What is the biggest animal on land?

Answer:

The average speed of her is 2 m/s.

The acceleration for the entire trip is 0.2 m/s²

Explanation:

Given that,

katie measured the distance her friend morgan ran on a straight track every 2s.

According to given chart,

We need to calculate the average speed

Using formula of average speed

\(v_{avg}=\dfrac{D}{T}\)

Where, D = total distance

T = total time

Put the value into the formula

\(v_{avg}=\dfrac{20}{10}\)

\(v_{avg}=2\ m/s\)

We need to calculate the acceleration for the entire trip

Using equation of motion

\(v=u+at\)

\(2=0+a\times10\)

\(a=\dfrac{2}{10}\)

\(a=0.2\ m/s^2\)

Hence, The average speed of her is 2 m/s.

The acceleration for the entire trip is 0.2 m/s²

Answer:

The thickness of sponge is the dependent variable in this investigation

Explanation:

This is because in the investigation, the amount of mass is the property to be varied while the thickness of the sponge is the property to be checked.

The thickness of the sponge is dependent on the amount of mass placed on it, so the thickness of the sponge depends on the mass.

Thus, the thickness of the sponge is the dependent variable in this instance while the amount of mass is the independent variable in this investigation.

looking at the graph,

1) Displacement includes direction

Displacement from 8s to 16s = 15 - 6 = 9

Displacement fbetween 16s and 24s = 0 - 15 = - 15

Displacemet between 8s and 24s = 9 - 15

Displacemet between 8s and 24s = - 6m

2)

Distance does not include direction

from 8s to 16s,

distance travelled = 15 - 6 = 9 m

From 16s to 24s,

distance travelled = 15 - 0 = 15

Total distance between 8s and 24s = 9 + 15

Total distance between 8s and 24s = 24 m

Answer:

C. It provides evidence of light acting as a wave.

Explanation:

Took test

Destructive interference occurs when the amplitude of the displacements when the crest of one wave meets the trough of another wave is equal to the difference in the separate magnitudes, hence option C is correct.

Any position along the medium where the two conflicting waves have a displacement in the opposite direction will experience destructive interference.

When the phase difference between the waves is an even multiple of (180°), constructive interference happens. Example: When two speakers are placed side by side and their distance from the viewer is the same, we can experience constructive interference.

Therefore, destructive interference of light provides evidence of light acting as a wave, hence option C is correct.

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Answer:

Explanation:

c

Answer:

syk

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The Planet on its axis often contributes to the deflection created by the Coriolis force.

Moving objects in a reference point that rotates relative to an inertial frame are affected by an imagined or inertial force known as the Coriolis force. the force acting left of a object . an object in a frame of reference rotating in a clockwise direction.

Rotation: Rotation, often known as spin, is the cyclical motion of an object about a fundamental axis.

A two-dimensional rotating object can only have one possible central axis.

Such things have an axis that may rotate either counterclockwise or clockwise.

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Answer:

D. All electric field lines are parallel in a uniform electric field

Notice that 40.35 is 5 times the half-life of 8.07 days. So in this time, the starting amount x of the sample was halved 5 times until 25 g of it were left, meaning

x/2⁵ = 25 g

Solve for x :

x = 2⁵ • (25 g) = 800 g

Answer:

To say we have a 12.0-V battery implies that its terminals have a 12.0-V likely contrast. At the point when such a battery moves charge, it puts the charge through an expected distinction of 12.0 V, and the charge is given an adjustment of potential energy equivalent to Δ U = q Δ V .

six cells

There are six cells to a 12 volt lead corrosive battery. A battery cell's greatest capacity to convey current (amps).

A 6 cell lithium particle pack has an ostensible voltage of 21.6V to 22.2V and a most extreme charge voltage of 25.2 volts

Explanation:

Answer:

Aluminium

Explanation:

The heat capacity for Aluminium is greatest and so it retains heat longer hence its the best conductor of heat.

the position that has least kinetic energy is option D

Answer:

momentum.

Explanation:

This is because mass is directly proportional to momentum.

