Can anyone prove to me that the Big Bang theory is real? That’s just the most crazy thing man kind can think of that, nothing, created everything, that’s scientifically imposible

Answer:

\(V=9.2565m/s\)

Explanation:

From the question we are told that:

Force \(F = 34 N\)  

Time \(t = 0.6 s\)

Length of pedal \(l_p=16.5cm \approx0.165m\)

Radius of wheel \(r = 33 cm = 0.33 m\)

Moment of inertia, \(I = 1200 kgcm2 = 0.12 kg.m2\)

Generally the equation for Torque on pedal \(\mu\) is mathematically given by

\(\mu=F*L\\\mu=34*0.165\)

\(\mu=5.61N.m\)

Generally the equation for  angular acceleration \(\alpha\) is mathematically given by

 \(\alpha=\frac{\mu}{l}\)

 \(\alpha=\frac{5.61}{0.12}\)

 \(\alpha=46.75\)

Therefore Angular speed is \omega

\(\omega=\alpha*t\)

\(\omega=(46.75)*(0.6)\)

\(\omega=28.05rad/s\)

Generally the equation for  Tangential velocity V is mathematically given by

\(V=r\omega\)

\(V=(0.33)(28.05)\)

\(V=9.2565m/s\)

Answer:

4320cm

Explanation:

(length of the arc)/(length of the radius)=central angle

lengthof the arc/20=216

lengthof the arc=216×20

length of the arc=4320cm

hope this helps, let me know if I'm right!

The length measured along the arc is called length of the arc. The length of the arc defined by the central angle is 4320cm.

Central angle is the angle subtended by the arc at the center of circle.

central angle = length of the arc / length of the radius

216 = length of the arc/20

length of the arc = 216×20

length of the arc = 4320cm

Thus, the length of the arc defined by the central angle is 4320cm.

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The two strings are taut. When the system is released from rest, it accelerates at 2 m/s2 then, Mass of A = 8m/5 kg.

Let the mass of the body A be ‘m’.

The two strings are taut so they exert a tension ‘T’ on body A.

Let ‘a’ be the acceleration produced in the system.

The free body diagram of body A is given below: mA + 2T = mA + ma = mA + m(2)mA + 10T = mA + ma = mA + m(2)

As the two strings are taut, we can say that tension in both strings is equal.

Therefore 2T = 10T or T = 5T As the body A is resting on a smooth horizontal table, there is no friction force acting on the body A.

The net force acting on body A is the force due to tension in the strings. ma = 2T – mg …(1)

As per the given problem, the system is released from rest.

Hence the initial velocity is zero.

Also, we are given that the system accelerates at 2 m/s2.

Therefore a = 2 m/s2 …(2)

From the equations (1) and (2), we get, m(2) = 2T – mg …(3)⇒ m(2) = 2×5m – mg⇒ 2m = 10m – g⇒ g = 8m/5

Thus, the mass of A is 8m/5 kg.

Answer: Mass of A = 8m/5 kg.

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Based on the information, it should be noted that the resistance R is 0.5 Ω.

When S1 and S2 are open, i leads e by 30°. In this case, the circuit consists of only the inductor (L) and the capacitor (C) in series. Therefore, the impedance of the circuit can be written as:

Z = jωL - 1/(jωC)

Since i leads e by 30°, we can express the phasor relationship as:

I = k * e^(j(ωt + θ))

Z = jωL - 1/(jωC) = j(120π)L - 1/(j(120π)C)

Re(Z) = 0

By equating the real parts, we get:

0 = 0 - 1/(120πC)

Let's assume that there is a resistance (R) in series with the inductor and capacitor. The impedance equation becomes:

Z = R + jωL - 1/(jωC)

Z = R + jωL

Im(Z) = ωL > 0

Substituting the angular frequency and rearranging the inequality, we have:

120πL > 0

L > 0

This condition implies that the inductance L must be greater than zero.

When S1 and S2 are closed, i has an amplitude of 0.5 A. In this case, the impedance is:

Z = R + jωL - 1/(jωC)

Since the amplitude of i is given as 0.5 A, we can express the phasor relationship as:

I = 0.5 * e^(j(ωt + θ))

By substituting this phasor relationship into the impedance equation, we can determine the value of R. The real part of the impedance must be equal to R:

Re(Z) = R

Since the amplitude of i is 0.5 A, the real part of the impedance must be equal to 0.5 A: 0.5 = R

Therefore, the resistance R is 0.5 Ω.

