

The qualitative flaws in the given diagrams can be identified as follows:

Inaccurate Reflection: The diagrams show light rays reflecting off the surface of the objects at incorrect angles. According to the law of reflection, the angle of incidence is equal to the angle of reflection. However, the depicted paths of light do not adhere to this principle.

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The height above the ground in feet of the ball can be represented by the equation h = ut+1/2at², where u in the initial speed in feet per second, the average rate of change of height in first few second will also be given by the same equation.

The ball thrown upward with an initial speed of u feet per second will attain a height of h feet.

Now, we know, from the equation of motion,

S = ut + 1/2at²

This can be rewritten for the height purpose,

h = ut + 1/2at²

Where,

h is the height in feet,

t is time in seconds,

u is the initial speed in feet per seconds,

a is the acceleration of the ball.

The average rate of change of height will also be given by the same equation. We just have to know that for how much amount of time we need to find the change rate.

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This is an exercise in Rectilinear Uniformly Varied Motion (MRUV) is a type of motion in which an object moves in a straight line and experiences changes in its velocity at a constant rate. In this type of motion, the acceleration of the object remains constant over time.

The distinctive feature of the MRUV is that the velocity of the object changes uniformly, that is, its velocity increases or decreases by a constant amount in each unit of time. If the object experiences a positive acceleration, its velocity increases with time. On the other hand, if the object experiences a negative acceleration, its speed decreases.

In an MRUV, constant acceleration has a direct impact on displacement and the time it takes for the object to reach a certain speed. Also, the direction of the acceleration determines whether the object is accelerating or decelerating relative to its initial motion.

This type of movement is found in various situations of daily life, such as the launch of an object upwards and its subsequent fall, the movement of cars on a road with acceleration or braking, or even the study of bodies in free fall.

Vf = V₀ + a × t

Where:

In this case, the initial velocity (vi) is 1 m/s, the acceleration (a) is -1 m/s^2 (negative because it indicates deceleration), and the time (t) is 4 seconds.

Substituting these values into the formula, we get:

Vf = V₀ + a × t

Vf = 1 m/s + (-1 m/s²) × 4 s

Vf = 1 m/s - 4 m/s

Vf = -3 m/s

Answer:

Force of kinetic friction, Fk = 6N

Explanation:

Given the following data;

Coefficient of kinetic friction, μ = 0.2

Normal force, Fn=30N

To find the Force of kinetic friction;

Mathematically, the force of kinetic friction is given by the formula;

Fk = μFn

Where;

Substituting into the equation, we have;

Fk = 0.2*30

Fk = 6N

Therefore, the force of kinetic friction is 6N.

A force that is present between two moving objects or surfaces is called kinetic friction. It is estimated in newtons (N) and is calculated by:

\(\rm F_{k} =\rm \mu _{\rm k} F_{n}\)

Where, \(\rm F_{k}\) = frictional force,  \(\mu _{\rm k}\)  = coefficient, \(\rm F_{n}\) = normal force.

The kinetic friction of the object is 6N.

The kinetic friction can be estimated as:

Given,

Substituting values in the formula:

\(\rm F_{k} =\rm \mu _{\rm k} F_{n}\)

\(\begin{aligned}\rm F_{k} &= 0.2 \times 30\\\\\rm F_{k} &= 6 \rm N\end{aligned}\)

Therefore, 6N is the frictional force.

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Answer:

is it pulley

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Kepler's laws are fundamental principles of celestial mechanics and continue to be valid for all planets in our solar system, including the ones discovered after Kepler's era.

Kepler's laws of planetary motion are fundamental principles that describe the motion of planets around the Sun and were derived based on observational data available to Johannes Kepler during the 16th and 17th centuries. However, these laws are not limited to the six planets known in Kepler's time.

Kepler formulated three laws of planetary motion:

1. Kepler's First Law (Law of Ellipses): Planets orbit the Sun in elliptical paths, with the Sun located at one of the two foci of the ellipse. This law applies to all planets, including those discovered after Kepler's time.

2. Kepler's Second Law (Law of Equal Areas): An imaginary line connecting a planet to the Sun sweeps out equal areas in equal time intervals. This law holds for all planets, regardless of when they were discovered.

3. Kepler's Third Law (Harmonic Law): The square of a planet's orbital period is proportional to the cube of its average distance from the Sun. This law applies to all planets, both the ones known in Kepler's time and the ones discovered later.

Kepler's laws are fundamental principles of celestial mechanics and continue to be valid for all planets in our solar system, including the ones discovered after Kepler's era. They provide important insights into the motion and behavior of celestial bodies.

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Global Positioning System (GPS) is a satellite-based tracking system that enables users to determine a person's position.

