1. Surface temperatures on the planet Mars range from –89 °C to –31 °C. Express this temperature range in Kelvin.

2. The average surface temperature on Jupiter is about 165K. Express this temperature in degrees Celsius.

3. The average surface temperature on Saturn is 134K. Express this temperature in degrees Celsius.

4. The average surface temperature on the dwarf planet Pluto is 50K. Express this temperature in degrees Celsius.

5. The Sun has several regions. The apparent surface that we can see from a distance is called the photosphere. Temperatures of the photosphere range from 5,000 °C to 8,000 °C. Express this temperature range in Kelvin.

The skater does indeed reach the same height on either side of the track With friction turned on.

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Answer:

The spring constant will be "1333.33 N/m".

Explanation:

The given values are:

Mass,

m = 1.2 kg

Displacement compression,

x = 0.15 m

Block's velocity,

\(v_i=5 \ m/s\)

As we know,

⇒  \(E_i=E_f\)

or,

⇒  \(K_i+v_i=K_f+v_f\)

⇒  \(\frac{1}{2}mv_i^2+0=0+ \frac{1}{2}Kx^2\)

So,

⇒  \(K=\frac{mv_i^2}{x_2}\)

On substituting the values, we get

⇒       \(=\frac{1.2\times 5\times 5}{0.15\times 0.15}\)

⇒       \(=\frac{30}{0.0225}\)

⇒       \(=1333.33 \ N/m\)

Explanation:

 A burning candle emits radiation in the form of heat and light. The Sun emits radiation in the form of light, heat, and particles.

Answer: The energy from the sun is one great example of radiation. The sun emits light in a broad range of wavelengths which all contain energy. These waves are also discussed in the climate section for energy balance. The waves are emitted from the sun and travel through space and hit the earth and other planets.

EXTRA EXAMPLES: heat from a stove burner.

visible light from a candle.

x-rays from an x-ray machine.

alpha particles emitted from the radioactive decay of uranium.

sound waves from your stereo.

microwaves from a microwave oven.

electromagnetic radiation from your cell phone.

Answer:

Not not all of the elements have been discovered.

The hydroxide ion concentration in a solution is 3.31*10^-8M.

To find the answer, we have to know more concentration of solution.

                     \(pH=-log[H_3O^+]\)

                   \([H_3O^+]=-10^{pH}=10^{-6.25}=5.6*10^{-7}M\)

                        \(K_w=[H_3O^+][OH^-]\\Where,\\K_w=10^{-14}\)

                         \([OH^-]=\frac{K_w}{[H_3O^+]} =\frac{10^{-14}}{10^{-6.52}}\\\\\)

                           \([OH^-]=3.31*10^{-8}M\)

Thus, we can conclude that, the hydroxide ion concentration in a solution is 3.31*10^-8M.

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Answer:

if somthing is warm or if somthing moves it usally has energy

Electricity is defined as the flow of electrical current through a conductor.

A fundamental type of energy that is produced by the presence and movement of electric charge is electricity. The passage of electrons or other charged particles across a conductor, like a wire, is what defines the phenomena. It includes the creation, transmission, and use of electric energy, as well as the full field of electric phenomena.

Therefore,

Electricity is defined as the flow of electrical current through a conductor.

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Answer:

The magnetic force acting on the proton is 1.68 x 10^-18 N.

Explanation:

magnetic field, B = 5 T

speed , v = 2.1 m/s

charge q = 1.6 x 10^-19 C

Angle, A = 90 degree

The magnetic force on the charge particle is given by

\(F = q v B sin A\\\\F = 1.6\times 10^{-19}\times 2.1\times 5\times sin 90\\\\F = 1.68\times 10^{-18} N\)

53.64 m is the shortest distance you can stop an automobile by locking the brakes.

The resistive force of friction (Fr), which pushes the objects together, is divided by the normal or perpendicular force (N), which pushes them apart, to produce the coefficient of friction (fr), which is a numerical value. The following formula represents it: fr = Fr/N.

Given;

kinetic friction coefficient is 0.80.

automobile's speed, u = 28.7 m/s

Applying the following equation, we can determine the shortest distance over which an automobile can be stopped by locking the brakes:

v² = u² + 2ax

First, we establish a;

the second law of motion, Newton

v² = u² + 2ax

First, we establish a;

the second law of motion, Newton

F = ma

F is the amount of kinetic friction preventing the car from moving

-F = ma

but, -F = -μN

-μN = ma

-μmg = ma

-μg = a

- 0.8 x 9.8 = a

-7.84 m/s² = a

Add the value of a to the equation above now

v² = u² + 2ax

F = ma

F is the amount of kinetic friction preventing the car from moving

-F = ma

but, -F = -μN

-μN = ma

-μmg = ma

-μg = a

- 0.8 x 9.8 = a

-7.84 m/s² = a

Add the value of a to the equation above now

v² = u² + 2ax

When the car comes to a stop, its final speed is v = 0.

