Please identify what is the force indicated at the “X” and what would happen if “X” is greater than the pushing force in the diagram? Make sure to include (Quote and define the force at “X”)

A herd of deer would be a population (in this case, the individual is the deer).

A population is a group of individuals of the same species living in a particular geographic region.

Moreover, a community is a group of populations living together in a particular ecosystem.

In conclusion, a herd of deer would be a population (in this case, the individual is the deer).

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Answer:

O scientific method

Explanation:

Answer:

8.22m

Explanation:

As interpreted from this problem, the angle of launch is 90 degrees as it is thrown straight up. Given an angle launch of 90°, upward initial velocity of 12.7m/s, and initial height of 0m. A much simpler equation can be used to find the maximum height.

\(h_{max} = h_ {0} + \frac{{v_0}^{2} }{2g}\)

this means that the max height is equal to the initial height plus the initial velocity squared divided by 2 times the acceleration of earth's gravity(≈9.8m/s^2 or 10m/s^2 depending on how you fix it).

when substituted into the equation, you should get.

(9.8m/s^2)

hmax = 0 + ((12.7)^2)/(2*9.8)

hmax = 161.29/19.6 ≈ 8.22

hmax = 8.22m

The velocity of the laundry bag before collision is 4.22 m/s. The collision of two objects in the absence of an external force does not affect the momentum of the two bodies.

Collision is the sudden, forceful coming together of two objects in direct contact with each other, such as, two billiard balls, a golf club and a ball, a hammer and a nail head, two cars when being coupled together.

In order to solve this problem, the principle of conservation of momentum can be applied. This tells us that the momentum of a system is preserved before and after a collision.

Both the movements i.e., bag and cart are positive, since they both move in the same direction. Now, the momentum of objects before the collision is equal to the momentum of objects after the collision.

This can be represented as:

m₁ × v₁ = m₂ × v₂

Here, m₁ = mass of the laundry bag = 22kg

v₁ = velocity of the laundry bag

m₂ = sum of the mass of laundry bag and cart = 9kg

v₂ = velocity of the moving cart = 3m/s

m₁ × v₁ = m₂ × v₂

22kg × v₁ = (22+9)kg × 3m/s

v₁ = (31kg × 3m/s)/ 22kg

v₁ = 93/22

v₁ = 4.22m/s.

Therefore, the velocity of the laundry bag before collision is 4.22m/s.

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Newton's second law allows us to find that the correct answer is:

Newton's second law states that the net force and is propositional to the mass and acceleration of the body

For these problems it is essential to set a reference system, with respect to which to carry out the measurements, in this case we set a coordinate system with the x axis parallel to the plane and positive in the direction of movement and the y axis perpendicular to the plane.

In the attachment we can see a free-body diagram of the problem, let's work each axis separately

x-axis

         Wₓ -fr = m a

y-axis

         N - \(W_y\) = 0

         N = \(W_y\)

Where Wₓ and W_y are the components of the weight, fr the friction force that opposes the movement, m the mass and the acceleration of the body

let's use trigonometry to find the components of the weight

        cos θ = \(\frac{W_y}{W}\)

        sin θ = \(\frac{W_x}{W}\)

         \(W_y\) = W cos θ

         Wₓ = W sin θ

we substitute

          N = mg cos θ

From this equation we can see that the normal is less than the weight of the body.

In conclusion using Newton's second law we find that the correct answer is:

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Answer:

the kinetic energy of an object is the energy that it possesses due to its motion.

Explanation:

Answer:

scientific theory”?A. a best guess explanation. B. a rigorously tested explanation. C. an opinion of what should happen. D. a mathematical relationship

Answer:

The car is speeding up in a negative direction.

Explanation:

Answer:

12.01 kΩ

Explanation:

The gain of the inverting amplifier can be calculated using the formula:

Av = -Rf / R1

where R1 is the value of the input resistor and Rf is the value of the feedback resistor.

To solve for Rf, we can rearrange the formula as:

Rf = -Av x R1

Substituting the given values, we get:

Av = -3.43

R1 = 3.5 kΩ

Rf = -Av x R1

Rf = -(-3.43) x 3.5 kΩ

Rf = 12.005 kΩ

Rounding to 2 decimal places, the value of Rf required to provide Av = -3.43 V/V is approximately 12.01 kΩ.

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Quantities are equal to the sum of the individual values for both the voltage and current in a serial circuit.

The obstruction to current flow in an electrical circuit is measured by resistance. The Greek letter omega () represents resistance, which is measured in ohms.

When two or more resistances are connected between two sites and each has a different current direction, the resistances are said to be connected in parallel. In such circuits, the branches cross at a common point, splitting the current and recombining it.

