Omagine that you could build a telescope of any size in your backyard. Ultimately, the smallest angular size that could be resolved by this telescope would be governed by the?.

According to Newton's law of cooling, The formula that models the cooling of the turkey is T(t) = (165 - 75) * e^(k * t) + 75. The temperature of the turkey 50 minutes after it leaves the oven will be approximately 118°F.

(a) The formula that models the cooling of the turkey is T(t) = (165 - 75) * e^(k * t) + 75.

In this case, the temperature difference between the turkey and the room, when it came out of the oven, is A = 165 - 75 = 90°F, and Ts (the temperature of the room) is 75°F. By substituting these values into the equation T(t) = A * e^(k * t) + Ts, we get T(t) = 90 * e^(k * t) + 75.

To find the value of k, we can use the information that when t = 30 minutes, T(30) = 145°F. Substituting these values into the equation and solving for k, we have 145 = 90 * e^(k * 30) + 75. Rearranging and solving, we find k ≈ -0.0207.

(b) The temperature of the turkey 50 minutes after it leaves the oven will be approximately 118°F.

To calculate the temperature at t = 50 minutes, we can use the formula T(t) = 90 * e^(-0.0207 * t) + 75. Substituting t = 50, we have T(50) = 90 * e^(-0.0207 * 50) + 75. Evaluating this expression, we find T(50) ≈ 118°F.

(c) It will take approximately 145 minutes for the turkey to cool to 110°F.

To determine the time it takes for the turkey to reach a temperature of 110°F, we can rearrange the equation T(t) = 90 * e^(-0.0207 * t) + 75 and solve for t. So, 110 = 90 * e^(-0.0207 * t) + 75. Solving this equation, we find t ≈ 145 minutes.

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Answer:

1. Work Is a type of Physical Activity  

2. Power is Basically Having control of Society

Explanation:

Answer:

Yes, the sugar molecules produced from photosynthesis can be rearranged into different compounds to carry out life processes such energy producing compounds, energy storage compounds, body building compounds, and compounds of other types of food

Explanation:

a) The sugar can be broken down in a plant cell to produce ATP and then energy through cellular respiration as follows;

C₆H₁₂O₆ + O₂ 6CO₂ + 6H₂O + ATP

The produced energy can be used as power for cellular activities, such as the synthesis of protein and cell division

b) The produced sugar can be linked together by enzymes to form starch which is a form of chemical storage of energy as follows;

Sugar C₆H₁₂O₆ transformed into starch (C₆H₁₀O₅)ₙ

c) The sugar can be used in building the plant body by forming cellulose which is a form of starch

d) The sugar can be transformed into proteins and fat which are other types of food such as compounds containing sugar produces compounds containing fat based compounds

Answer: Which of these statements is most likely correct about the stars?

Star 2 attracts Star 1 with a greater gravitational force than Star 1 attracts Star 2.

No, because Third Newton Law states that both forces are equal in magnitude.

Earth exerts almost equal gravitation force on both the stars.

No, because the Universal Gravitational Law, estblished by Newton, states the atraction force to two masses is proportional to the product of the masses.

Star 1 attracts Star 2 with a greater gravitational force than Star 2 attracts Star 1.

No (same reason for the first statement)

Earth exerts greater gravitation force on Star 2 than on Star 1.

Right. This is the correct statement. Given the mass of Star 2 is greater than the mass of Star 1, by the Universal Gravitational Law, the earth exerts greater gravitational attraction on Star 2.

Explanation:

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Answer:

thanks me later

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Answer:

144 kg m^2/s

Explanation:

The work done on a body when it is lifted through a height h appears in the form of its potential energy. Therefore, option (b) is the correct answer.

What is Geothermal Energy?

Geothermal energy is a type of renewable energy that is derived from the heat generated deep beneath the Earth's surface. It is produced by harnessing the naturally occurring heat from the Earth's core, which can be used to generate electricity or heat buildings directly. This energy can be accessed by drilling deep wells into the Earth's crust and tapping into the hot water and steam that is naturally present in underground reservoirs.

When a body is lifted through a height h, the work done on it appears in the form of potential energy. This is because the energy is stored in the body due to its position or configuration, rather than its motion.