0 = 28.7² + 2(-7.84)x

0 = 823 - 15.68x

15.68x = 823

x = 823 / 15.68

x = 52.48 m

Therefore, 52.48m is the shortest distance you can stop an automobile by locking the brakes.

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Answer: 2NaHCO3 + CaCl2 > 2NaCl + CaCO3 + CO2 + H2O

Explanation:

It seems like your equation is balanced, but I'll explain how:

Unbalanced: NaHCO3 + CaCl2 > CaCO3 + NaCl + CO2 + H2O

The best ones to balance first are the ones that aren't C, H, or O

Balance Na:

Since there is 1 Na on the reactants and one on the products, we're fine now.

Balance Ca

That is also fine for now.

Balance Cl

Since there are 2 Cls on the reactants, you need 2 Cls on the products. The only product with Cl is NaCl, and since you have two, multiply the NaHCO3 and the NaCl by 2, since that way, it can be balanced with the CaCl2

Now, our equation is 2NaHCO3 + CaCl2 > 2NaCl + CaCO3 + CO2 + H2O

Balance C:

There are 2 Cs on the product, and 2 on the reactants, so that's fine.

Balance H:

There is one on both sides, so that's fine

Balance O:

There are 6 on both sides, so that's fine.

Your equation is balanced.

Given that the angular speed of the 27-inch-diameter tire is 5π radians per second. We need to find out the speed at which the cyclist is traveling.

The formula that relates angular speed, linear speed and radius of rotation is given as:v = rωwhere,v is the linear speed,ω is the angular speed andr is the radius of rotation.Since the diameter of the tire is 27 inches, the radius is 27/2 = 13.5 inches = 1.125 feet.Substituting the values in the above formula,v = rωv = (1.125) × (5π)v = 5.625π

The speed at which the cyclist is traveling when his 27-inch-diameter tires are rotating at an angular speed of 5π radians per second is 5.625π feet per second.

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Answer: A. 25%

Explanation: Ap3x

To find the system function that describes Y(22) in terms of X(), we need to take the Z-transform of the given linear constant coefficient difference equation.

The Z-transform of a sequence y[n] is defined as:

Y(z) = Z{y[n]} = ∑[n=-∞ to ∞] y[n]z^(-n)

Similarly, the Z-transform of a sequence x[n] is:

X(z) = Z{x[n]} = ∑[n=-∞ to ∞] x[n]z^(-n)

In the given difference equation, y[n]y[n - 1] = x[n], we can take the Z-transform of both sides:

Y(z)z^(-1) + Y(z) = X(z)

Rearranging the equation, we get:

Y(z) (z^(-1) + 1) = X(z)

Dividing both sides by (z^(-1) + 1), we find:

Y(z) = X(z) / (z^(-1) + 1)

Now, to find the system function H(z), which describes the output Y(22) in terms of the input X(z), we substitute z = e^(jω) and set z = e^(jωT), where ω is the frequency and T is the sampling period. In this case, we assume T = 1.

Setting z = e^(jωT) = e^(jω), we have:

Y(e^(jω)) = X(e^(jω)) / (e^(-jω) + 1)

The system function H(e^(jω)) is the transfer function evaluated at ω. Therefore, we have:

H(e^(jω)) = Y(e^(jω)) / X(e^(jω))

H(e^(jω)) = (X(e^(jω)) / (e^(-jω) + 1)) / X(e^(jω))

H(e^(jω)) = 1 / (e^(-jω) + 1)

Now, to find H(e^(jω)) at ω = 0 (corresponding to Y(22)), we substitute ω = 0 into the above equation:

H(e^(j0)) = 1 / (e^(j0) + 1)

H(e^(j0)) = 1 / (1 + 1)

H(e^(j0)) = 1 / 2

Therefore, the system function that describes Y(22) in terms of X() is H(e^(jω)) = 1/2.

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The answer to the question, "What is something that you use almost every day that is a polymer?" is:D) plastic
Plastic is the most common example of a polymer that we use daily in various forms, such as bags, bottles, and containers.

Polymers are materials made up of repeating units or monomers, and plastic is one of the most common types of polymers used in everyday life. Plastic can be found in items such as water bottles, food containers, and packaging materials. It is a versatile material that can be molded into various shapes and forms, making it a popular choice for many applications.

