Look around the room you are in. Name
something in the space that would be a
conductor. How about an insulator?

Answer:

Projectile motion is the motion of an object thrown or projected into the air, subject to only the acceleration of gravity. The object is called a projectile, and its path is called its trajectory. The motion of falling objects, as covered in Problem-Solving Basics for One-Dimensional Kinematics, is a simple one-dimensional type of projectile motion in which there is no horizontal movement. In this section, we consider two-dimensional projectile motion, such as that of a football or other object for which air resistance is negligible.

Explanation:

B the dropped ball

Answer:

A model of the solar system with the sun in the middle

Explanation:

Carbohydrates are biomolecules made up of monomers known as monosaccharides, which are simple sugars.

Monosaccharides are the building blocks of carbohydrates, and they can be linked together through a process known as dehydration synthesis to form more complex carbohydrates.

The most common monosaccharides that make up carbohydrates are glucose, fructose, and galactose. Glucose is the primary energy source for most living organisms and is used in cellular respiration to produce ATP, the molecule that fuels most metabolic processes in cells. Fructose is found in many fruits and is commonly used as a sweetener in processed foods. Galactose is less common and is typically found in milk and dairy products.

Monosaccharides can also be combined to form disaccharides, which are composed of two monosaccharides linked together. Examples of disaccharides include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).

Overall, the monomers that make up carbohydrates are simple sugars, which can be combined to form more complex carbohydrates with a variety of functions in living organisms.

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Answer:

yes it will

Explanation:

As the net torque on the see-saw  is not equal to zero, the see-saw in the given diagram will move.

The force that can cause an object to rotate along an axis is measured as torque. In linear kinematics, force is what drives an object's acceleration. Similar to this, an angular acceleration is brought on by torque.

As a result, torque can be thought of as the rotational counterpart to force.  Torque is referred to using a variety of terms, including moment and moment of force. The moment arm or lever arm is the measurement of the separation between the point of application of force and the axis of rotation.

The net torque on the see-saw = 3 N × 1.20m - 8 N × 0.50 m

= - 0.4 N-m.

As the net torque on the see-saw  is not equal to zero,  the see-saw move will move.

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Answer:a number without a decimal are generally not significant. Isotopes are atoms of same element which have the same atomic number but different number of neutrons. Isotopes of elements are represented in the following way: In an atom, the number of protons is equal to its atomic number.. An atom of an element is neutral in nature so atom contains the same number of protons and electrons.

Explanation:

Maximum heigh: 1.496 m

(This number is not exacte I truncated it)

Explanation:

Data:

mass : m = 0.003 kg

spring constant : k = 220 N/m

amount of compression: x = 2 cm = 0.02 m

heigh : h = ?

accelaratiom due to gravity : g = 9.8ms^-2

Potential Energy : PE = ?

Since you'll be converting the PE to KE, you'll use 2 formulas.

Formulas:

Solution:

The wavelength of the second line in the Balmer series is 304 nm and fourth line is 1093.7 nm.

The Balmer series in the hydrogen spectrum has spectral lines that are in the visible spectrum.

The wavelength is determined using the Balmer-Rydberg equation.

Wavelength for any two selected lines from the Balmer series of the spectra of hydrogen,

1 / λ = R (1/ n₁² - 1/ n₂²)

Where,

λ is the wavelength,

R is the Rydberg constant (1.0974 x 10⁷ m⁻¹),

n₁ and n₂ are integers where n₂ > n₁.

First, let us choose n₁ = 2, which is the second energy level and we will calculate the wavelength of the second line.

n₂ = 3λ = R(1/2² - 1/3²)

λ = R (4/36 - 1/9)

λ = R (1/36) = (1.0974 x 10⁷ m⁻¹) / 36

λ = 3.04 x 10⁻⁷ m = 304 nm

The wavelength of the second line in the Balmer series is 304 nm.

Now, we will calculate the wavelength of the fourth line.

n₂ = 5n₁ = 2λ = R (1/2² - 1/5²)

λ = R (4/100 - 1/25)

λ = R (3/100) = (1.0974 x 10⁷ m⁻¹) / 100 x 3

λ = 1.0937 x 10⁻⁷ m = 1093.7 nm

The wavelength of the fourth line in the Balmer series is 1093.7 nm.

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Answer: harvest moon

During the harvest season, they would worship the full moon, giving thanks for a plentiful harvest. The women in each family would prepare a table full of newly harvested rice and fruit, in an ancient tradition called 'charye. ' The origins of Chuseok can be traced back to this custom.

ceremonies

hope this helps

The horizontal component of the wall force is 25 N.

we need to analyze the forces acting on the board. The board is in equilibrium, meaning the net force and net torque are zero. The applied force (F_app) keeps the board horizontal,

while the weight (W) of the board (50 N) acts at its center of mass (1 m from the wall). The wall exerts a force (F_wall) that has both horizontal (F_horizontal) and vertical (F_vertical) components.

