The muscle cells of an elephant Zontain 62 chromosomes. How many
chromosomes are in an elephant egg cell?

A radio wave travels at the speed of light, which is equal to approximately 300,000 km/s.

So, to travel a distance of 998.25 km, the time needed is:

Therefore the time required is approximately 3327.5 microseconds.

The height (y) of the pistol is 94 meters. To explain, we can use the fact that the horizontal and vertical motions are independent of each other.

To explain, we can use the fact that the horizontal and vertical motions are independent of each other. Since the bullet is fired horizontally, its initial vertical velocity is zero. We can use the equation for vertical motion:

\(y = (1/2)gt^2\)

where y is the vertical displacement, g is the acceleration due to gravity (approximately 9.8 m/s^2), and t is the time of flight.

The time of flight can be calculated using the horizontal distance and the horizontal velocity:

\(t = d/v\)

where d is the horizontal distance (196 m) and v is the horizontal velocity (356 m/s).

Substituting the values, we get:

\(t = 196 m / 356 m/s ≈ 0.551 seconds\)

Plugging this value into the equation for vertical motion, we find:

y = (1/2)(9.8 m/s^2)(0.551 s)^2 ≈ 94 meters.

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If the mass of a glider in an oscillatory system is doubled while assuming no damping, the period of oscillation would remain unchanged.

The period of oscillation (T) is the time taken for one complete cycle of oscillation, which is independent of the mass of the object in simple harmonic motion. The period is determined by other factors such as the stiffness of the system and the restoring force acting on the object.

In a simple harmonic oscillator, the period is given by the equation:

T = 2π * √(m/k)

Where m is the mass of the object and k is the spring constant or the stiffness of the system.

Doubling the mass of the glider would increase the numerator of the equation by a factor of 2, but it would also increase the denominator by the same factor since the spring constant remains constant. As a result, the ratio of mass to stiffness remains the same, and the square root of that ratio (which represents the period) also remains the same.

Therefore, doubling the mass of the glider would not affect the period of oscillation, and it would remain unchanged.

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Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

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The distance between the two buses is 48km.

Let us assume that the velocity of the first bus is 36 km/h and that of the second bus is 108 km/h.

To find the distance between them, we will consider that both buses move in opposite directions.

Distance travelled by bus 1 in 20 minutes = 36 km/h × 20 min ÷ 60 min/h = 12 km

Distance travelled by bus 2 in 20 minutes = 108 km/h × 20 min ÷ 60 min/h = 36 km

Total distance between them = distance travelled by bus 1 + distance travelled by bus 2= 12 km + 36 km= 48 km

Therefore, the distance between them in 20 minutes is 48 km.

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The density of the unknown sample is 0.67 g/ml.

To calculate the density, we use the formula:

Density = Mass / Volume

Mass = 38.00 g

Volume = 56.39 ml

Substituting the values into the formula:

Density = 38.00 g / 56.39 ml

Dividing the mass by the volume, we find:

Density = 0.674 g/ml

Rounding to two decimal places, the density of the unknown sample is 0.67 g/ml.

Density is a measure of how much mass is contained within a given volume. In this case, we are given the mass of the unknown sample as 38.00 g and its volume as 56.39 ml. To find the density, we divide the mass by the volume. By performing the calculation, we obtain a density of 0.674 g/ml.

When rounding the value to two decimal places, the density of the unknown sample is 0.67 g/ml. This means that for every milliliter of the sample, there is 0.67 grams of mass. Density is an important property in chemistry and materials science as it can help identify substances and determine their behavior in various applications.

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The magnitude of the acceleration of the ball  applied at the bottom of the circle is expressed as FTension-FGravity/M.

You can write it down as FC = mv2 /r.

The centripetal force in a moving object attached to a string is equal to the product of the object's mass (mg) and the string tension (T).

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Answer:

Resistance, R = 2.5 Ohms

Explanation:

Given the following data;

Voltage = 10 V

Current = 4 A

To find the resistance;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

\( V = IR\)

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Making resistance, R the subject of formula, we have;

\( R = \frac {V}{I} \)

Substituting into the equation, we have;

\( R = \frac {10}{4} \)

Resistance, R = 2.5 Ohms

Therefore, the resistance of the resistor in the electrical circuit is 2.5 Ohms.

