Find Jupiter's mass from the fact that its moon Io orbits every 42.5 hours at an average distance of 422,000 kilometers.

Answer:

42 more weeks or 6 more weeks

Explanation:

Pregnancy lasts for about 280 days or 40 weeks

hope it helps

There is no more time to wait she can have the baby now as it is healthy enough due to it being past the week 29 mark.

What occurs most of the time is the transformation that was brought about in the economy of the United States by a rise in consumer spending that occurred between 1981 and 2001.

Despite the fact that the economy of the United States is now one of the most stable economies in the world, consumer expenditure went increased from 1981 to 2001, which contributed to this trend.

And in terms of economics, there will be a positive shift in the state of the economy whenever there is spending on the part of consumers.

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Answer: the answer is C

Explanation:

an increase in spending by consumers

edg2023

Answer:

Final Velocity:  109.615 m/s

Acceleration:  21.08 m/s²

Explanation:

Distance traveled is given by

Velocity v = Δx/Δt

where Δx is the distance covered and Δt the time to cover that distance

Here Δx = 5.7 x 10² m and t = 5.2 seconds

So v = 5.7 x 10²/5.2 = 109.615 m/s

Acceleration is Δv/Δt where Δv is the change in velocity from an initial velocity and Δt the time taken to reach that initial velocity

Here initial velocity is 0, so Δv= 109.615 - 0 = 109.615m/s

Time to reach this velocity = 5.2 s

So acceleration a =  109.615/5.2 = 21.08 m/s²

Answer:

a. The sheets move toward each other and the gap narrows.

Explanation:

This exercise is related to fluid mechanics, when blowing between the two sheets, we can apply Bernoulli's equation, where the index 2 is the space between the two sheets

       P₁ + ½ ρ g v₁² + ρ g y₁ = P₂ + ½ ρ g v₂² + ρ g y²

if the two leaves are at the same height

                      y₁ = y₂

 whereby

         P₁ + ½ ρ g v₁² = P₂ + ½ ρ v₂²

for the air velocity between the leaves let us use the continuity equation

        A₁ v₁ = A₂ v₂

the area between the leaves is less than the external area, so the air speed must increase. If we use this in Bernoulli's equation, increasing the speed 2 (between the leaves) to maintain equality the pressure must decrease.

If the pressure decreases, the blades should move closer

When resisting the answers, the correct one is  a

The direction of the resultant force on the ball = 28.3°

Sue's foot exerts a force of 28.85 N East

Jenny's foot exerts a force of 15.53 N North

This can be represented diagrammatically as:

The magnitude of the resultant force, R, is calculated using the Pythagora's theorem

The resultant force on the ball is 32.76N

The direction of the resultant force is given as:

The direction of the resultant force on the ball = 28.3°

To find the mass in kilograms, you need to know the object's weight in newtons and the acceleration due to gravity. The formula for finding mass is mass = weight / acceleration due to gravity. So if you have an object with a weight of 100 N and the acceleration due to gravity is 9.8 m/s^2, the mass would be 10.204 kg.

The mass of the block is 0.025 kg or 25 g, when the spring has k = 28 N/m, and compresses 0.11 m before bringing the block to rest.

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The power that can be transmitted at 2000 rpm through a shaft with a 30-mm diameter is 55.5165kw.

Power=\(\frac{265.072*2*pi*2000}{60} = 55.5165kw\)

Resale rate upkeep (RPM) exists with a dealer specifying the minimal (or most) fee at which the product ought to be re-sold to clients. Context: From a competition policy viewpoint, specifying the minimal fee is of challenge.

Resale price upkeep Agreements (RPMs) are arrangements where resellers agree that they'll sell products or products at positive fees at or above charge ground (minimum RPM) or at or below a rate ceiling (most RPM). Early in the twentieth century RPM agreements were consistent with se illegal underneath federal antitrust regulation. Resale price protection (RPM) specifies the final fee that outlets fee purchasers. This roundtable targeted on using RPM for books, newspapers, and similar cultural merchandise. Resale price upkeep (RPM) exists with a dealer specifying the minimum (or maximum) rate at which the product must be re-sold to clients.

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Answer: wow that’s hard

Explanation:

The average speed traveled by car is \(35m/s\).

\(1^{st}\) case

       Distance \(=\) \(speed*time= 50*20=1000m\)

\(2^{nd}\) case

       Distance\(=30*30=900m\)

\(3^{rd}\) case

       Distance\(=20*10=200m\)

Now, The total distance\(=(1000+900+200)m=2100m\)

        Total time\(=(20+30+10)s=60s\)

       Average distance \(=\frac{total distance}{total time} = \frac{2100}{60}=35m/s\)

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mvh=1. 654106. 6210=41014m is the de Broglie wavelength of a proton whose kinetic energy is equal to that of the proton.