The velocity in meters per second of the object at t = 2 seconds is 2.5 m/s

Velocity is simply defined as the rate of change of displacement with time. Mathematically, it can be expressed as:

Velocity = displacement / time

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

Velocity = displacement / time

Velocity = 5 / 2

Velocity = 2.5 m/s

Thus, the velocity is 2.5 m/s

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Answer:

4.3

Explanation:

because 6.8 subtracted by 2.5 is 4.3

Unintentional injuries caused by accidents are the number one killer of children and teenagers.

What causes the majority of adolescent deaths?

A little over half of all adolescent fatalities are caused by accidents. Over one-third of all fatal accidents fall under the category of motor vehicle fatalities, which is the top cause of death for teens. Non-Hispanic black male teens have the highest death rate.

The top causes of mortality for children under 5 years old continue to be congenital anomalies, pre-term birth complications, birth asphyxia, and other infectious diseases like pneumonia, diarrhea, and malaria. According to a recent study, homicide is the top cause of death for children in the United States, and the total rate has grown by 4.3% annually on average.

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Answer: True

91% is the voltage applied to the load (secondary voltage) and the efficiency.

To determine the voltage applied to the load (secondary voltage) and the efficiency, we can use the equivalent circuit parameters of the transformer and the given load impedance.

Given parameters:

Transformer rating: 20 kVA

Transformer turns ratio: 800/230 [V]

R1 = R2 = 10 Ω

X1 = X2 = 50 Ω

Rc = 100 Ω

Xm = 20 kΩ

Load impedance: ZL = 2+j0.6 Ω

First, we can calculate the equivalent impedance seen by the primary side of the transformer using the turns ratio:

Zeq = (ZL * (N2/N1)^2) = (2+j0.6 * (230/800)^2) = 0.79+j0.237 Ω

Next, we can calculate the primary current (I1) using the formula:

I1 = V1 / (R1 + jX1 + Zeq) = 800 / (10+j50 + 0.79+j0.237) = 8.29 - j2.35 A

Now, we can calculate the secondary voltage (V2) using the turns ratio:

V2 = V1 * (N2/N1) = 800 * (230/800) = 230 V

Finally, we can calculate the efficiency (η) using the formula:

η = (Pout / Pin) * 100

Where Pout is the output power and Pin is the input power. Since this is a single-phase transformer, the power factor is given by:

Power Factor (PF) = Pout / Pin = (V2 * I2) / (V1 * I1)

We know V2 = 230 V, V1 = 800 V, and we can calculate I2 using Ohm's Law:

I2 = V2 / ZL = 230 / (2+j0.6) = 105.56 + j31.67 A

Now, we can calculate the power factor:

PF = (V2 * I2) / (V1 * I1) = (230 * (105.56 + j31.67)) / (800 * (8.29 - j2.35))

= 0.91 + j0.21

Finally, we can calculate the efficiency:

η = (PF) * 100 = (0.91 + j0.21) * 100 = 91% + j21%

Therefore, the secondary voltage applied to the load is 230 V, and the efficiency of the transformer is 91% with a power factor of 0.91 leading.

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Answer:

in the nucleus of the atom

Explanation:

a p 3 x

Hi there!

We can begin by calculating the distance remaining after the reaction time.

Δd = vt

Calculate the distance traveled within this time:

Δd = (16)(.79) = 12.64 m

Subtract from the total distance:

150 - 12.64 = 137.66 m remaining

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

vf² = vi² + 2ad, where vf = 0 since the train will have slowed down to rest.

Rearrange in terms of "a":

0 = vi² + 2ad

(-vi²) = 2ad

(-vi²)/2d = a

Plug in the given values:

(-(16²))/2(137.66) = a

-256/275.32 = -.9298 m/s²

The ratio of the time to rotate the first 2 revolutions to the next 2 revolutions is √2:1 (Option 3 is therefore the correct answer).

The angular acceleration of a merry-go-round is given by the formula α = (2π)/T², where T is the time taken to complete one revolution. When the merry-go-round starts from rest, its initial angular velocity is zero. As a result, the angular acceleration is constant. Let T1 and T2 be the time taken to complete the first two and next two revolutions, respectively. Therefore, the angular acceleration of the merry-go-round is given by the formula below:

α = (2π) / T1² = (2π) / T2².

