A 2.00 kg cat is in a 97.00 kg elevator. What force on the elevator cable would be needed to lower the cat/elevator pair with an acceleration of 2.00 m/s^2 downwards?

Answer: An 8 kg book at a height of 3 m has the most gravitational potential energy.

Explanation:

Gravitational potential energy is the product of mass of object, height of object and gravitational field.

So, formula to calculate gravitational potential energy is as follows.

U = mgh

where,

m = mass of object

g = gravitational field = \(9.81 m/s^{2}\)

h = height of object

(A) m = 5 kg and h = 2m

Therefore, its gravitational potential energy is calculated as follows.

\(U = mgh\\= 5 kg \times 9.81 m/s^{2} \times 2 m\\= 98.1 J (1 J = kg m^{2}/s^{2})\)

(B) m = 8 kg and h = 2 m

Therefore, its gravitational potential energy is calculated as follows.

\(U = mgh\\= 8 kg \times 9.81 m/s^{2} \times 2 m\\= 156.96 J (1 J = kg m^{2}/s^{2})\)

(C) m = 8 kg and h = 3 m

Therefore, its gravitational potential energy is calculated as follows.

\(U = mgh\\= 8 kg \times 9.81 m/s^{2} \times 3 m\\= 235.44 J (1 J = kg m^{2}/s^{2})\)

(D) m = 5 kg and h = 3 m

Therefore, its gravitational potential energy is calculated as follows.

\(U = mgh\\= 5 kg \times 9.81 m/s^{2} \times 3 m\\= 147.15 J (1 J = kg m^{2}/s^{2})\)

Thus, we can conclude that an 8 kg book at a height of 3 m has the most gravitational potential energy.

Answer:

im just so focused on the fact that im going to mars :O

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.

Know more about binomial expansion here:

https://brainly.com/question/31363254

#SPJ8

The total head of the pipe is 430,400 Pa.

The total head of the pipe is the total pressure of the pipe and it is calculated as follows;

Pt = Pi + ¹/₂ρv² + ρgh

where;

Pt = ( 350,000) + ¹/₂(1000)(2)²  +  (1000 x 9.8 x 8)

Pt = 430,400 Pa

Thus, the total head or total pressure of the pipe depends on the density of water, speed of water and height above datum.

Learn more about total pressure here: https://brainly.com/question/26101731

#SPJ1

The amount of force required by the farmer to move the pig is 1176N. A force in physics is an effect that has the power to alter an object's motion.

A mass-containing object's velocity can be altered by a force (e.g. moving from a state of rest). Motion can be characterised as a shift in an object's location with regard to time. Motion is demonstrated by things like a book falling off a table, water running from a faucet, rattling windows, etc. There is motion even in the air we breathe! The universe is a moving thing. The universe in which we exist is constantly in force.

Fmax = 0.8*150*9.8 Fmax = 1176N is the maximum force needed to move the pig.

Learn more about force here

https://brainly.com/question/13191643

#SPJ4

The complete question is -

Problem 5.29 7 of 15> A stubborn 150 kg pig sits down and refuses to move. To drag the pig to the barn, the exasperated farmer ties a rope around the pig and pulls with his maximum force of 800 N. The coefficients of friction between the pig and the ground are p, = 0.80 and μ'= 0.50. Part A Calculate the force which farmer needs to apply to budge the pig. Express your answer to two significant figures and include the appropriate units. HA F Value Units Submit Request Answer Part B This question will be shown after you complete previous question(s).

Answer:

a. global warming

Explanation:

that's the definitain of global warming

Answer:

A climate

Explanation:

Answer:

Solid state: Water in the form of ice or snow.

Liquid state: Water in the form of liquid, such as oceans, rivers, lakes, and groundwater.

Gas state: Water in the form of water vapor, which is an invisible gas that is present in the atmosphere.

The maximum velocity is 48π m/s.

The equation: can be used to determine the maximum velocity of a particle in simple harmonic motion.

Vmax = ω * A

Where

The following formula can be used to get the angular frequency:

ω = 2π / T

Where

T is the motion's period.

Given that the period is π/2 seconds (T = π/2) and the amplitude is 12 m (A = 12), we can find the angular frequency:

ω = 2π / (π/2) = 4π rad/s

Now we can calculate the maximum velocity:

Vmax = ω * A = (4π rad/s) * (12 m) = 48π m/s

Therefore, the maximum velocity is 48π m/s.