An electron has an energy of 100,000 eV (100 keV) at a potential difference of 100,000 V (100 kV), and so on. The energy gained by an ion with a double positive charge when it is accelerated through 100 V is 200 eV.

De Broglie wavelength is the length of a particle with kinetic energy E. The wavelength changes to /2 when energy E is added to it.

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Answer:

1)  speed of a cyclist = 100 m/min.

2) speed of a car moving = 3 km/min.

Explanation:

1)  speed of a cyclist = distance over time

                                  = 2000 m / 20 min

                                  = 100 m/min.

2) speed of car moving = distance over time

                                       = 60 km / 20 min

                                        = 3 km/min.

The components of the net force on the cart is determined as 67.66 N.

The component of net force on the cart is determined by resolving the forces into x and y -components.

T1 = 30 N

T2 = 40 N

T1x = -30cos(0) = 30 N

T1y = 30sin(0) = 0

T2x = 40 x cos(30) = 34.64 N

T2y = 40 x sin(3) = 20 N

∑X = 30 N + 34.64 N = 64.64 N

∑Y = 0 + 20 N = 20 N

R = √(64.64² + 20²)

R = 67.66 N

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Answer:

D

Explanation:

D - The total energy in the universe is constant

The first law of thermodynamics states that heat is also another form of energy, and that thermodynamic processes are as a result, subjected to the principle of conservation of energy. The principle of conservation of energy is another way of boldly saying that heat energy cannot be created and neither can heat energy be destroyed.

I hope that's clear enough

Abigail drives her car with a constant speed of 32 miles per hour . How far can she travel in 1 hour?

Abigail is driving 32 miles an hour. This means she goes 32 miles in 1 hour.

The acceleration of the block down the incline is given by,

\(- a = \dfrac{ mgsin\theta - \mu sN }{m}\text{ if }mgsin\theta > \mu sN\\\\a = \dfrac{ mgsin\theta - \mu kN }{m}\text{ if }mgsin\theta \le \mu sN\)

where N = mgcosθ.

Let N be the normal force acting on the block, and F be the force of friction acting on the block. The force acting down the incline is mgsinθ, where g is the acceleration due to gravity. The net force acting on the block down the incline is given by Fnet = mgsinθ - F. Therefore, the acceleration of the block down the incline is given by a = Fnet/m.

If the block is not yet sliding, we have F = \(\mu sN\). Therefore, the maximum value of the force of friction is \(\mu sN\). If the force of gravity down the incline is greater than the maximum force of static friction, the block will begin to slide, and we have F  = \(\mu kN\).

Therefore, the acceleration of the block down the incline is given by:

\(- a = \dfrac{ mgsin\theta - \mu sN }{m}\text{ if }mgsin\theta > \mu sN\\\\a = \dfrac{ mgsin\theta - \mu kN }{m}\text{ if }mgsin\theta \le \mu sN\)

where N = mgcosθ.

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--The complete question is, What is the acceleration of a block of mass m sliding down a right inclined surface that makes an angle θ with respect to the horizontal, given the coefficients of static and kinetic friction?--

The tax rate you will pay is displayed in tax brackets for each category of taxable income.

Thus, For instance, in 2022, the first $10,275 of your taxable income is subject to the lowest tax rate of 10% if you are single.

Up until the maximum amount of your taxable income, the following portion of your income is taxed at a rate of 12%.

As taxable income rises, the tax rate rises under the progressive tax system. Overall, this has the result that taxpayers with higher incomes often pay a greater rate of income tax than taxpayers with lower incomes.

Thus, The tax rate you will pay is displayed in tax brackets for each category of taxable income.

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The work done to pull the object 7.0 m is the total area under the graph from 0.0 m to 7.0 m, determined as 245 J.

The area under force versus displacement graph is work done.

The total work done by pulling the object 7 m, can be grouped into two areas;

A1 = ¹/₂ bh

A1 = ¹/₂ x (2) x (20)

A1 = 20 J

A2 = ¹/₂(large base + small base) x height

A2  = ¹/₂[(7 - 2) + (7-3)] x 50

A2 = ¹/₂(5 + 4) x 50

A2 = 225 J

W = A1 + A2

W = 20 J + 225 J

W = 245 J

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Answer:

The answer is below

Explanation:

a) Using the formula:

\(\omega^2=\omega_o^2+2\alpha \theta\\\\\omega=final\ angular\ velocity,\omega_o=initial\ anglular\ velocity,\alpha= angular\ acceleration,\\\theta=angular\ distance\\\\Given\ that:\\\\initial\ velocity(u)=28.78m/s,distance(s)=50\ m,radius(r)=0.25\ m,\\final/ velocity(v)=0(stop)\\\\\omega=v/r=\frac{28.78m/s}{0.25m} =115.12\ rad/s,\omega_o=0,\theta=s/r=\frac{50\ m}{0.25\ m}=200\ rad\\ \\\omega^2=\omega_o^2+2\alpha \theta\\\\115.12^2=0^2+2\alpha(200)\\\\2\alpha(200)=13252.6144\\\\\alpha=33.13\ rad/s^2\)

b)

\(\theta=200\ rad=200\ rad*\frac{1\ rev}{2\pi\ rad}=31.83\ rev\)

The special and general theories of relativity and Albert Einstein's audacious theory that light is a particle are his most famous works as a physicist and Nobel winner. The most well-known scientist of the 20th century is perhaps him.