This system is used to locate and track the movements of individuals, vehicles, and assets around the world. GPS technology works by utilizing a network of satellites orbiting the Earth that send signals to GPS receivers on the ground. These receivers interpret the signals and calculate the user's precise location, speed, and direction.

GPS technology has a wide range of applications, including navigation, tracking, and mapping. GPS tracking is particularly useful in fleet management, logistics, and emergency response situations. Law enforcement agencies also use GPS technology to monitor the movements of individuals who are under surveillance or subject to electronic monitoring.

GPS technology has revolutionized the way people navigate and interact with the world around them. It has made it easier for individuals to find their way around unfamiliar places and has improved the efficiency and safety of many industries. The widespread availability of GPS technology has also led to the development of new applications and services that make use of location data, such as geotagging and location-based advertising. Overall, GPS technology has had a significant impact on society and will continue to play an important role in shaping the future.

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Some Tornadoes have central downdrafts that accompany the massive rotating updrafts. True

Mid-altitude winds come into the storm from the rear (or on the west or southwest side). As this dry, cool air enters the system, rain evaporates, cooling it even more. The cooling air becomes cooler than the surrounding air, sinks, and forms a strong downdraft.

Updrafts characterize a storm's early development, during which warm air rises to the level where condensation starts and precipitation starts to expand. In a mature storm, updrafts are present alongside downdrafts caused by cooling and falling precipitation.

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Answer:

Explanation:

1.wrap bar magnet in a plastic baggie and remove the iron filings from the mixture by using a bar magnet. Place a small piece of scrap paper on the scale and “tare” the scale. Then place filings on the scrap paper and record (e) the mass of the iron filings. Don't throw out the iron–save it to be recollected.

2.When sand is added to water it either hangs in the water or forms a layer at the bottom of the container. Sand therefore does not dissolve in water and is insoluble. It is easy to separate sand and water by filtering the mixture. Salt can be separated from a solution through evaporation.

3.Sand (mostly silicon dioxide) is not.

Pour the salt and sand mixture into a pan.

Add water. ...

Heat the water until the salt dissolves. ...

Remove the pan from heat and allow it to cool until it's safe to handle.

Pour the salt water into a separate container.

Now collect the sand.

Pour the salt water back into the empty pan.

Heat the salt water until the water boils. Continue boiling it until the water is gone and you're left with the salt.

Another way you can separate the salt water and sand is to stir up the sand/salt water and pour it through a coffee filter to capture the sand.

Answer:

1. Separating iron from mixture

2. Separating sand from mixture

3. Separating Salt mixture

Answer:

1. F= 66 N

2. M= 40 kg

3. A= 5.45454545 repeating

Explanation:

Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

The height of the roof is approximately 2.876 meters.

Part the underlying speed into its components:

v₀x = v₀ * cos(θ)

v₀y = v₀ * sin(θ)

Given:

Using the provided values, we can determine v₀x and v₀y: v₀ = 15.2 m/s (initial velocity);  = 63.0° (projection angle); t = 2.40 s (flight time).

Now, let's use the vertical displacement equation to determine the vertical displacement (y): v₀x = 15.2 * cos(63.0°), v₀y = 15.2 * sin(63.0°)

y = v₀y * t + (1/2) * (-9.8 m/s2) * t2 = v₀y * t - 4.9 * t2 Using the values we obtained as a starting point:

Δy = (15.2 * sin(63.0°)) * 2.40 - 4.9 * (2.40)²

=2.876 m

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The beginning of solar system development is most likely indicated by the big bang theory. An explanation for how the universe grew from a high density starting state is provided by the Big Bang theory.

And temperature. The evolution of the observable universe from the earliest known times through its later large-scale form is explained by a variety of cosmological models of the Big Bang theory. The Sun and the things that circle it make up the solar system, which is gravitationally bound. The gravitational collapse of a massive interstellar molecular cloud gave it birth 4.6 billion years ago. 99.86% of the system's mass is in the Sun, with the planet holding the majority of the remaining mass.

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The nebular hypothesis is the most widely recognized cosmogony theory to explain how the Solar System started and evolved (as well as other planetary systems). It implies that gas and dust orbiting the Sun are what created the Solar System.

Over 70 different types of meteorites have undergone radiometric dating to ascertain their ages. The findings suggest that between 4.53 and 4.58 billion years ago, the Solar System and meteorites both began to develop.

Scientists believe that the formation of terrestrial planets like Earth several billion years ago resulted from the coalescence of hot blobs of molten rock and metal from dust and gas. Before they developed into separate planets, they went through four stages of development: differentiation, cratering, flooding, and surface evolution.

The solar nebula

4.6 billion years ago, the solar nebula, a cloud of gas and dust, gave rise to the Sun and the planets.