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Answer-

mk thats kool.

Answer:

Force Friction

Explanation:

The density of water is approximately 1 g/cm^3. Therefore, the volume of 2800 g of water would be 2800 cm^3 because density is mass/volume, and so volume is mass/density.

Since this volume is inside a cubic box, the length of each side of the cube (a, for instance) could be found by taking the cubic root of the volume. This is because the volume of a cube is calculated by a^3 (length of one side cubed). Hence, a = cube root of 2800 cm^3 ≈ 14.1 cm.

Converting centimeters to meters (as 1 meter is equal to 100 centimeters), we get approximately 0.141 meters.

So the filled cubic box has a side length of approximately 0.141 m.

Given:

The frequency of the wave is f = 2766 kHz

The power is P = 35 kW

Required: Number of photons emit each second by the transmitting antenna.

Explanation:

Power and energy are related as

For each second the time will be t = 1 s

Also, the energy can be calculated by the formula

Here, Planck's constant is

On substituting the values, the number of photons each second will be

Final Answer: There are 1.92 x 10^(31) photons each second.

a)

The final speed v_f can be calculated from the formula for the acceleration:

Replace v_0=30.0ft/s, g=32.2ft/s^2 and t=3.50s to find the final speed of the rock:

Therefore, the speed of the rock as it hits the water is approximately 143 ft/s.

b)

The distance d traveled by an object during a time interval t is given by the average speed as follows:

On the other hand, an object in free fall accelerates uniformly. The average speed of an object under uniformly accelerated motion is:

Then, for uniformly accelerated motion, the distance traveled by an object that changes its velocity from v_0 to v_f during a time interval t, is:

Notice that the initial speed of the rock is known, as well as the time interval t during which the rock falls. The final speed was calculated in part (a). Then, the distance that the rock travels during the time interval of 3.50s is:

Therefore, the height of the bridge above the water is approximately 302 feet.

Answer:

The accuracy and precision of a result depend on several factors, including:

1. Quality of the measurement tools - Using high-quality measurement instruments can lead to more accurate and precise results.

2. Calibration of instruments - Instruments should be calibrated regularly to ensure accurate and precise readings.

3. Skill of the person performing the measurement - The person performing the measurements must have proper training and knowledge of the tool they're using.

4. Sample size - Increasing the sample size can lead to more accurate results.

5. Sampling bias - If the sample used for the measurement is biased, it can lead to inaccurate or imprecise results.

6. Experimental design - Proper experimental design can help reduce measurement errors and increase accuracy.

The fountain is 5.213m high.

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Answer:

x-component = 7.1

Explanation:

x-component = 9cos38 = 7.09 =7.1

Answer:

7.1

Explanation:

use cos

Answer:

a) 210 Ω

b) 21 V

c) 0.07 A, 0.03 V

d) VAE = 7 V

VEB = 14 V

VAF = 9 V

VFB = 12 V

Explanation:

a) 100 Ω and 200 Ω are in series, equivalent = 100 + 200 = 300 Ω,

300 Ω and 400 Ω are in series, equivalent = 300 + 400 = 700 Ω

300 Ω and 700Ω are in parallel, so the equivalent resistance between A and B is R where

1/300 + 1/700 = 1/R, get R = 210 Ω

b) Given I = 0.1 A

so VAB = I * R = 1 * 210 = 21.0 V

c) I₁ + I₂ = I = 0.1, so I₂ = 0.1 - I₁

I₁ * 300 = I₂ * 700

I₁ * 300 = (0.1 - I₁) * 700

get I₁ = 0.07 A, I₂ = 0.1 - I₁ = 0.03 A

d) VAE = I₁ * 100 = 7 V

VEB = I₁ * 200 = 14 V

VAF = I₂ * 300 = 9 V

VFB = I₂ * 400 = 12 V

Grouping data refers to the process of categorizing or organizing data based on specific criteria or attributes.