Plastic is a polymer, which means it's composed of long chains of molecules. Other options are incorrect because:

A) Metal is not a polymer; it's an element or an alloy of different elements.
B) Gas is a state of matter and not a polymer.
C) Water is a compound  and not a polymer.
E) Wood is a natural material mainly composed of cellulose, which is a natural polymer, but it is not a primary example of a polymer when compared to plastic.

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The magnitude of the particle's velocity at t = 0.5 s is 2 m/s and the magnitude of its acceleration is 12 m/s^2.

The magnitude of the particle's velocity and acceleration can be found by taking the first and second derivative of the position equation, respectively.

First, let's find the velocity:

v = dX/dt = d(4t^4)/dt = 16t^3

At t = 0.5 s, the velocity is:

v = 16(0.5)^3 = 2 m/s

Now, let's find the acceleration:

a = dv/dt = d(16t^3)/dt = 48t^2

At t = 0.5 s, the acceleration is:

a = 48(0.5)^2 = 12 m/s^2

Therefore, the magnitude of the particle's velocity at t = 0.5 s is 2 m/s and the magnitude of its acceleration is 12 m/s^2.

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Answer:

The correct option is;

b. How high the barbell is being lifted

Explanation:

The work done in lifting the 160 N barbell is equal to the potential energy gained by the barbell in the final elevated position of the barbell

Therefore, in order to find the work done to lift the barbell, we can calculate the potential energy gained by the barbell when it is placed at height

The work done to lift the barbell = The potential energy, P.E., gained by the barbell

The potential energy of an object, P. E. = The mass of the object, m × The acceleration due to gravity, g × The height to which the barbell is lifted, h

∴ Mathematically, P.E. = m × g × h

Weight, W = Mass, m × The acceleration due to gravity, g

The weight, W of the barbell is given as W = 160 N

∴ W = m × g = 60 N

From which we have;

P.E. = m × g × h = W × h

∴ The work done to lift the barbell = P.E. = 60 N × h = 60 N × The height to which the barbell is lifted.

Therefore the information which need be known is the height to which the barbell.

Answer:

Explanation:

V

R t t

V t Q P t t

R R

= ⋅ =

=

⋅ ⋅

= = = ⋅ ⇒ = =

The ratio of the  deflection when each galvanometer is connected with the cell is 13:12.

A moving coil used in a galvanometer is used to measure a small electrical current or a function of the current. The current's forces generate mechanical rotational forces that cause the deflection.

Given that:

EMF of the cell: e = 25 volt.

Internal resistance: r = 50 ohm.

Current flows through first galvanometer: I₁ = 25 /( 10+50) amp = 5/12 amp.

Current flows through second galvanometer: I₂ = 25 /( 600+50) amp = 5/130 amp.

Number of turns in first galvanometer: n₁ = 50

Number of turns in second galvanometer: n₂ = 500

As all other conditions of the two galvanometers are same; the ratio of the deflection  when each galvanometer is connected with the cell =

n₁I₁ : n₂I₂

= 50 (5/12) : 500(5/130)

= 1/12 : 1/13

= 13 : 12.

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Answer:

the answer is A

Explanation:

I took the test

Answer:

A

Explanation:

An ideal spring is a concept in physics that assumes a spring with certain ideal properties.

An ideal spring is one that obeys Hooke's Law, which states that the force exerted by the spring is directly proportional to the extension or compression of the spring from its equilibrium position. In other words, an ideal spring exhibits a linear relationship between the force applied and the displacement.

Based on the given options, if spring "F" exhibits a linear relationship between the force applied and the extension, and it follows Hooke's Law, then it can be considered an ideal spring. However, without further information or details about the springs mentioned, it is not possible to determine which spring, if any, meets the criteria of an ideal spring.

Therefore, the answer is that more than one spring could be considered ideal if they exhibit the properties described by Hooke's Law.

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Answer:

Explanation:

Same i need help

The amount manager should invest today in GIC to have C$5 million in 10 years is C$2,775,633.

To find the amount the manager should invest today in a GIC, we can use the future value formula:

FV = PV(1 + r/n)^(nt)

Where FV is the future value, PV is the present value, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the number of years.

In this case, FV = C$5 million, r = 6% (0.06), n = 12 (compounded monthly), and t = 10 years. We need to solve for PV.

Rearrange the formula to solve for PV:

PV = FV / (1 + r/n)^(nt)

Now, plug in the given values:

PV = 5,000,000 / (1 + 0.06/12)^(12*10)

PV ≈ C$2,775,633

The manager should invest approximately C$2,775,633 in the GIC today to have C$5 million in 10 years.