We can rearrange this formula to find the ratio of T1 to T2.

αT1² = αT2²T1² = T2²

Since the angular acceleration is constant, we can assume that the ratio of the time taken to complete the first two revolutions to the time taken to complete the next two revolutions is the same as the ratio of the square roots of the time taken to complete the first two revolutions to the time taken to complete the next two revolutions.

T1 / T2 = √(T1² / T2²) = √1/2T1 / T2 = √2/2

The ratio of T1 to T2 is √2:1, therefore, the answer is option 3) √2:1.

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Answer:

1.5g/cm³

Explanation:

Given parameters:

Initial volume of the liquid  = 30cm³

Final volume of the liquid  = 50cm³

Mass of the liquid  = 30g

Unknown:

Density of the liquid  = ?

Solution:

Density is the mass per unit volume of a substance.

  Density  = \(\frac{mass}{volume}\)  

volume of the liquid  = final volume - initial volume  =  50cm³  -  30cm³

 volume of the liquid  = 20cm³

Density  = \(\frac{30}{20}\)   = 1.5g/cm³

The change in potential energy for a 61 kg diver from when she jumps off a 13m high diving board is 7,779.33J.

Potential energy in physics refers to the energy stored by an object due to its position.

The formula for potential energy depends on the force acting on the two objects. For the gravitational force, the formula is:

W = m×g×h = mgh

Where,

According to this question, a diver with mass 61kg jumps off 13m high diving board. The potential energy can be calculated as follows:

W = 61 × 9.81 × 13

W = 7,779.33J

Therefore, 7,779.33J is the potential energy of the diver.

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The wave with the longest wavelength in the electromagnetic spectrum is a radio wave. Radio waves have the longest wavelength and the lowest frequency of all electromagnetic waves. They are used for broadcasting radio and television signals, as well as for communication purposes such as mobile phones and walkie-talkies.

The electromagnetic spectrum consists of various types of waves, each with different wavelengths and frequencies. As the wavelength decreases, the frequency of the wave increases, and the energy carried by the wave increases. After radio waves, the electromagnetic spectrum includes microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

The properties of electromagnetic waves make them versatile and useful in various fields, such as communication, medicine, and astronomy. They can travel through a vacuum, at the speed of light, and their energy can be absorbed or emitted by matter. This makes them useful for studying the properties of matter and the universe, as well as for transmitting information over long distances.

In conclusion, radio waves have the longest wavelength in the electromagnetic spectrum, and they are widely used for communication and broadcasting purposes. The electromagnetic spectrum is a valuable tool for scientists and engineers, allowing them to study and utilize the properties of electromagnetic waves for a variety of applications.

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HI JOIN THE SAITAMA CULT

Answer:

-32

Explanation:

Management information systems (MIS) are a type of information system that supports various functions within an organization, including transaction processing, reporting, and middle management tasks.

Management information systems (MIS) encompass a range of systems that serve different purposes within an organization. These systems support transaction processing, which involves capturing and processing data related to business transactions.

MIS also provides reporting capabilities, allowing managers to generate and analyze various reports to support decision-making. Additionally, MIS supports middle management functions by providing tools and information for planning, controlling, and coordinating activities within departments or divisions.

The IT function is another area supported by MIS, as it provides the infrastructure and software necessary for the organization's information technology needs. Moreover, MIS enables employees to access historical records and retrieve information through online systems.

Lastly, MIS facilitates integrated data processing by connecting various departments and functions within the organization, ensuring a smooth flow of information and data sharing across different systems.

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To convert the area from square centimeters (cm²) to square kilometers (km²), we need to divide by the appropriate conversion factor.1 square kilometer (km²) is equal to 10^10 square centimeters (cm²).

Therefore, the patch's area in square kilometers is approximately 1.74 × 10^(-8) km².The presence of antibiotic resistance genes in non-pathogenic bacteria is significant because it highlights the potential for resistance to spread between bacterial populations. Non-pathogenic bacteria can act as reservoirs of resistance genes, and under certain conditions, these genes can be transferred to pathogenic bacteria, leading to the emergence of antibiotic-resistant strains.

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