We can use the principle of torque balance to solve for the horizontal component of the wall force. Taking the torque about the point where the board contacts the wall:

Torque = Force × Distance

0 = F_app × 2m - W × 1m

F_app = W / 2 = 50 N / 2 = 25 N

As the board is horizontal, the vertical component of the wall force (F_vertical) balances the weight:

F_vertical = W = 50 N

Finally, the board is in equilibrium, so the applied force must be equal to the horizontal component of the wall force:

F_horizontal = F_app = 25 N

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Answer:

\(-9.06\:\mathrm{m/s^2}\)

Explanation:

We can use the following kinematics equation to solve for acceleration:

\(v_f=v_f+at\).

Solving for \(a\):

\(45=93+5.3a,\\-48=5.3a,\\a\approx \boxed{-9.06\mathrm{m/s^2}}\)

*Note: Since acceleration is a vector quantity, it has both magnitude and direction. The negative sign implies that the acceleration is in the opposite direction of the racing dragster's movement.

Answer:

9:36 and how far it will travel is 26 minutes

Answer:

2.29m

Explanation:

Given parameters:

Mass of the coconut  = 1.4kg

Final velocity  = 6.7m/s

Initial velocity  = 0m/s

Unknown:

Height of the coconut initially  = ?

Solution:

To solve this problem, we use one of the kinematics equation. The one given below is the best one to use.

   V²  = U²  + 2gH

V is the final velocity

U is the initial velocity

g is the acceleration due to gravity

H is the height

 So;

            6.7²  = 0²   + (2 x 9.8 x h)

           44.89  = 19.6h

                   h  = 2.29m

In the experiment, absorbance was measured using a spectrophotometer. A spectrophotometer is a piece of equipment used in science to gauge how much light a sample in a solution absorbs.

The basic principle of a spectrophotometer is to measure the intensity of light before and after it passes through a sample. The difference in intensity is used to determine the amount of light absorbed by the sample, which in turn can be used to calculate the concentration of the substance in the sample.

There are two main types of spectrophotometers: single-beam and double-beam. In a single-beam spectrophotometer, the sample and reference cuvettes are alternately placed in the path of a single beam of light. In a double-beam spectrophotometer, the sample and reference cuvettes are placed in the path of two separate beams of light, which are then compared to each other. Spectrophotometers are widely used in analytical chemistry, biochemistry, and other scientific fields to analyze the composition of a wide range of samples, including biological fluids, environmental samples, and industrial materials. They are also used in quality control processes for pharmaceuticals, food products, and other consumer goods.

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Answer:

257.5 N

Explanation:

Answer:

Just because they can run doesn't mean they are fast

Explanation:

you could take a day to run across a football field, or you can take 5 minutes, which is faster?

You're friend in this equation has little to no braincells so they would have trouble seeing that running the length of a football field in five minutes is faster than a day, however, if they also said they did it in less than five minutes then it would mean your friend is fast

People with low cardiovascular fitness are more prone to heart disease than those whose cardiovascular fitness is high because those with lower cardiovascular fitness will have weaker heart muscles. Thus, the correct option is B.

Cardiovascular fitness may be defined as the accommodation of the cardiovascular system to furnish oxygenated blood to functioning muscles. It includes the muscles of the heart, lungs, blood vessels, etc.

People with low cardiovascular fitness have lower furnishing of oxygenated blood to various organs like the heart, lungs, etc. Due to this, the muscles of specific body parts or organs may undergo a state of inactivity suddenly for a fraction of seconds.

This activity constantly leads to various heart-related diseases directly or indirectly in the life of an individual.

Therefore, the correct option for this question is B.

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The thickness of the sheet of mass45.5 g and density 7.25 g/cm³ is 2.5×10⁻³ cm.

Thickness is the measure of the smallest dimension of a solid figure.

To calculate the thickness of the sheet of tin metal, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the thickness of the sheet is 2.5×10⁻³ cm.

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The velocity of the projectile at any time t is v(t) = \(4(7 - t)^3\), the acceleration of the projectile at any time t is a(t) = \(12(7 - t)^2\) and the projectile traveled 2401 meters into the bale of paper.