Fiber optics assemble the use of a phenomenon known as total internal reflection. Light travels over a fiber optic cable by fine off the walls of the cable repeatedly.

Optical fibers apply total internal reflection to transmit light. It has a solid core of thick glass surrounded by less dense covering. The light ray passing through the internal core is reflected back instead of being refracted to the rarer cladding. In fiber optics, each light particle (photon) is inside the pipe with continued internal mirror-like reflection. The light beam travels down the core of the cable. The core is in the middle of the cable fiber optics and the glass shape. The light in a fiber-optic cable travels through the core (hallway) by similarly bouncing from the cladding (mirror-lined walls), a principle called total internal reflection.

So we can conclude that These wavelengths are made in fiber optics because they have the lowest attenuation of the fiber.

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More nations have gravitated toward the  model because it offers several advantages and has proven to be a successful approach in promoting economic growth and development.

Efficiency: The market-based model, characterized by free markets and competition, allows for efficient allocation of resources. It enables individuals and businesses to make decisions based on market forces, such as supply and demand, which leads to the optimal allocation of goods and services. This efficiency promotes productivity and economic growth.

Innovation and Entrepreneurship: The market-based model encourages innovation and entrepreneurship. In a competitive market, businesses are incentivized to develop new products and services to meet consumer demands. This drive for innovation fosters technological advancements, job creation, and economic dynamism.

Individual Freedom: Market-based economies prioritize individual freedom and choice. Individuals have the freedom to make decisions regarding their consumption, production, and employment. This freedom allows for personal initiative, economic mobility, and the pursuit of individual aspirations.

International Trade: Market-based economies promote international trade and globalization. By opening up to international markets, countries can benefit from the exchange of goods, services, and ideas, leading to increased economic opportunities and access to a wider range of resources.

Economic Stability: Market-based economies tend to be more resilient and adaptable to changing circumstances. The decentralized nature of markets allows for self-correction mechanisms, such as price adjustments, in response to economic shocks.

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Nations have gravitated toward the market-based model because it promotes economic growth and efficiency, encourages innovation and investment, and allows for flexibility and adaptation to global trends and demands.

More nations have gravitated toward the market-based model because it has been proven to promote economic growth and increase efficiency. The market-based model is based on the principles of supply and demand, competition, and individual choice. When countries adopt this model, it can lead to innovation, entrepreneurship, and investment, which can stimulate economic growth.

For example, countries like the United States and Germany have embraced the market-based model and have experienced significant economic development. They have seen increased productivity, job creation, and technological advancements. Additionally, the market-based model allows for flexibility and adaptation to changing global trends and demands. It encourages free trade and cooperation between nations, fostering a global economy.

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The mass of Jupitar is obtained from the calculations as 5.8 * 10^-14 Kg.

There are nine planets in the solar system and the sun lies at the enter of our solar system. This is the heliocentric model of the solar system.

Given that;

T^2 = GMr^3/4π

T = period

G = gravitational constant

r = radius

M = mass of Jupitar

Now;

1 day = 86400 seconds

1.77 days = 1.77 days *  86400 seconds/1 day

= 152928 seconds

Making M the subject of the formula;

M =4πT^2/Gr^3

M = 4 * 3.142 * (152928)^2/6.67 × 10^-11 * (422 × 10^9)^3

M = 2.9 * 10^11/5.0 * 10^24

M = 5.8 * 10^-14 Kg

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The electric field can be determined by using the formula for electric field, which is given as E= V/ where V is the potential difference and l is the length of the filament.

Therefore, the maximum electric field in the filament can be obtained by using the given information. However, no information about the potential difference or length of the filament is provided in the question.