Learn more about simple harmonic motion here : brainly.com/question/2195012

#SPJ1

Answer:

B) 1500m/s

Explanation:

Ans is 1500m/s

Answer:

\(\lambda=5.46\times 10^{-8}\ m\)

Explanation:

The hottest ordinary star in our galaxy has a surface temperature of 53,000 K.

We need to find the peak wavelength of its thermal radiation.

Using Wein's law,

\(\lambda T=2.898\times 10^{-3}\\\\\lambda=\dfrac{2.898\times 10^{-3}}{53000}\\\\=5.46\times 10^{-8}\ m\)

So, the peak wavelength of its thermal radiation is equal to \(5.46\times 10^{-8}\ m\).

The earthquake would occur 13 minutes before 10:05 a.m. which will be at 9.52 am.

The p-waves travel with a constant velocity of 7 km/s

The time can be calculated by using the formula

t = d / v

where

T1 =  10:05 a.m

d is the distance they take to travel from the epicenter

v is the speed of the p-waves

On average, the speed of p-waves is

v = 7 km/s

d = 5600 km (given)

Substituting the values in the formula;

t = d / v

t = 5600 ÷ 7

t = 800 seconds

Converting into minutes,

t = 800 ÷ 60

t = 13.3

≈ 13 mins

T1 -  13 mins = T2

10:05 - 13 mins = 9.52 am

It means the earthquake occurred prior 13 minutes, that is at 9.52 am.

Therefore, the earthquake occurred at 9.52 am.

Learn more about earthquakes from the given link.

https://brainly.com/question/25843505

It would take approximately 546 days for the decay rate of the sample of this radioactive isotope to fall to 0.58 of its initial rate.

1. The decay rate of a radioactive isotope is proportional to the number of radioactive atoms present in the sample at any given time.

2. The decay rate can be expressed as a function of time using the formula: R(t) = R₀ * \(e^{(-\lambda t\)), where R(t) is the decay rate at time t, R₀ is the initial decay rate, λ is the decay constant, and e is the base of the natural logarithm.

3. The half-life of a radioactive isotope is the time it takes for half of the radioactive atoms in a sample to decay. In this case, the half-life is given as 210 days.

4. Using the half-life, we can find the decay constant (λ) using the formula: λ = ln(2) / T₁/₂, where ln(2) is the natural logarithm of 2 and T₁/₂ is the half-life.

5. Substituting the given half-life into the formula, we have: λ = ln(2) / 210.

6. Now, we need to find the time it takes for the decay rate to fall to 0.58 of its initial rate. Let's call this time "t".

7. Using the formula for the decay rate, we can write: 0.58 * R₀ = R₀ * e^(-λt).

8. Simplifying the equation, we get: 0.58 = \(e^{(-\lambda t\)).

9. Taking the natural logarithm of both sides, we have: ln(0.58) = -λt.

10. Substituting the value of λ from step 5, we get: ln(0.58) = -(ln(2) / 210) * t.

11. Solving for t, we have: t = (ln(0.58) * 210) / ln(2).

12. Evaluating the expression, we find: t ≈ 546.

13. Therefore, it would take approximately 546 days for the decay rate of the sample of this radioactive isotope to fall to 0.58 of its initial rate.

For more such questions on decay rate, click on:

https://brainly.com/question/27542728

#SPJ8

Answer:

 \(v_{x}\) = \(v_{ox}\) = 140 m / s

Explanation:

This is a projectile launch, in this case the components of the initial velocity are seen

Since there is no rice in the X axis, so the velocity is vx, it must be constant, at all times

              \(v_{x}\) = \(v_{ox}\) = 140 m / s

The vertical component of velocity changes due to having applied the gravity fiate

             \(v_{y}\) =  \(v_{oy}\) - g t

The current flowing in the 2Ω and 1Ω is 1.14 A and the current flowing in the 3Ω and 4Ω is 0.286 A.