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it is important to note that violence is never a good solution to conflicts, and it's better to seek peaceful ways to resolve differences. I

Who is Jasmine?

Jasmine is a character in the Netflix original series "On My Block." She is portrayed by actress Jessica Marie Garcia. Jasmine is a vivacious, talkative, and confident girl who is a frequent visitor to the neighborhood where the show takes place. She is known for her unique sense of style and her love of gossip. Throughout the show, she becomes friends with the main characters and provides comedic relief to the more serious storylines.

Regarding your second question, while I'm happy to answer questions related to various topics, including entertainment and pop culture, I would recommend focusing on educational and informative questions related to science, technology, history, and other academic fields. These types of questions can help you gain knowledge and improve your understanding of the world around you.

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When mostly vertically directed motion is observed in particles, the force of gravity is the dominant force acting on the particles. This is because gravity is a force that acts vertically downwards towards the center of the Earth,

and it influences the motion of all objects with mass. When particles are subject to gravity, they will tend to move downwards towards the Earth due to the force of gravity. This is true regardless of whether the particles are suspended in air or in a liquid. The magnitude of the force of gravity acting on a particle is determined by its mass and the acceleration due to gravity, which is approximately 9.81 m/s^2 at sea level on Earth.

Other forces that may be present, such as air resistance or buoyancy, can influence the motion of particles. However, in the absence of these forces or when they are relatively small compared to the forces of gravity, particles will experience mostly vertical directed motion due to the dominance of the force of gravity.

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The ring accelerates in the direction of the net unbalanced force. Thus option C is the correct answer.

According to Newton's second law of motion, the net force acting on an object is equal to the mass of the object multiplied by its acceleration. If the forces exerted by the two students in the tug-of-war are unbalanced, there will be a net force acting on the steel ring.

The direction of this net force will be in the direction of the stronger force. As a result, the ring will accelerate in the direction of the net unbalanced force. This means that the ring will begin to move, and its velocity will change as long as the net force is applied.

Since the steel ring is accelerating, it can no longer be at rest, and it will not move at a constant velocity. The ring will move in the direction of the stronger force until the forces exerted by the students are balanced again.

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Answer:

We can solve this problem by using the concept of relative motion. Let's assume that the first boy is running in the clockwise direction and the second boy is chasing him in the counterclockwise direction.

Since the second boy always remains on the radius connecting the center of the circle and the first boy, the distance between them is always equal to the radius of the circle, which is 28 m.

Let's denote the distance covered by the first boy as S1 and the distance covered by the second boy as S2. We know that the first boy is running with a constant speed of 4 m/s, so we can write:

S1 = u*t1

where t1 is the time taken by the first boy to complete the chase.

The second boy is moving with a constant velocity of 4 m/s towards the first boy, so we can write:

S2 = V*t2

where t2 is the time taken by the second boy to catch up with the first boy.

Since the second boy is always moving on the radius connecting the center of the circle and the first boy, the distance covered by him is equal to the distance on the circumference of the circle covered by the first boy, minus the distance covered by the first boy along the radius. We can write:

S2 = S1 - 2*pi*R

where pi is the mathematical constant pi (approximately equal to 3.14).

Substituting the values of S1 and S2, we get:

u*t1 = V*t2 + 2*pi*R

Since the time of chase is (10 + x) sec, we can also write:

t1 + t2 = 10 + x

We have two equations and two unknowns (t1 and t2), so we can solve for them. First, we can solve for t2:

t2 = (u*t1 - 2*pi*R) / V

Substituting this in the second equation, we get:

t1 + (u*t1 - 2*pi*R) / V = 10 + x

Simplifying this equation, we get:

t1*(1 + u/V) = 10 + x + 2*pi*R/V

Finally, we can solve for t1:

t1 = (10 + x + 2*pi*R/V) / (1 + u/V)

Substituting the given values of R, u, and V, we get:

t1 = (10 + x + 56*pi) / 20

Simplifying this expression, we get:

t1 = 2.8*pi + 0.5*x + 2.8

Therefore, the time taken by the first boy to complete the chase is 2.8*pi + 0.5*x + 2.8 seconds.

Explanation:

this gives me nightmare

Answer:

there are many types of family but main is 2

Explanation:

1). joint family 2). nucleic family joint family has mother father grandfather grandmother uncle aunty children. and nucliec family has mother father and childrens

Answer: Childless family, Extended family, Step family, Grandparent family, Single parent family, and Nuclear family.

Explanation:

‘Wave’ is a common term for a number of different ways in which energy is transferred:

In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields.

In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

In water waves, energy is transferred through the vibration of the water particles.