It involves grouping similar data points together to gain a better understanding of patterns, relationships, and trends within the dataset. By grouping data, you can simplify complex information and derive meaningful insights from large amounts of data. The purpose of grouping data is to create subsets or clusters that share common characteristics.

This enables easier analysis, summarization, and comparison of data within each group. Grouping can be performed on various types of data, such as numerical, categorical, or time-based data. Grouping data allows for the exploration of data at different levels of granularity.

For example, you can group sales data by region to analyze regional performance, or group customer data by demographics to identify specific customer segments. This process helps in identifying outliers, detecting patterns, and making data-driven decisions.

Common techniques for grouping data include using functions like GROUP BY in SQL or utilizing data visualization tools to create charts or graphs that illustrate the grouped data. Grouping can be applied in various fields, such as marketing, finance, healthcare, and research, to uncover insights and support decision-making processes.

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1)

The formula for calculating kinentic energy is expressed as

K = 1/2mv^2

where

m = mass of object

v = velocity of object

From the information given,

m = 92.4

v = 13.2

By substituting these values into the formula,

K = 1/2 x 92.4 x 13.2^2

K = 8049.89 J

2) If the person pedals enough to do 1580 J of work, it means that the kinetic energy that the system has now is

K = 1580 J

3) We would substitute K = 1580 and m = 92.4 into the kinetic energy formula. We have

1580 = 1/2 x 92.4 x v^2

1580 = 46.2v^2

v^2 = 1580/46.2

Taking the square root of both sides of the equation,

The new velocity of the system is

v = 5.85 m/s

The bottom of a cylindrical water tank, 10 m tall and 6 m in diameter, is 25 m above the ground. According to calculations, the water pressure and force at the bottom of the tank are 343,000 Pascal and 9,685,941 Newtons, respectively.

A water pipe at ground level has the same pressure as one at the tank's base. The rate of water egress from a leak 8 metres above the ground is around 19.6 metres per second.

These calculations are based on the conservation of energy and hydrostatic principles.This pressure can also be found in a ground-level water pipe. Water will seep from a leak 8 metres above the ground at a speed of about 19.6 metres per second.

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The vehicle has a 2000kg mass.

Take a mass's acceleration into account. Use the formula F = m a to determine the force's value. Kilogram-meter/second-squared will be used as the unit of force. The short name for this unit, which is made up of the three basic SI units, is newton.

F= ma

m= F/a

m= 50000/25

m= 2000 kg

According to Newton's Second Law of Motion, acceleration (gaining speed) occurs whenever a force acts on a mass (object). This law of motion is best demonstrated by riding a bicycle. The mass is your bicycle. The force that propels you forward on your bicycle comes from your leg muscles.

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Answer:

it is a i

Explanation:

i took the quiz on edge 2020

Palace word best provides a context clue to the meaning of mead-hall. So, the correct option is A.

The royal residence, as well as occasionally a place of government or worship, is referred to as a palace. The Pontifical Hill in Rome, where the Ancient romans built their palaces, is whence the word was from.

A palace should be distinguished from a fortress, which was formerly any fortified residence, as a construction. A palace is a location with a regal and imposing structure that serves as a stately home such as a president, ruler, or leader's official residence.

Many old palaces have been turned into museums that depict what life was like for the king and aristocracy at the time they were erected. The context information provided by Palace term in the aforementioned example sheds light on the definition of mead-hall.

Therefore, the correct option is A.

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Kepler's second law states that the speed of planet's orbit varies depending on which part of the ellipse it is occupying. Thus, option (2) is correct.

Answer:

340 kg

Explanation:

F = ma

Rearranging the equation to solve for mass (m):

m = F/a

Substituting the given values:

m = 850 N / 2.5 m/s^2

m = 340 kg

Answer:

It is right!! Keep going.. fighting ✊

Answer:

Yes it is right!

Explanation:

I just went over it and it sounds good.

Good luck!

Answer:

The dust does have any third charge.

Explanation:

                In the context, the glass rod gets positively charged and so it induces a negative charge on the dust particles which are neutral. Thus the face of the dust particle which is near to the rod becomes negative charge and the opposite face of the dust gets equal positive charge and hence it ensures the neutrality of the dust particle but still being attracted to the glass rod.