The value of the current in each resistor is calculated by applying Kirchoff voltage law as follows;

The total voltage in loop 1 is calculated as;

2 + 4 - I₁R₁ - (I₁ - I₂)R₂ - I₁R₃ = 0

6 - 2I₁ - 3(I₁ - I₂) - 1₁ = 0

The current flowing in loop 2 is calculated as;

I = V/R

I₂ = ( 6 V - 4 V ) / (3 + 4)

I₂ = 0.286 A

The value of the current flowing in loop 1 is calculated as;

6 - 2I₁ - 3(I₁ - I₂) - 1₁ = 0

6 - 2I₁ - 3(I₁ - 0.286) - 1₁ = 0

6 - 3I₁ - 3₁ + 0.858 = 0

-6I₁ = -6.858

I₁ = 6.858 / 6

I₁ = 1.14 A

Learn more about current in circuit here: https://brainly.com/question/19255262

#SPJ1

Answer:

2 m uphill

Explanation:

The displacement can be calculated as the difference between the final position and the initial position.

In this case, the initial position is 0 m

And the final position is

6 m - 4m = 2 m

Because the ball rolled 6 m uphill and then 4 m downhill.

Then, the displacement is equal to

Displacement = Final position - Initial position

Displacement = 2 m - 0 m

Displacement = 2 m

Therefore, the total displacement of the ball is 2 m uphill

Answer:

While the transatlantic slave trade mainly involved enslaving people from West Africa and forcing them to work on plantations in the Americas, modern slavery is more widespread in countries across the world, including the UK. The Atlantic slave trade contributed to the activity of many provision and redistribution markets, and enabled the creation of large fortunes that were invested in highly diverse activities and forms of consumption.

Explanation:

hope that helps

Answer:

Answer: simple h. momenta=6.0*3.5. =21.0.

Explanation:

To determine the exact age of a layer of rock, geologists typically use radiometric dating techniques such as measuring the decay of radioactive isotopes in rocks.

While fossils found within a layer of rock can provide important clues about the age of the rock, they cannot determine the exact age of the layer with precision.

This is because the fossil record is incomplete and fossils found in a layer of rock are unlikely to represent all species that existed during a particular time period.

Learn more about the age of a rock:https://brainly.com/question/29770777

#SPJ1

In order to not to sink in snow they Wear shoes with a much larger area on the bottom to increase the surface area of their feet in contact with the snow

The size of the snow shoes prevents them from sinking into the snow. They have a big surface. since the relationship between surface area and pressure is inverse. Therefore, when the surface area is big, less pressure will be placed on the ground by the shoes.

In comparison to the bottoms of shoes alone, the snowshoes have a larger contact surface with the snow. Because they cover a larger surface area than would be the case if he were wearing only shoes, they lessen the pressure that the person's weight puts on the snow. will not become as firmly embedded in the snow as a result

To learn more about surface area:

https://brainly.com/question/2835293

#SPJ9

If we try to walk on snow, our feet will sink in the snow because our feet has less surface area.

We know that lesser the surface area the more is the pressure on the surface. If we put on skies, we can move over the snow easily because skies have larger surface area and hence decrease the pressure on the snow.

Hence decrease the pressure on the snow while we walk on snow.

Learn more about here

#SPJ4

The complete question is;

In electronic circuits it is not unusual to encounter currents in the microampere range. Assume a 35 μA current, due to the flow of electrons. What is the average number of electrons per second that flow past a fixed reference cross section that is perpendicular to the direction of flow?

Answer:

2.185 × 10^(14) electrons/seconds

Explanation:

We are given current as 35 μA = 35 × 10^(-6) Amperes

The value of the charge on one electron is; e = 1.602 × 10^(-19) coulombs

Now, from conversions;

One ampere = one coulomb/second =

Then, 35 × 10^(-6) Ampere's would give;

35 × 10^(-6) Coulombs/sec

Now,

1.602 × 10^(-19) coulombs = 1 electron

Thus;

35 × 10^(-6) Coulombs/sec gives;

(35 × 10^(-6))/(1.602 × 10^(-19)) = 2.185 × 10^(14) electrons /sec

The average number of electrons per second that flow past a fixed reference cross-section perpendicular to the direction of flow is 2.185 × 10⁻¹⁴ electrons /sec

The question is as given below:

In electronic circuits, it is not unusual to encounter currents in the microampere range. Assume a 35 μA current, due to the flow of electrons. What is the average number of electrons per second that flow past a fixed reference cross-section that is perpendicular to the direction of flow?

Given information:

Current I = 35 μA = 35 × 10⁻⁶ A

charge on electron e = 1.602 × 10⁻¹⁹C

We know that:

I = de/dt, rate of flow of charge.