Electric field is an important concept in the field of physics. It is defined as the force per unit charge that acts on a test charge. Electric field is denoted by the symbol E and is measured in newtons per coulomb (N/C). Electric field is a vector quantity. This means that it has both magnitude and direction. The direction of the electric field is the direction in which a positive test charge would move if it were placed in the field. The magnitude of the electric field is given by the formula E = F/q where F is the force acting on the test charge and q is the magnitude of the test charge.

Electric field can be calculated for different situations. For example, it can be calculated for a point charge, a uniform electric field, a non-uniform electric field, etc. The electric field can also be calculated for a filament.When an electric potential difference is applied across a filament, an electric field is created in the filament. The electric field is directly proportional to the potential difference and inversely proportional to the length of the filament. This means that a longer filament will have a weaker electric field than a shorter filament with the same potential difference across it.

The maximum electric field in a filament can be calculated using the formula E = V/l, where V is the potential difference and l is the length of the filament. However, this information is not provided in the question.

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Answer:

the distance the weight is lifted

Explanation:

The rocket's height when it was initially launched is 311 meters above sea level.

The rocket's height, in meters above sea level, is described by the equation h = -4.9t^2 + 286t + 311. To determine the rocket's height after 7 seconds, we substitute t = 7 into the equation and solve for h. Additionally, to find the height when the rocket was initially launched, we substitute t = 0 into the equation and calculate h.

To find the rocket's height after 7 seconds, we substitute t = 7 into the equation h = -4.9t^2 + 286t + 311:

h = -4.9(7)^2 + 286(7) + 311

h = -4.9(49) + 2002 + 311

h = -240.1 + 2002 + 311

h = 2072.9 meters

Therefore, the rocket's height after 7 seconds is 2072.9 meters above sea level.

To determine the height when the rocket was initially launched, we substitute t = 0 into the equation:

h = -4.9(0)^2 + 286(0) + 311

h = 0 + 0 + 311

h = 311 meters

Hence, the rocket's height when it was initially launched is 311 meters above sea level.

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As per the given question, the swimmer will land 88.88m far downstream

Total distance covered = 1.8m/s

Length = 200m

The current of the river = 0.80 m/s

It is referred to downstream if a boar or swimmer moves in the same direction as the stream. When a boat's or a swimmer's speed is mentioned, it typically refers to the speed in still water.

Calculating the time taken to cross the river -

= Total length covered / total distance covered

= 200/ 1.8

= 111.1

Calculating the total drift of the swimmer -

= Total current of the river x time taken

= 0.80 x 111.1

= 88.88

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Explanation:

the answerer is visible

Genetic material is known to absorb UV light. Given what we know, we can confirm that genetic material is not known to absorb light originating from an infrared or microwave radio source.

Genetic material is the hereditary substance in the cell. It carries all information specific to an organism. It is known as DNA (deoxyribonucleic acid) or RNA (ribonucleic acid)

UV light is electromagnetic radiation, and the primary source of UV light that we are exposed to is the sun.

Therefore, given that the only form of light listed that genetic material is known to absorb is that of Ultraviolet or UV light, we can confirm that the answer to the question proposed is infrared and microwave radio light.

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The properties of mechanical waves are : ( C and D )

Mechanical waves are a category of waves which cannot transmit energy through a vacuum, i.e. they require a medium to transmit their energy from one end to another. An example of a mechanical wave is : sound wave. Mechanical waves are grouped into transverse, longitudinal and surface waves.

Hence we can conclude that The properties of mechanical waves are : The three categories of mechanical waves are transverse, longitudinal,surface waves and Waves transport energy,but not matter

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Answer:

11×10⁵ J

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 1000 kg

Height (h) = 110 m

Acceleration due to gravity (g) = 10 m/s²

Potential energy (PE) =?

The potential energy of the roller coaster can be obtained as follow:

PE = mgh

PE = 1000 × 10 × 110

PE = 11×10⁵ J

Therefore, potential energy of the roller coaster is 11×10⁵ J

(1) The moment of 20N about the wheel is 30 Nm. (2) The distance of the wheel to the center of mass of the wheelbarrow is 1.2m.