In March 1879, he was born in Ulm, Württemberg. He had a great interest in nature and the capacity to comprehend challenging mathematical ideas even as a young man in Munich. He had an unremarkable high school experience, doing exceptionally well in arithmetic but completely failing the classics, which were then thought to be crucial for anybody planning to attend college. He detested school's dreary regimentation and uncreative atmosphere.

The second study established a lot of information regarding the nature of molecules and explained Brownian motion, which is the random jostling of molecules floating in a fluid. 16 years later, this study helped him win the physics Nobel Prize.

However, his third work, "On the Electrodynamics of Moving Bodies," was left out of the award's wording. The third article was the one that would have the biggest impact on contemporary physics. It included Einstein's Special Theory of Relativity, which greatly simplified how we think about how radiation, like light, interacts with matter. Speaking about one body moving and another being motionless has no real significance, according to Einstein. Only in connection to one other can bodies be conceived of as moving;

This specifically implies that, regardless of the frame of reference, electromagnetic radiation's (such as light's) speed remains constant. Even well-known scientists struggled to comprehend this theory because of Einstein's insightful and audacious viewpoint. But over time, when the predictions made by his theory were repeatedly verified, the Special Theory of Relativity finally transformed how scientists thought about matter, space, time, and everything that interacts with them.

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Answer:

static friction

Explanation:

As I mentioned before static is just the object is started to move if it kentic it is moving

Answer:

The bulb with higher temperature(4000 K) will be brighter

Explanation:

From the question we are told that

     The color temperature  for first bulb is  \(T_1 = 2000K\)

        The color temperature  for second bulb is  \(T_2 = 4000K\)

Generally the emission power of black body radiation is mathematically represented as

     \(E = \sigma T^4\)

Where  \(\sigma\) is the Stefan-Boltzmann constant  with a value \(\sigma = 5.67 * 10^{-8} W m^{-2} K^{-4.}\)

Now for \(T_1 = 2000K\)

      \(E_1 = 5.67*10^{-8} * (2000)^4\)

       \(E_1 = 907.2 \ W/m^2\)

At  \(T_2 = 4000K\)

       \(E_2 = 5.67*10^{-8} * 4000\)

        \(E_2 = 14515.2 \ KW/m^2\)

Looking at the result we got we see that  the emission power  for the higher temperature bulb is higher, this means that its power to emit in the visible spectrum range would be higher  

So the bulb with higher temperature will be brighter

Answer:

C. The amount of energy absorbed by a medium can depend on a wave's properties.

Explanation:

The statement that is true of how a medium absorbs a wave's energy is:

C. The amount of energy absorbed by a medium can depend on a wave's properties.

When a wave travels through a medium, the medium can absorb some of the wave's energy, which can cause the wave to weaken or decrease in amplitude. The amount of energy that is absorbed by the medium can depend on various factors, such as the properties of the medium, the frequency and wavelength of the wave, and the intensity of the wave. For example, certain materials may be more effective at absorbing certain wavelengths of light, while others may be more effective at absorbing sound waves of specific frequencies. Therefore, the amount of energy absorbed by a medium can depend on the properties of the wave as well as the medium it is traveling through.

Hi there!

Recall the following:

\(V \text{ (Electric Potential Energy) } = \frac{kq_1q_2}{r}\\\\F_E = \frac{kq_1q_2}{r^2}\)

k = Coulomb's Constant (Jm/C²)

q = Charge (C)
r = distance between charges (m)

To calculate the electric force between the two charges, we can simply divide by another 'r' (distance):

\(F_E = \frac{70}{0.049} = \boxed{1428.57 \mu J}\)

Answer:

it's an insulator

Explanation:

Insulators provides resistance

Answer:

C. insulator

Explanation:

big sorry for this

imma follow you

Answer:

Burning coal and boiling water are both chemical changes. Burning coal is a chemical change, and boiling water is a physical change. Burning coal is a physical change, and boiling water is a chemical change.