1A = 1C/s

Thus,

35 × 10⁻⁶ A = 35 × 10⁻⁶ C/s

Now, one electron has a charge of  1.602 × 10⁻¹⁹C

So, the number of electrons for a current of 35 × 10⁻⁶ C/s will be:

n = (35 × 10⁻⁶ C/s) ÷ (1.602 × 10⁻¹⁹C)

n = 2.185 × 10⁻¹⁴ electrons /sec

Learn more about current and charge:

https://brainly.com/question/1345174?referrer=searchResults

The smallest angle at which the rope can bend up from the horizontal on either side of the tightrope walker to avoid breaking is approximately 82.8 degrees.

A tightrope walker is a skilled performer who walks or performs acrobatics on a thin, flexible rope, typically suspended at a considerable height.

Let's start by calculating the weight of the walker:

weight = mass x acceleration due to gravity = 60 kg x 9.8 m/s^2 = 588 N

To avoid breaking the rope, the tension in the rope cannot exceed 5200 N. Let's assume that the angle of the rope with respect to the horizontal is θ.

The tension in the rope can be calculated using the following formula:

tension = weight / (2 x cosθ)

Where

We can rearrange this formula to solve for the angle θ:

cosθ = weight / (2 x tension)

θ = arccos(weight / (2 x tension))

Plugging in the values for weight and tension gives:

θ = arccos(588 N / (2 x 5200 N)) = 82.8 degrees

Therefore, the smallest angle at which the rope can bend up from the horizontal on either side of the tightrope walker to avoid breaking is approximately 82.8 degrees.

Learn more about  weight here : brainly.com/question/28507971

#SPJ1

a. His average velocity would be 1.11m/s2

b. His average speed would be 2.05m/s

Velocity of a particle is its speed and the direction in which it is moving.

It can also be described as the instantaneous rate of change of the particle's distance traveled, and the direction in which the distance is changing. The SI units of the speed is the metre per second squared (m/s2). It is a vector quantity, hence is has magnitude and direction.

Speed is a scalar quantity which tells how fast an object is moving, regardless of its direction. The SI units of the speed is the metre per second (m/s). It is a scalar quantity and has only magnitude with no direction.

From the question;

Velocity = displacement/time

displacement = 40 km (4000m)

time = 60 mins (3600s)

Velocity = 4000/3600

Velocity = 1.11m/s2

Speed = total distance covered/total time

Speed = (40km + 20km + 20km) / (60mins + 5 mins)

Speed = (4000m + 2000m + 2000m) / (65mins)

Speed = (8000m/3900s)

Speed = 2.05m/s

Hence, his average velocity is 1.11m/s2 and speed 2.05m/s.

Learn more about velocity and speed:https://brainly.com/question/13943409

#SPJ1

Answer:

B. Decrease its buoyancy

Explanation:

When the air is removed, the vlu

Answer:

Explanation:

Yes, when a ball rolls down a ramp, it possesses kinetic energy. Kinetic energy is the energy associated with an object's motion. As the ball rolls down the ramp, it gains speed and its motion increases, resulting in an increase in its kinetic energy. The amount of kinetic energy the ball has depends on its mass and velocity.

Hope this answer your question

Please rate the answer and

mark me ask Brainliest it helps a lot

Answer:

Yes, when a ball rolls down a ramp, it possesses kinetic energy.

Explanation:

Kinetic energy is the energy associated with an object's motion. As the ball rolls down the ramp, it gains speed and its motion increases, resulting in an increase in its kinetic energy. The amount of kinetic energy the ball has depends on its mass and velocity.

To Read more about kinetic energy,

https://brainly.in/question/1797886

Answer:

\(1.694*10^3KW/hr\)

Explanation:

Formula:

\(KW/hr=E_{(change)}\)

\(P=\frac{E}{t}\)

\((KW)(s)=1000J\)

\((3600)(KW)(s)=3600*1000J\)

\(KW=3.6*10^6\)

\(\frac{6.1*10^9}{3.6*10^6}=\frac{x}{1KW}\)

\(1.694*10^3KW/hr\)

Hope it helps

I feel like it is short term, also it isnt simple

Answer:

there are 1,000m in a km, so 200km is 200,000m

200,000m/10m/s = 20,000s

Explanation:

Please mark me Brainlyest

Answer:

SI units are used for scientific works to bring uniformity in measurements all over the world.