1. The moment of 20N about the wheel can be calculated using the formula:

Moment = Force x Distance

Moment = 20N x 1.5m

Moment = 30 Nm

2. To find the distance of the wheel to the center of mass of the wheelbarrow, we can use the principle of moments, which states that the sum of the clockwise moments about a point is equal to the sum of the anticlockwise moments about the same point. Let the distance from the wheel to the center of mass be x.

Clockwise moment = Weight x Distance

Clockwise moment = 80N x (1.5m - x)

Anticlockwise moment = Upforce x Distance

Anticlockwise moment = 20N x x

Using the principle of moments:

80N x (1.5m - x) = 20N x x

Simplifying and solving for x:

120m = 100x

x = 1.2m

Therefore, the distance of the wheel to the center of mass of the wheelbarrow is 1.2m.

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The resultant of the forces is 29 N. Option D

The resultant force is the force that acts in a given direction. Now we have two forces as enumerated in the question.

Thus;

Resultant = √(10)^2 + (20)^2 - [2 * 10 * 20 * cos (60 - 30))

Resultant = 29 N

Thus, the resultant of the forces is 29 N.

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Missing parts;

Two forces of magnitude 10N and 20N act on a body in directions making angles 30° and 60° respectively with x-axis what is the resultant force

A.17N

B. 19N

C. 23N

D. 29N

E. 37N​

The compression dd of the spring with the minimum spring compression and force constant calculated in part c depends on the specifics of the problem and cannot be determined without further information.

The compression of a spring is defined as the amount of deformation that a spring undergoes when a force is applied to it. The force constant of a spring is the amount of force required to stretch or compress the spring by a certain amount. Therefore, the compression dd of a spring depends on the applied force and the force constant of the spring. The minimum spring compression occurs when the force applied is minimum or zero, in which case the compression is also zero. However, without knowing the specifics of the problem, such as the mass of the bullet or the initial velocity, we cannot determine the exact value of the compression dd. Therefore, the answer to this question is that it depends on the specifics of the problem and cannot be determined without further information.

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Answer:it c

Explanation: I took the test

The average velocity is 3.05

Average Velocity: displacement/Time

     = \(x_{2}\)\(x_{2} -x_{1}/t_{2}-t_{1}\)

      = 25- 15/100

       =10/100

       = 0.1 cm/s

       =0.1x\(10^{-2}\)

   v  = \(1*10^{-3}\).

To calculate the displacement, draw a vector from the start point to the endpoint and solve for the length of that line. If the start and end positions are the same as a 5km circular route, the displacement is 0. Velocity defines the direction of movement of an object or object. Velocity is primarily a scalar quantity. Velocity is basically a vector quantity. Rate of change of distance. Velocity is the percentage of time an object moves along a path, and Velocity is the speed and direction of an object's movement.

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The spectrum observed from the Sun (or any star) would exhibit an absorption spectrum. This is because the outer gaseous atmosphere of the star absorbs specific wavelengths of light, resulting in dark absorption lines in the spectrum.

In the cooler, lower-density outer atmosphere, where white light from the star travels, some atoms or molecules in the atmosphere absorb photons with particular energy. In the spectrum, these absorptions show up as black lines at specific wavelengths. The specific set of absorption lines that each element or molecule generates results in a distinctive pattern that can be used to identify the elements that are present in the star's atmosphere.

The absorption spectrum offers insightful data on the chemical make-up and physical characteristics of the star. Astronomers can ascertain the elements present, their abundances, and other characteristics like the temperature, pressure, and velocity of the star's atmosphere by examining the absorption lines.

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The horizontal component of the plane's velocity is 85.96 mph and the vertical component of the plane's velocity is 487.5 mph.

The component form of the velocity of the airplane includes both horizontal and vertical velocity and it is calculated as follows;

Vx = V cosθ

Vy = V sinθ

where;

θ = 170 - 90 = 80⁰

Vx = 495 mph (cos 80)

Vx = 85.96 mph

Vy = 495 mph (sin 80)

Vy = 487.5 mph

Thus, the horizontal component of the plane's velocity is 85.96 mph and the vertical component of the plane's velocity is 487.5 mph.

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