Explanation:

The density of the second liquid is 0.812 g/cm³

To calculate the density of the second liquid, we need to use the principle of displacement. The mass of the liquid can be found by subtracting the mass of the empty density bottle from the mass of the bottle filled with the liquid. Therefore, the mass of the liquid is:

mass of liquid = mass of bottle + liquid - mass of empty bottle

mass of liquid = 39.84g + x - 18.00g

where x is the mass of the liquid.

We can now use the density formula, which is:

density = mass/volume

The volume of the liquid is equal to the volume of the density bottle that is filled with the liquid, which can be calculated by subtracting the volume of the empty bottle from the volume of the bottle filled with the liquid. Therefore, the volume of the liquid is:

volume of liquid = volume of bottle filled with liquid - volume of empty bottle

We can now substitute this expression into the density formula to get:

density of liquid = mass of liquid / (volume of bottle filled with liquid - volume of empty bottle)

We know that the density of water is 1000 kg/m³, which is equal to 1 g/cm³. We can use this to find the volume of the liquid by dividing the mass of water by its density:

volume of water = mass of water / density of water

volume of water = 44.00g / 1 g/cm³

volume of water = 44.00 cm³

Now, we can calculate the volume of the density bottle filled with the second liquid by using the principle of displacement:

volume of bottle filled with liquid = volume of water - volume of liquid

volume of bottle filled with liquid = 44.00 cm³ - (39.84g - 18.00g) / 1 g/cm³

volume of bottle filled with liquid = 44.00 cm³ - 21.84 cm³

volume of bottle filled with liquid = 22.16 cm³

Finally, we can substitute these values into the density formula to get:

density of liquid = x / 22.16 cm³

Solving for x, we get:

x = density of liquid x 22.16 cm³

Substituting x back into the mass equation, we get:

mass of liquid = 39.84g + (density of liquid x 22.16 cm³) - 18.00g

Solving for the density of the liquid, we get:

density of liquid = (mass of liquid - 21.84g) / 22.16 cm³

Substituting the given values, we get:

density of liquid = (39.84g - 21.84g) / 22.16 cm³ = 0.812 g/cm³

In conclusion, the density of the second liquid is 0.812 g/cm³. This value is less than the density of water, which means that the second liquid is less dense than water and will float on top of water.

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Answer:

Explanation:

length = 4.7 m

extension x = (0.11 /100) m + 4.7 m

= 4.7011 m

force = 360 N

spring constant k = ?

formula : F = kx

k = F/ x

k = 360 ÷ 4.7011

k= 76.578 Nm^-1

The spring constant of the wire of a steel wire 4.7 m long stretches 0.11 cm when it is subjected to a tension of 360 N is 76.57 N/m.

Simple, symmetrical motion i.e., SHM is a genuinely fascinating kind of agitation. It is continuously used in the objects' oscillatory motion. Most springs have SHM. The "spring constants" that are intrinsic to springs determine how stiff they are. A well-known law, Hooke's law, describes the SHM and provides a formula for the applied force using the spring constant.

Simple harmonic motions and Hooke's law are related to the definition of the spring constant. Therefore, we must first examine Hooke's rule before attempting to define the spring constant and comprehend how it operates.

Given:

The tension force, T = 360 N,

The length of the wire, L = 4.7 meters,

The elongation, l = 0.11 cm,

Calculate the spring constant by the following formula,

k = T / l

( l = x(0.11 /100) m + 4.7 m= 4.7011 m)

Here, k is the spring constant.

Substitute the values,

k = 360 / 4.7011

k = 76.57 N / m

Therefore, the spring constant of the wire of a steel wire 4.7 m long stretches 0.11 cm when it is subjected to a tension of 360 N is 76.57 N/m.

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Answer:

B. radioactive and it's nucleus can trap or emit particles

Explanation:

Each element is unique because of the number of protons it possesses. All the atoms of one particular element will have same amount of protons. Thus, if I want to change an atom of an element into atom of another element, i must have a way to mess with the proton count and such. These are seen in radioactive process like fusion, fission, nuclear decay etc.

Answer:

The correct answer is "\(\frac{4E}{3}\)".

Explanation:

According to the question,

Energy of satellite,

⇒ \(E_s=-\frac{GM_sM_E}{2r}\)

For the very 1st case:

\(r = R_E+R_E\)

  \(=2R_E\)

or,

⇒ \(E=-\frac{GM_sM_E}{4R_E}\)...(1)

For the new case:

\(r = R_E+\frac{R_E}{2}\)

  \(=\frac{3R_E}{2}\)

then,

⇒ \(E'=-\frac{GM_sM_E}{2 \frac{3R_E}{2} }\)

        \(=-\frac{GM_sM_E}{3R_E}\)...(2)

From equation (1) and (2), we get

⇒ \(E'=\frac{1}{3}(4E)\)

        \(=\frac{4E}{3}\)