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Answer:

Absolutely no real-life phenomena/ uses are possible that are related to any branch of physics, except:

1 The device you are reading this answer on. (quantum mechanics, electronics )

2 The air conditioner in your room. ( electromagnetism, electronics )

3 The satellites and space stations in space which will help in the deciphering of the universe will help us look for a suitable planet when we render the earth useless. ( general and special relativity, classical mechanics )

4 Ohh. I forgot, do you wear clothes, well they are made in factories where factories run on the principles of thermodynamics, which is physics.

5 Ever gone somewhere? Well, the transportation uses classical mechanics, thermodynamics, electromagnetism, relativity ( if you know Global Positioning System )

6 GPS itself! It’s used in online maps, navigating, and this sort of stuff. It works on general relativity.

Honestly, this list is endless.

Answer:

r=(2(2)+1)=5

the magnitude is 5

Answer:

Approximately \(0.45\) (assuming that the surface is level, the mass is moving at constant velocity, and that \(g = 9.81\; {\rm m\cdot s^{-2}}\).)

Explanation:

With a power of \(P = 1.0\; {\rm kW} = 1.0\times 10^{3} \; {\rm W}\), the work that would be done over \(t = 10\; {\rm s}\) would be:

\(\begin{aligned}(\text{work}) &= (\text{power})\, (\text{time}) \\ &= (1.0\times 10^{3}\; {\rm W})\, (10\; {\rm s}) \\ &= 1.0 \times 10^{4}\; {\rm J}\end{aligned}\).

Divide work by distance to find the force that did the work:

\(\begin{aligned} (\text{force}) &= \frac{(\text{work})}{(\text{distance})} \\ &= \frac{1.0\times 10^{4}\; {\rm J}}{50\; {\rm m}} \\ &= 200\; {\rm N}\end{aligned}\).

If this mass is moving at a constant velocity, the magnitude of friction on this mass will be equal to that of the external force, \(200\; {\rm N}\).

If the surface is level, the magnitude of the normal force on this mass will be equal to that of weight:

\(\begin{aligned}(\text{weight}) &= (\text{mass})\, g \\ &= (45\; {\rm kg})\, (9.81\; {\rm N\cdot kg^{-2}}) \\ &\approx 4.41 \times 10^{3}\; {\rm N}\end{aligned}\).

Divide the magnitude of friction by normal force to find the coefficient of friction:

\(\begin{aligned}& (\text{coefficient of friction}) \\ =\; & \frac{(\text{friction})}{(\text{normal force})} \\ \approx\; & \frac{200\; {\rm N}}{(45\; {\rm kg})\, (9.81\; {\rm N\cdot kg^{-1}}))} \\ \approx \; & 0.45\end{aligned}\).

The average velocity of water flowing through a pipe with a cross-sectional area of 0.002 m² at a mass flow rate of 4 kg/s is 2 m/s.

The formula for average velocity is:

v = Q / A

Where:

The formula for volume flow rate is:

Q = m / ρ

Where:

Substituting the values:

Given that the cross-sectional area of the pipe is 0.002 m², the mass flow rate is 4 kg/s, and the density of water is 1000 kg/m³, the average velocity is:

Therefore, the average velocity of water flowing through a pipe with a cross-sectional area of 0.002 m² at a mass flow rate of 4 kg/s is 2 m/s.

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Yes, these two waves will result in a standing wave. When two waves with the same amplitude and wavelength travel in opposite directions and have the same speed, they interfere with each other and create a standing wave pattern.

The points where the waves are in phase (constructive interference) will create regions of high amplitude (called antinodes), while the points where the waves are out of phase (destructive interference) will create regions of low amplitude (called nodes). Therefore, in this case, the two waves will combine to form a standing wave pattern with nodes and antinodes spaced 5 cm apart.

These two waves with equal amplitudes (7 cm), wavelengths (10 cm), and speeds (v), but traveling in opposite directions, will result in a standing wave. This occurs because the waves will interfere constructively and destructively, creating nodes and antinodes that appear stationary.

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The highest altitude reached, measured from the surface, is R i^2 which is option (c ) .

A projectile is a body that is hurled or thrown with some velocity into the air and then falls to the ground under the force of gravity. The most common examples of projectiles are a ball that is thrown from a height, a bullet that is fired from a gun, a cannonball that is launched from a cannon, or a stone that is thrown up into the air.

Each of these objects moves through the air and experiences the effects of gravity.

The highest altitude that a projectile reaches can be computed using the following formula;

h = (v₀² / 2g), Where h is the maximum height of the projectile, v₀ is the initial velocity of the projectile, and g is the acceleration due to gravity. When the projectile reaches its highest altitude, its final velocity is zero because it has stopped moving upwards.