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F = ma

= 50kg × 2.5 m/s²

= 125 N

Answer : 125N

Explanation :

F = Force (N)

m = mass (kg)

a = acceleration (m/s²)

An electric switch is a device that interrupts the electron flow in a circuit. Switches are primarily binary devices: either fully on or off and light switches have a simple design. When the switch is turned off, the circuit breaks and the power flow is interrupted. Circuits consist of a source of power and load.

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Explanation:

When the battery(it store chemical energy) is connected in an electrical appliance and the appliance is switched on, the stored energy in the battery is transferred to the appliance in the form of electrical energy to make it work.

The magnitude of the emf e induced in the loop after exactly time 9.00 s has passed since the circumference of the loop started to decrease is 0.0124V

Magnitude is simply "distance or amount" in the context of physics. In terms of motion, it shows the absolute and relative size, direction, or movement of an item. It is used to describe something's size or scope. Magnitude in physics often refers to a size or amount.

Magnetic Flux(t) = BA(t) = (B)(pi)[r(t)]^2

C(t) = \(C_0\)-at = 2π[r(t)]

So (B)(π)[r(t)]^2 = (B)(π)[C(t)/(2pi)]^2

= (B)[C(t)]^2/(4π)

By the chain rule of calculus dx^2/dt = 2x(dx/dt)

emf = (1.0)(0.11/(2π))(1.7-((9)(.11))) = 0.0124V

emf = (π)(B)(2r)abs(dr/dt)

emf = BC(t)abs(dr/dt)

emf at (t=9) = B(C_0+(dC/dt)t)abs(dr/dt)

emf = (1.0)(0.11/(2pi))(1.7-((9)(.11))) = 0.0124V

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Answer:

B. Electrical energy transforms into mechanical energy.

Explanation:

In the case when the wire loop transforms between the two permanent magnets in a generator so here the electrical energy turns to mechanical energy as there is a working principle behind the generator that the electrical energy would turns into mechanical energy

Therefore as per the given scenario, the option b is correct

And, the rest of the options are wrong

Air in an ideal Diesel cycle is compressed from 4 L to 0.25 L, and then it expands during the constant pressure heat addition process to 0.50 L. Under cold air standard conditions, the thermal efficiency of this cycle is 65.2%.

For an air standard engine with γ = 1.4, compression ratio r and fuel cut off ratio rc where r = V1/V2

and rc = V3/V2 and V1 = 4l, V2 = 0.25l and V3 = 0.50l

The efficiency (n) of diesel cycle is ----

n = 1 - [1 / r^(γ - 1)] * (rc^γ -1) / γ(rc - 1)

n = 1 - [1/(4/0.25)^(1.4-1)] * (0.50/0.25)^1.4 - 1 / 1.4 [(0.50/0.25) -1 ]

n = 1 - [1/3.03] * [2.63 - 1] / 1.4x1

n = 0.652

n% = 65.2%

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The wavelength of the wave increases as the speed increases if the frequency stays the same. Because, wavelength is directly proportional to the speed of the wave.

The wavelength of a traverse wave or an electromagnetic wave is the distance between two consecutive crests or troughs of the wave. Frequency of a wave is the number of wave cycles per unit time. It is the inverse of time period.

The wavelength and frequency of a wave is related to the speed by the following expression:

c =νλ

As per the equation, speed is directly proportional to the wavelength and frequency.

The wavelength and frequency of a wave are inversely proportional to each other.  and If the speed is increased with a constant frequency, the wavelength increases.

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Answer:

Our weight on moon is less than it would be on Earth.

Explanation:

Due to a difference of the strength of gravity on the moon. The moon's gravitation force is determined by the mass and the size of the moon. Since the moon has significantly less mass than the Earth, it will not pull objects toward itself at the strength that Earth will. This means that if you went to the moon you would weigh less, even though your mass stays the same.

Answer:

True

Explanation:

I just took the test and got 100

Answer:

rotation

Explanation:

............................

Answer: 2nd option, Rotation

I hope this helps, and Stay Safe! :)

Knowing the mass and distance between two objects, we can use Newton's Law of Universal Gravitation to calculate the force of gravity between them.

To calculate the gravitational force between two objects, we use Newton's Law of Universal Gravitation. This law states that the force of gravity between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them.

We can use this law to calculate the force of gravity between two objects by multiplying the product of the two masses by the gravitational constant g. This gravitational constant is a universal value that allows us to determine the magnitude of the gravitational force between two objects.

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Answer:

Explanation:

The mass of the person can be found by using the formula

\(m = \frac{p}{v} \\ \)

p is the momentum

v is the velocity

From the question we have

\(m = \frac{52}{0.8} \\ \)

We have the final answer as

Hope this helps you