To find the velocity v of the projectile at any time t, we need to take the derivative of the position function s(t) with respect to time:

v(t) = s'(t)

s(t) = 2401 - (7 - t)^4, we can find v(t) by differentiating:

v(t) = d(s(t))/dt

= d(2401 - \((7 - t)^4)/\)dt

= \(-4(7 - t)^3 * (-1)\\= 4(7 - t)^3\)

To find the velocity of the projectile at t = 1, we can substitute t = 1 into the velocity function:

\(v(1) = 4(7 - 1)^3\\= 4(6)^3\)

= 4(216)

= 864 m/s

The acceleration a of the projectile at any time t is the derivative of the velocity function v(t):

a(t) = v'(t)

Differentiating v(t) =\(4(7 - t)^3\) with respect to t:

a(t) = d(v(t))/dt

\(= d(4(7 - t)^3)/dt\\= -3 * 4(7 - t)^2 * (-1)\\= 12(7 - t)^2\)

To find the acceleration of the projectile at t = 1, we can substitute t = 1 into the acceleration function:

\(a(1) = 12(7 - 1)^2\\= 12(6)^2\)

= 12(36)

\(= 432 m/s^2\)

To find how far into the bale of paper the projectile traveled, we need to evaluate the position function s(t) at t = 7:

s(7) = 2401 -\((7 - 7)^4\)

= 2401 - 0

= 2401 m

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Answer:

Explanation:

For both the waveform and spectrogram: Time, being the independent variable, is on the x-axis on the graph. Intensity, however, is the dependent variable and goes on the y-axis

Frequency can be found as:
- the lines on the waveform through the interval of time over 1 second

- the inverse of time (f = 1/t) on the spectrogram

Answer:

Answer is A

Speed = Wavelength × Frequency

Explanation:

Googled it

Answer:

Answer: Potential difference is the difference of electrical potential between two points.

How it affects the current: The current is directly proportional to electric potential difference and inversely proportional to resistance.

Answer:

True

Explanation:

because if your body image is negative your holistic health is will affect

Answer:

.................... protons :)

Answer:

protons

The two subatomic particles that have the same mass are protons and neutrons.

angle to the shore should a person navigate a boat, which is maintaining a constant speed of 16 km/h, in order to reach a point directly opposite is 75.5 degrees.

Since the stream is flowing parallel alongside the shore, it takes the vector form of  v {stream} = [0,4]

the boat velocity is perpendicular to the stream, it's takes the vector form of  v{boat} = [-16,0]

The resultant velocity of the boat is the sum of the velocity of the boat and stream, thus it takes the form

v{total} =  [-16,0] +  [0,4]

           = [ -16,4]

the cosine of angle to the shore,

                  cos {theta} = v{total} . v {stream} / ||v{total} || x ||v {stream}||

                                     =  [ -16,4] . [0,4] / (16x4)

                                     = 16/64

                                     = 0.25

                       angle = 75.7 degrees.

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The molar mass of the gas with specified density and pressure at certain temperature is calculated to be 64.02 mol⁻¹.

Given,

ρ = 2.09 g/l

T = 100° C

P = 1 atm

Molar mass (Mm) can be written as the ratio of given mass of the gas (m) and number of moles (n) it contains.

Mm = m / n ---(1)

Density can be written as the ratio of mass and volume.

ρ = m / V ---(2)

Placing (1) and (2) in ideal gas law equation, we have

P V = n R T

"P V = m / Mm × R T"

Making Mm as subject, we have,

Mm = m / V × R T/P

Convert the temperature of the gas from degrees Celsius to Kelvin then substituting the values,

Mm = m / V × R T/P

Mm = 2.09 g/l × 0.0821 atm L/mol K× (100 + 273.15)K × 1/ 1 atm = 64.02 mol⁻¹

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Answer:

1.33m/s²

Explanation:

Given parameters:

Initial velocity  = 5m/s

Final velocity  = 25m/s

Time taken  = 15seconds

Unknown:

Acceleration  = ?

Solution:

Acceleration is the rate of change of velocity with time.

  Acceleration  = \(\frac{v - u}{t}\)  

  v is the final velocity

  u is the initial velocity

  t is the time taken

 So;

    Acceleration  = \(\frac{25 - 5}{15}\)    = 1.33m/s²

Solving the problem mathematically,

Initial velocity of the ball 12m/s

Final velocity 0m/s

Travel time 36s

Assuming the velocity follows a straight line, then the slope of the curve is equal to the rate of change of velocity (acceleration)

ie taninv(dv/dt) since it is linear taninv(12/33)= 0.33 m/s^2 deceleration.

If in case the velocity doesn’t follow the linear path acceleration= d(velocity profile)/dt. ie the first order differentiation of velocity is the acceleration.