Therefore, using the formula; v² = v₀² + 2gh, Since the projectile is fired straight upward, its final velocity will be zero.

Hence, using the formula for escape velocity, we have;

ve = √(2GM/R), where G is the gravitational constant, M is the mass of the earth, and R is the radius of the earth.

Half the escape velocity would be; v₀ = ve/2. Substituting this value in the formula for the maximum height gives;

h = (v₀² / 2g) = ((ve / 2)² / 2g) = (Ri² / 2) =  Ri².

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Answer:

259200

Explanation:

use the formula distance= speed x time

change the 2 hours to seconds (7200) and multiply that number by 36 and it'll give you 259200

Answer:

12 kilometers and hour

Explanation:

Mass of the mars is 6.48 * \(10^{23\\\) kg.

Mars, the fourth planet from the Sun, is a dusty, cold desert world with a thin atmosphere.

Phobos is the larger of the two heavily cratered Martian moons and is dominated by three large craters.

Orbit period for Phobos = T = 7 h 39 min = 459 min

Radius of Phobos' orbit = r = 9.4 * \(10^{6}\) m

According to the Gravitational force and Centripetal force,

here both forces will be equal,

therefore (GmM/r²) = mrω²

m = mass of the Phobos

M is the mass of Mars

r is the Phobos' orbit radius

ω = (2\(\pi\)/T) =  (2\(\pi\)/459)

G is the gravitational constant =  6.67 * \(10^{-11}\)

(GmM/r²) = mrω²

M = (ω²r³/G)

M = (2\(\pi\))² * (9.4 * \(10^{6}\))³/ (459 * 60)³ * 6.67 * \(10^{-11}\)

M = 6.48 * \(10^{23\\\) kg

Mass of the planet mars is 6.48 * \(10^{23\\\) kg.

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Introducing the revolutionary new compass - the perfect tool for exploring the world! With the help of the compass, explorers can now easily determine their location and direction with just a few simple steps.

In navigation or surveying, a magnetic compass is a tool that uses a magnetic pointer that aligns with the Earth's magnetic field to determine direction on the planet's surface. The magnetic compass, which comes in a variety of configurations and is the oldest and most widely used type of compass, is used by surveyors and is employed in ships, aeroplanes, and other ground vehicles.

The finding that a piece of lodestone, a naturally occurring magnetic mineral, when floated on a stick in water, tends to align itself so that it points in the direction of the polestar was made by seamen in China and Europe sometime in the 12th century.

The magnetic field that emanates from the inside of the Earth into space is known as the geomagnetic field, and it interacts with the solar wind, a stream of charged particles that travels out from the Sun, there. The motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core, which are brought on by heat escaping from the core and are a result of a natural phenomenon known as a geodynamo, is what creates the magnetic field.

Introducing the revolutionary new compass - the perfect tool for exploring the world! With the help of the compass, explorers can now easily determine their location and direction with just a few simple steps. The magnetic compass needle points to the south pole when it is suspended freely and always stays in true north-south alignment. With the compass, you'll never struggle to find your way again. Invest in the compass today and become the master of your own destiny!

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Therefore, the super happy ball will take 32 bounces and travel the distance of less than 1 foot.

First bounce = 13 / 14 × 10 = 130 /14

using geometric progression where the common ratio = 13/14, the first bound = 130/14

ar^n-1 < 1

substitute the values into the equation

130 /14 × 13/14^(n-1) < 1

(13/14)^n-1 < 1÷ (130/14)

(13/14)^n-1 < 14 / 130

take log of both side

log (13 /14)^n-1 < log ( 14/130)

n-1 log (13 /14) < log  ( 14/130)

since log (13/14) negative

n-1 > (log( 14/130)) ÷ ( log (13/14)

n - 1 > 30.07

n > 30.07 + 1 > 31.07

The 32 bounce will the travel less than 1 foot.

Therefore, the super happy ball will take 32 bounces and travel the distance of less than 1 foot.

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Therefore, the second thinnest coating of fluorite (magnesium fluoride) that would be nonreflective for 700-nm red light is approximately 126.81 nm.

To determine the second thinnest coating of fluorite (magnesium fluoride) that would be nonreflective for 700-nm red light, we can use the concept of interference and the equation for the thickness of a nonreflective coating.

The thickness of a nonreflective coating for a given wavelength is approximately equal to λ/4n, where λ is the wavelength and n is the refractive index of the coating material.