               And in the case of the negatively charged silk, the silk induces or gives positive charge to the dust particle which is neutral in charge. The face which is near to the silk gets positive charge and the other face becomes negative charge, again ensuring its neutrality and being attracted to the glass rod.

               This shows how both positive charged rod and negatively charged silk attracts the neutral dust particle.

Explanation:

You cannot gain exact amount of mass you consume because some of the food particles will trap in the mouth or teeth

And some food will not digest ex fiber

And some food particles will stay in the plate

When one eats food, some of the food is excreted in solid form or in its liquid form; As such, it is impossible to gain exactly the amount of mass consumed.

The law of conservation of mass states that matter can neither be created nor destroyed by chemical reactions or physical transformations.

On this basis; it is impossible to gain exactly the amount of mass one consumes with each meal because some of the food consumed are given off and are therefore responsible for the deficit in mass gain.

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Answer:

When the projectile is launched straight up, there isn't a horizontal ... The initial acceleration was 9.8 m/s2 pointing up, so the acceleration at any other point should be the same.

Explanation:

Hope it helped =)

The maximum altitude that the cannonball will reach if fired straight up at a speed of 25 m/s is; 31.86 m

According to the question;

The cannonball is fired straight up at a speed of 25 m/s

Additionally, the cannonball is fired against the force of gravity.

Consequently, the motion is in the opposite direction of the acceleration due to gravity.

From the equation of motion;

At the maximum altitude, V = 0.

The maximum altitude that it will reach is;

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Answer:

The correct answer is B. your weight

Explanation:

Newton's third law states that every action has an equal and opposite reaction. You may not think this, but when you're standing on the floor, you are exerting a force against the floor: your weight, caused by gravity, is pulling you down. The floor is reacting by pushing back: we call this force the reaction force. -Google

Answer:

kkk

Explanation:

Answer:

Explanation:

How to find main scale and vernier scale reading?

Follow these steps to read the vernier scale:

   Read the main scale. Look for the last whole increment visible before the 0 (zero) mark.

   Read the secondary scale (Vernier) measurement. This is the division tick mark that lines up best with a mark on the main scale.

   Add the two measurements together.

How do you find the main scale reading?

The main scale on a Vernier caliper typically tells you the whole number plus the first decimal. Read this just as you would a ruler, measuring to the zero mark on the sliding (Vernier) scale. For example, if the 0 on the sliding scale lines up with the 2 inch mark, your measurement is 2 inches

The expression \(X^{N} + Y^{N}\)is not divisible by X - Y (where Y is not equal to 0).

To determine whether the expression \(X^{N} + Y^{N}\) is divisible by X - Y (where Y is not equal to 0), we can use the factor theorem and the property of binomial expansion.

The factor theorem states that if a polynomial P(x) is divisible by (x - a), then P(a) equals zero. In our case, if \(X^{N} + Y^{N}\) is divisible by (X - Y), then when we substitute X = Y into the expression, the result should be zero.

Let's substitute X = Y into the expression:

\(Y^{N} + Y^{N}\)

Since \(Y^{N}\) is equivalent to \(Y^{N}\) , the expression becomes:

2(\(Y^{N}\))

We can see that the expression 2(\(Y^{N}\)) is not equal to zero unless Y is equal to zero. Therefore, if Y is not equal to zero, \(X^{N} + Y^{N}\) is not divisible by X - Y.

In summary, unless Y is equal to zero, the expression \(X^{N} + Y^{N}\) is not divisible by X - Y according to the factor theorem and the given condition.

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Answer:

Dababy dababy dababy Dababy dababy dababy xD

have a good day :)

Explanation:

Answer:

les go

Explanation:

Here, the slope of the graph is negative and constant.

Hence, acceleration is constant and is in opposite direction to its motion.

So, The object whose motion is represented by this graph is moving with constant acceleration.

Motion is defined in physics as the phenomenon through which an object changes its location with respect to time. Motion is mathematically characterized in terms of displacement, distance, velocity, acceleration, speed, and frame of reference to an observer, with the change in position of the body relative to that frame measured as time passes. Kinematics is the branch of physics that studies forces and their effects on motion, whereas dynamics is the branch that studies forces and their effects on motion.

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