The voltage on the resistances will differ if they are linked in parallel, but both resistances will still produce the same amount of current.

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Answer:Energy cannot be created or destroyed. It can be stored, or it can be transferred i.e. from a hot object to a cool object by conduction, convection or radiation.

Explanation:

Answer:

3.36 Joules

Explanation:

Work done= Force × distance

F=4.2 N

distance= 0.8 m

work done= 4.2 × 0.8

work done= 3.36 Joules

Answer:

Mechanical waves are A. Longitudinal and C. Transverse.

Explanation:

I hope this helps you.^_^

The correct answer is (c) only when the velocity is constant.

Average velocity is defined as the displacement of an object over a given time interval divided by the time interval. It gives an overall picture of the motion of an object over a certain period of time.

On the other hand, instantaneous velocity is the velocity of an object at a specific point in time. It is the limit of the average velocity as the time interval approaches zero.

When the velocity of an object is constant, the instantaneous velocity at any point in time is always equal to the average velocity over any time interval. This is because the displacement of the object over any time interval is the same, so the average velocity remains constant over time. Therefore, the instantaneous velocity is also equal to the average velocity.

However, when the velocity of an object is changing, the instantaneous velocity at any point in time may not be equal to the average velocity over any time interval. In fact, the instantaneous velocity at any point in time may be significantly different from the average velocity over a given time interval, especially if the acceleration is changing rapidly.

Therefore, we can only be certain that the average velocity of an object is always equal to its instantaneous velocity when the velocity is constant.

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Answer: B

Explanation:

Displacement is a vector quantity. it is the distance covered in a specific direction.

Whereas, Velocity = displacement/time

Make displacement the subject of formula

Displacement = velocity × time

From the graph, velocity is constant which is equal to 1 m/s

Displacement in the last two seconds will be velocity multiply by 2. Since time = 2s. Therefore,

Displacement = 1 × 2 = 2 m

So, the particle displacement in the last two seconds will be 2 metres

A  minimum coating thickness of 10.35 cm would be required to render an aircraft invisible to a radar operating at 725 MHz.

In order to determine the minimum thickness of coating required to render an aircraft invisible to a radar operating at 725 MHz, we first need to know the wavelength of the radar signal. The wavelength can be calculated using the formula:

wavelength = speed of light / frequency

The speed of light is approximately 3 x 10^8 meters per second. Converting the frequency of 725 MHz to meters, we get:

wavelength = 3 x 10^8 / (725 x 10^6) = 0.4138 meters

Now, in order to render the aircraft invisible to this radar band, we need the coating thickness to be at least one-quarter of the wavelength. Therefore, the minimum thickness of the coating required would be:

minimum coating thickness = 0.4138 meters / 4 = 0.1035 meters

Converting the thickness to centimeters:

minimum coating thickness = 10.35 cm

Therefore, a minimum coating thickness of 10.35 cm would be required to render an aircraft invisible to a radar operating at 725 MHz.

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Explanation:

Assuming the 10 m distance is the vertical displacement, the work done by both people is the same.

Work = force × distance

W = (250 N) (10 m)

W = 2500 J

The power of the first person is:

Power = work / time

P = 2500 J / 120 s

P = 20.83 W

The power of the second person is:

P = 2500 J / 60 s

P = 41.67 W

Answer:

well sound waves interact with our ears and light interacts with our vision

Explanation:

Answer:

Hearing employs air or water waves, whereas sight uses the electromagnetic spectrum. The electrical and chemical neural impulses are sent through the human auditory nerve to the brain once the mechanical energy of the sound waveform is converted into neurological stimulation.

Answer:

The reading will be the same.

Explanation:

Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.

Giving me the brainest will be helpful.

The reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.

A weighing scale known as a balance is a device used to quantify weight or mass. The classic scale is made up of two plates or bowls that are suspended at equal distances from a fulcrum.

A person with a mass of 70kg is standing on a scale in an elevator suddenly the cable snaps, The reading on the scale during free-fall will be the same as the initial elevator condition.

Hence the reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.

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\(Work=Force \: × \: displacement \\ => W=Fs \\ \\ Given, \\ Force=25 \: N \\ Displacement=2m \\ \\ so \: work = 25 \: N \: \times 2m \\ = > work = 25kgm {s}^{ - 2} \times 2m \\ = > work = 50kg {m}^{2} {s}^{ - 2} \\ = > work = 50J\)

This is the answer.

Hope it helps!!