For magnesium fluoride (MgF2), the refractive index for red light (700 nm) is approximately 1.38.

Plugging these values into the equation, we can calculate the thickness of the coating:

Thickness = λ/4n = (700 nm)/(4 * 1.38) ≈ 126.81 nm.

It's worth noting that this value assumes ideal conditions and a single-layer coating. In practical applications, multiple layers or more complex coating designs may be employed to achieve optimal anti-reflective properties.

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Answer:

It is Limiting Reactant

Explanation:

Explanation:

Hello, nice to meet you.

this answer will help for you

Answer:

Missing Details, Most Are Approximations,Simplicity

Explanation:

I just had this question

Answer:

It allows you to see fetuses before they are born.

Explanation:

because it has many helpful measures....

it helps in breaking and crushing the kidney stones...due to its high frequency....

The reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².

Given that the mass of a person is 60.0 kg and the elevator accelerates upwards with an acceleration of 4.90 m/s², we have to determine the reading on the scale.

Let F be the force exerted by the scale on the person. Then, by Newton's second law of motion, the net force acting on the person is Fnet= m * a

where m = 60.0 kg is the mass of the person and a = 4.90 m/s² is the acceleration of the elevator. Hence, the net force acting on the person is given by;

Fnet = 60.0 kg * 4.90 m/s²

Fnet = 294.0 N

Therefore, the scale reading is equal to the force exerted by the scale on the person. Since the elevator is accelerating upwards, the force exerted by the scale on the person is greater than the weight of the person, which is the force of gravity acting on the person.

The force of gravity acting on the person is given by;

Fg = m * g, where g = 9.81 m/s² is the acceleration due to gravity. Hence, the force of gravity acting on the person is given by;

Fg = 60.0 kg * 9.81 m/s²Fg = 588.6 N

Therefore, the scale reading is given by the sum of the force of gravity acting on the person and the net force acting on the person;

F = Fg + Fnet

F = 588.6 N + 294.0 N

F = 882.6 N

Thus, the reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².

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The horizontal force exerted by air resistance on the bucket is 5,210 N.

The horizontal force exerted by air resistance on the bucket is the parallel force on the cable carrying the bucket.

The magnitude of this force is calculated as follows;

Fx = mg cosθ

where;

Fx = (590 x 9.8) x cos(25.7)

Fx = 5,210 N

Thus, the horizontal force on the bucket is determined from parallel force on the rope.

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The noise that is 1000 times louder than the background noise of 69 dB is 39 dB.

The background noise in a room is measured to be 69 dB.

To determine how many dB is 1000 times louder, we can use the following formula:

\($$\text{dB difference}=10\log_{10}\frac{I_1}{I_2}$$\)

Where \($I_1$\) and \($I_2$\) are the two intensities being compared. We can assume that the background noise is \($I_1$\) and the noise that is 1000 times louder is \($I_2$\). Therefore,

\($$I_2=1000I_1$$\)

Substituting this into the formula gives:

\($$\text{dB difference}=10\log_{10}\frac{I_1}{1000I_1}=10\log_{10}\frac{1}{1000}=-30\text{ dB}$$\)

Therefore, the noise that is 1000 times louder than the background noise of 69 dB is 39 dB.

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A copper wire is stretched so that its length increases and its diameter decreases. As a result option (B) The wire resistance increases but its resistivity stays the same

When a copper wire is stretched, its cross-sectional area decreases, but its length increases. The wire resistance depends on its length, cross-sectional area, and resistivity according to the formula R = (ρL)/A, where R is resistance, L is length, A is cross-sectional area, and ρ is resistivity.

Since the length increases and the cross-sectional area decreases, the wire's resistance will increase. However, the resistivity of copper remains constant regardless of changes in its shape. Therefore, the wire's resistivity will stay the same, and only its resistance will increase.

Therefore, the correct option is (B) The wire resistance increases but its resistivity stays the same.

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Answer:

86605.08 N

Explanation:

The equation to calculate the force is:

Force = mass * acceleration

The force and the acceleration does not have the same direction in this case, so we need to decompose the force into its horizontal component, which is the force that will generate the horizontal acceleration:

Force_x = Force * cos(30)

Then, we have that:

Force_x = mass * acceleration

Force * cos(30) = 25000 * 3

Force * 0.866 = 75000

Force = 75000 / 0.866 = 86605.08 N