A weightlifter must exert 25 Newtons of force to lift a set of barbells 2 meters off the ground, the weightlifter did 50 Nm of work on the barbells when he lifted them. The correct option is A.

To calculate the work done by the weightlifter in lifting the barbells, we can use the formula:

Work = Force × Distance

Here, it is given that:

Force = 25 Newtons

Distance = 2 meters

Substituting the values into the formula:

Work = 25 N × 2 m

Calculating the multiplication:

Work = 50 Nm (Newton-meters)

Thus, the weightlifter did 50 Nm of work on the barbells when he lifted them, the correct answer is A. 50 Nm.

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If the frequency is doubled then length L is approximately 0.4375 m and when n is 3, the length of the string is approximately 0.33 m.

We can use the wave equation:

v = λf

where:

v is the wave speed,

λ is the wavelength,

and f is the frequency.

(a) If the frequency is doubled, the new frequency is 2 * 200 Hz = 400 Hz.

We can use the wave equation to find the new wavelength (λ'):

350 m/s = λ' * 400 Hz

Rearranging the equation:

λ' = 350 m/s / 400 Hz

λ' = 0.875 m

So, the new wavelength is 0.875 m.

To find the new length L,

We can use the equation for the fundamental frequency of a string:

λ = 2L / n

Substituting the new wavelength and the given n = 1:

0.875 m = 2L / 1

Solving for L:

L = 0.875 m / 2

L = 0.4375 m

Therefore, if the frequency is doubled, the length L is approximately 0.4375 m.

(b) For n = 3, we can use the same equation:

λ = 2L / n

Substituting the given wavelength and n = 3:

0.44 m = 2L / 3

Solving for L:

L = (0.44 m * 3) / 2

L = 0.66 m / 2

L = 0.33 m

Therefore, when n = 3, the length of the string is approximately 0.33 m.

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Metals - Conductivity and weight can be tailored, Ceramics - Good electrical and thermal insulators, Composites - The level of conductivity or resistivity can be controlled, Polymers - Poor electrical and thermal conductivity, Semiconductors - low compressive strength.

Metals: Metals are known for their good electrical and thermal conductivity. They are excellent conductors of electricity and heat, allowing for efficient transfer of these forms of energy.
Ceramics: Ceramics, on the other hand, are good electrical and thermal insulators. They possess high resistivity to the flow of electricity and heat, making them suitable for applications where insulation is required.
Composites: Composites are materials that consist of two or more different constituents, typically combining the properties of both. The conductivity and weight of composites can be tailored based on the specific composition.
Polymers: Polymers are characterized by their low conductivity, both electrical and thermal. They are poor electrical and thermal conductors.
Semiconductors: Semiconductors possess unique properties where their electrical conductivity can be controlled. They have an intermediate level of conductivity between conductors (metals) and insulators (ceramics).

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Answer:  condensation

Explanation:    

i hope it helped

Answer:

9N

Explanation:

F = ma

F = 150kg × (15 - 0)m/s / 250s

F = 9N

Answer:

the work done can be positive or negative  

Explanation:

The wave characteristic that is the same for both waves is wavelength.

Thus, Equal frequencies are shared by two waves moving through the same region in the same direction.

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Answer:

Newtows first law of motion

The amount of time required to generate energy on the exercise bike is almost impractical, and other sources of energy should be considered.

Let's start with calculating the amount of energy that the AC unit consumes in a day.

Power = Voltage x Current

The power consumption of the AC unit is 3500 Watts.

Time = Power / Voltage x Current (Ohm's Law)

Assuming that your home uses 120 volts AC, the amount of current needed is as follows:

Current = Power / Voltage

= 3500 W / 120 V

= 29.16 A.

The time required to operate the AC unit for four hours per day is:

Time = Power / Voltage x Current

= 3500 W x 4 hr / 120 V x 29.16 A

= 12 hours.

Now, if you can generate a consistent power of 300 watts on the exercise bike, the amount of time you'd need to work out each day to keep the AC unit running for four hours would be:

Time required for the exercise bike = Time for AC Unit x (Power required by AC unit / Power generated by exercise bike)

Time required for the exercise bike = 4 hours x (3500 W / 300 W)

Time required for the exercise bike = 46.7 hours.

Using an exercise bike to generate electricity is a great idea, but it would be difficult to generate enough energy to keep large home appliances running, such as a central AC unit.

In this case, the amount of time required to generate energy on the exercise bike is almost impractical, and other sources of energy should be considered.

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Answer:

0 N

Explanation:

suppose, you push a box with 5 N, and another person pushes the box on the opposite side of the box with 5 N, the net force (resultant ) is 0 N, the box will not move if it wasn't moving

hope this helps